CN112946017A - Automatic debugging method and device for flat plate ablation test state on arc heating equipment - Google Patents
Automatic debugging method and device for flat plate ablation test state on arc heating equipment Download PDFInfo
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Abstract
The invention relates to an automatic debugging method, a device and a computer-readable storage medium for a flat plate ablation test state on arc heating equipment, wherein the method comprises the following steps: setting the operation control parameter ranges of the electric arc heating equipment and the attack angle mechanism and the model state parameter range required by the test; setting initial operation control parameters of the electric arc heating equipment and the attack angle mechanism, and controlling the electric arc heating equipment and the attack angle mechanism to operate; measuring model state parameters in a flat plate ablation test; judging whether the measured model state parameters in the flat plate ablation test meet the model state parameter range required by the test, if so, controlling the arc heating equipment to stop running; otherwise, judging whether the running time of the arc heating equipment exceeds a preset value, if so, controlling the arc heating equipment to stop running, and otherwise, executing corresponding running control parameter adjustment operation according to the measured model state parameters in the flat plate ablation test and the model state parameter range required by the test. The invention can improve the test efficiency.
Description
Technical Field
The invention is suitable for the field of test state debugging of a flat plate ablation test on electric arc heating equipment, and particularly relates to an automatic debugging method and device of the flat plate ablation test state on the electric arc heating equipment and a computer readable storage medium.
Background
The flat plate ablation test on the electric arc heating equipment is one of important tests of aircraft ground tests and is used for ablation examination of material structures of aircrafts and the like. The plate ablation test adopts the ultrasonic turbulent plate ablation test technology, and the schematic diagram of the test method is shown in figure 1. High-temperature and high-pressure airflow generated by electric arc heating equipment 1 is sprayed out through a supersonic rectangular profile spray pipe 2, a flat plate model 3 is placed at a profile wall outlet of the rectangular profile spray pipe 2, the attack angle of the flat plate model 3 can be adjusted within 0-20 degrees, and the flat plate model 3 is tightly connected with the lower wall surface of the spray pipe outlet in a flush and seamless mode. In order to simulate the thermal environment of material structures such as aircrafts, the flat plate ablation test needs to debug a test state with full parameter requirements.
It is common in the art to adjust the arc heating apparatus to obtain the desired test condition parameters based on operator experience. After equipment runs, parameter measurement and equipment stops running each time, the test state parameters can be obtained only by carrying out data processing, and then whether the requirements of the test state parameters are met or not is judged manually; and if the state parameter does not meet the range requirement of the state parameter, adjusting the test control parameter, and carrying out the next debugging test. Generally, the equipment needs to operate for 4-8 times when one test state is debugged, the equipment operation interval is long every time, and the debugging test efficiency is low. If the simulation error of the state parameters of the debugging test is reduced, the running times of the equipment are increased. Meanwhile, the simulation precision of the state parameters of the debugging test is influenced by personnel and progress, and the simulation precision is different. The debugging test state equipment is operated for one time, the water, electricity and gas cost labor cost of equipment operation is increased, and in addition, the equipment loss is high, and the debugging test cost is high.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, an apparatus and a computer readable storage medium for automatically debugging the ablation test state of a flat panel on an arc heating device, aiming at one or more of the above-mentioned defects in the prior art, so as to implement automatic debugging of the ablation test state of the flat panel on the arc heating device.
In order to solve the technical problem, a first aspect of the present invention provides an automatic debugging method for a flat plate ablation test state on an arc heating device, including the following steps:
setting the operation control parameter ranges of the electric arc heating equipment and the attack angle mechanism and the model state parameter range required by the test;
setting initial operation control parameters of the electric arc heating equipment and the attack angle mechanism, and controlling the electric arc heating equipment and the attack angle mechanism to operate;
measuring model state parameters in a flat plate ablation test;
judging whether the measured model state parameters in the flat plate ablation test meet the model state parameter range required by the test:
if so, controlling the arc heating equipment to stop running;
otherwise, judging whether the running time of the arc heating equipment exceeds a preset value, if so, controlling the arc heating equipment to stop running, otherwise, executing corresponding running control parameter adjustment operation according to the measured model state parameters in the flat plate ablation test and the model state parameter range required by the test, and measuring the model state parameters again until the model state parameter range required by the test is met or the running time of the arc heating equipment reaches the preset value.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, the operation control parameters preferably comprise the gas flow and the control current of the arc heating equipment and the model attack angle of an attack angle mechanism; the model state parameters include the enthalpy of the air flow of the flow field, the surface heat flow of the model, and the surface pressure of the model.
In the method for automatically debugging the state of the flat plate ablation test on the arc heating equipment, preferably, the step of executing the corresponding operation control parameter adjustment operation according to the measured model state parameters in the flat plate ablation test and the model state parameter range required by the test comprises the following steps:
detecting that the enthalpy value of the airflow in the flow field is larger than the enthalpy value range of the airflow required by the test, and the surface heat flow is larger than the surface heat flow range required by the test, and executing a first operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is larger than the enthalpy value range of the airflow required by the test, and the surface heat flow is smaller than the surface heat flow range required by the test, and executing second operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow of the flow field is within the range of the enthalpy value of the airflow required by the test, and the surface heat flow is larger than the range of the surface heat flow required by the test, and executing third operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow of the flow field is within the range of the enthalpy value of the airflow required by the test, and the surface heat flow is smaller than the range of the surface heat flow required by the test, and executing fourth operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is smaller than the enthalpy value range of the airflow required by the test, and the surface heat flow is larger than the surface heat flow range required by the test, and executing a fifth operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is smaller than the enthalpy value range of the airflow required by the test, and the surface heat flow is smaller than the surface heat flow range required by the test, and executing sixth operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is larger than the enthalpy value range of the airflow required by the test, and the surface heat flow is located in the surface heat flow range required by the test, and executing seventh operation control parameter adjustment operation;
and if the enthalpy value of the airflow of the detection flow field is smaller than the enthalpy value range of the airflow required by the test and the surface heat flow is located in the surface heat flow range required by the test, executing eighth operation control parameter adjustment operation.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the first operation control parameter adjusting operation comprises the following steps:
detecting that the gas flow does not reach the minimum gas flow, and reducing the gas flow of the electric arc heating equipment and reducing the control current of the electric arc heating equipment when the control current does not reach the minimum control current;
detecting that the gas flow reaches the minimum gas flow, and reducing the control current of the arc heating equipment when the control current does not reach the minimum control current;
detecting that the gas flow does not reach the minimum gas flow, and reducing the gas flow of the electric arc heating equipment when the control current reaches the minimum control current;
detecting that the gas flow reaches the minimum gas flow, and judging that the enthalpy value of the gas flow meets the requirement of a parameter range when the control current reaches the minimum control current;
firstly, calculating the pressure of an arc chamber required by the test, and then calculating the gas flow required by the test by combining the enthalpy value of the gas flow required by the test;
wherein the control current required by the test is calculated according to the enthalpy value of the airflow required by the test and the actual equipment efficiency.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the second operation control parameter adjusting operation comprises the following steps:
when the detected gas flow does not reach the maximum gas flow, increasing the gas flow;
when the detected gas flow reaches the maximum gas flow, the control current does not reach the minimum control current and the model attack angle does not reach the maximum attack angle, the control current is reduced and the model attack angle is increased;
when the detected gas flow reaches the maximum gas flow and the control current reaches the minimum control current or the model attack angle does not reach the maximum attack angle, judging that the enthalpy value of the gas flow meets the parameter range requirement of the enthalpy value of the gas flow;
calculating the gas flow required by the test according to the enthalpy value of the gas flow required by the test and the actual equipment efficiency;
calculating control current required by the test according to the enthalpy value of the airflow required by the test and the actual equipment efficiency;
wherein the required model attack angle is calculated according to the air flow enthalpy value required by the test.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the third operation control parameter adjusting operation comprises the following steps:
when the model attack angle is detected not to reach the minimum attack angle, the model attack angle is reduced;
when the attack angle of the model reaches the minimum attack angle, the gas flow does not reach the minimum gas flow, and the equipment control current does not reach the minimum control current, reducing the gas flow and the control current;
when the attack angle of the model is detected to reach the minimum attack angle, the gas flow reaches the minimum gas flow, and the equipment control current does not reach the minimum control current, judging that the enthalpy value of the gas flow meets the requirement and reducing the control current;
when the attack angle of the model is detected to reach the minimum attack angle, the gas flow does not reach the minimum gas flow, and the equipment control current reaches the minimum control current, judging that the enthalpy value of the gas flow meets the requirement and reducing the gas flow;
when the attack angle of the detection model, the gas flow and the control current reach the minimum at the same time, the enthalpy value of the gas flow and the surface heat flow are judged to meet the requirement of the parameter range.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the fourth operation control parameter adjusting operation comprises the following steps:
the fourth operation control parameter adjustment operation includes the steps of:
when the attack angle of the detection model does not reach the maximum attack angle, increasing the attack angle;
when the attack angle of the model reaches the maximum attack angle, the gas flow does not reach the maximum gas flow and the equipment control current does not reach the maximum control current, increasing the gas flow and increasing the control current;
when the attack angle of the model reaches the maximum attack angle, the gas flow reaches the maximum gas flow and the equipment control current does not reach the maximum control current, judging that the enthalpy value of the gas flow meets the requirement and increasing the control current;
when the attack angle of the model is detected to reach the maximum attack angle, the gas flow does not reach the maximum gas flow, and the equipment control current reaches the maximum control current, judging that the enthalpy value of the gas flow meets the requirement and increasing the gas flow;
when the attack angle of the detection model, the gas flow and the control current reach the maximum simultaneously, the enthalpy value of the gas flow and the surface heat flow are judged to meet the requirement of the parameter range.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the fifth operation control parameter adjusting operation includes the following steps:
when the detected gas flow does not reach the minimum gas flow, reducing the gas flow;
when the detected gas flow reaches the minimum gas flow, the control current does not reach the maximum control current and the model attack angle does not reach the minimum attack angle, the control current is increased and the model attack angle is reduced;
when the detected gas flow reaches the minimum gas flow and the control current reaches the maximum control current or the model attack angle does not reach the minimum attack angle, the enthalpy value of the gas flow is judged to meet the parameter range requirement of the enthalpy value of the gas flow.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the sixth operation control parameter adjusting operation includes the following steps:
when the control current and the gas flow are detected not to reach the maximum, the control current is increased and the gas flow is increased;
when the control current reaches the maximum control current and the gas flow does not reach the maximum gas flow, increasing the gas flow;
when the control current is detected not to reach the maximum control current and the gas flow reaches the maximum gas flow, the control current is increased;
when the detected gas flow and the control current reach the maximum simultaneously, the enthalpy value of the air flow is judged to meet the requirement of the parameter range.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the seventh operation control parameter adjusting operation includes the following steps:
when the model attack angle is detected not to reach the maximum attack angle and the control current is detected not to reach the minimum control current, reducing the control current and increasing the model attack angle;
when the attack angle of the model reaches the maximum attack angle, the control current does not reach the minimum control current and the gas flow does not reach the maximum gas flow, reducing the control current and increasing the gas flow;
and when the detected control current reaches the minimum control current or the gas flow reaches the maximum gas flow, judging that the enthalpy value of the gas flow and the surface heat flow both meet the requirement of the parameter range.
In the method for automatically debugging the ablation test state of the flat plate on the arc heating equipment, preferably, the eighth operation control parameter adjusting operation includes the following steps:
when the model attack angle does not reach the minimum attack angle and the control current does not reach the maximum control current, increasing the control current and reducing the model attack angle;
when the attack angle of the model reaches the minimum attack angle, the control current does not reach the maximum control current and the gas flow does not reach the minimum gas flow, the control current is increased and the gas flow is reduced;
and when the detected control current reaches the maximum control current or the gas flow reaches the minimum gas flow, judging that the enthalpy value of the gas flow and the surface heat flow both meet the requirement of the parameter range.
In a second aspect of the present invention, an apparatus for automatically adjusting the ablation test status of a flat plate on an arc heating device is provided, which includes: at least one processor, at least one memory and a computer program stored in the memory, characterized in that the computer program realizes the method as described before when the computer program is executed by the processor.
In a third aspect of the invention, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor implements the method as described above.
The method, the device and the computer readable storage medium for automatically debugging the ablation test state of the flat plate on the electric arc heating equipment have the following beneficial effects that: the invention improves the test state debugging method of the flat plate ablation test on the electric arc heating equipment, improves the manual multiple debugging test into the automatic single debugging test, automatically adjusts the operation parameters of the equipment, continuously performs parameter measurement and data processing in real time, automatically judges whether the requirement of the test state parameters is met, can debug the required test state parameters through one test, improves the debugging test efficiency, improves the debugging test simulation precision and reduces the debugging test cost.
Drawings
FIG. 1 is a schematic diagram of a flat plate ablation test apparatus on an arc heating apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a flow chart of a method for automatically debugging the ablation test status of a flat plate on an arc heating device according to a preferred embodiment of the invention;
FIG. 3 is a diagram of calibration model measurement point profiles in accordance with a preferred embodiment of the present invention;
FIG. 4 is a flow chart of an operation of adjusting control parameters according to a preferred embodiment of the present invention;
FIG. 5 is a flow chart of a first operational control parameter adjustment operation according to a preferred embodiment of the present invention;
FIG. 6 is a flow chart of a second operational control parameter adjustment operation in accordance with a preferred embodiment of the present invention;
FIG. 7 is a flowchart of a third run control parameter adjustment operation in accordance with a preferred embodiment of the present invention;
FIG. 8 is a flowchart of a fourth run control parameter adjustment operation in accordance with a preferred embodiment of the present invention;
FIG. 9 is a flowchart of a fifth run control parameter adjustment operation in accordance with a preferred embodiment of the present invention;
FIG. 10 is a flowchart of a sixth operational control parameter adjustment operation in accordance with a preferred embodiment of the present invention;
FIG. 11 is a flowchart of a seventh run control parameter adjustment operation in accordance with the preferred embodiment of the present invention;
fig. 12 is a flowchart of an eighth operation control parameter adjustment operation according to the preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 2, a flowchart of a method for automatically debugging the ablation test status of a flat panel on an arc heating apparatus according to a preferred embodiment of the invention is shown. As shown in fig. 2, the method for automatically debugging the ablation test status of the flat plate on the arc heating device provided by this embodiment includes the following steps:
s101, starting a process; the invention adopts the equipment shown in figure 1, the high-temperature high-pressure airflow generated by the electric arc heating equipment 1 is sprayed out through the supersonic speed rectangular surface spray pipe 2, the flat plate model 3 is arranged at the surface wall outlet of the rectangular surface spray pipe 2, the attack angle of the flat plate model 3 is controlled by an attack angle mechanism and can be adjusted within 0-20 degrees, and the flat plate model 3 and the lower wall surface of the spray pipe outlet are tightly connected, flush and have no gap. The flat model 3 (model for short) can adopt a water-cooling heat flow pressure calibration model, and a sensor is arranged on the surface of the flat model. The flat plate model 3 can be put in after the flow generated by the subsequent arc heating device 1 is stable.
And S102, setting the operation control parameter ranges of the arc heating equipment and the attack angle mechanism. The operation control parameters comprise the gas flow and the control current of the electric arc heating equipment and the model attack angle adjusted by the attack angle mechanism. The operation control parameters also include an operating time of the arc heating apparatus. Therefore, the maximum control current I can be set in this step according to the capacity of the arc heating devicemaxMinimum control current IminMaximum gas flow rate GmaxMinimum gas flow GminMaximum angle of attack alphamaxMinimum angle of attack alphaminAnd the maximum run time of the device.
S103, setting a model state parameter range required by the test; wherein the model state parameters include the enthalpy value H of the model0Surface heat flow q, etc.
S104, setting initial operation control parameters of the arc heating equipment; calculating the gas flow and control current of the electric arc heating equipment, equipment operation control parameters such as a model attack angle and the like according to a formula, and determining and setting initial equipment operation control parameters by combining the previous similar equipment operation parameter data; such as gas flow 1200g, model angle of attack 5 deg., and control current 2000A.
S105, controlling the operation of the arc heating equipment; controlling an attack angle mechanism to adjust the model attack angle according to the initial operation control parameters, controlling the arc heating equipment to operate in an ignition mode, and establishing a high-temperature flow field;
s106, starting parameter measurement; and after the flow field is stable, sending the water-cooling heat flow pressure calibration model into the center of the flow field, staying for a long time, and starting measurement of the enthalpy value of the model airflow and the heat flow on the surface of the model.
S107, acquiring and processing the model state parameters through a collector, and measuring the model state parameters to obtain model state parameters in a flat plate ablation test; preferably, as shown in fig. 3, the signals of the heat flow sensors installed on the parallel line of 25mm left and right of the center line and the center line of the water-cooling heat flow pressure calibration model and 10mm, 35mm, 60mm and 85mm away from the top end of the calibration model, the signals of the pressure sensors installed on the parallel line of 12.5mm left and right of the center line of the water-cooling heat flow pressure calibration model and 10mm, 35mm, 60mm and 85mm away from the top end of the calibration model, the signals of the gas flow sensors installed on the gas pipeline and the like pass through the amplifier filter and are collected by the data collector, and the real-time processing is carried out to obtain0The surface heat flow q of the model, the surface pressure of the model and other state parameters.
S108, judging whether the measured model state parameters in the flat plate ablation test meet the model state parameter range required by the test: if yes, go to step S111, otherwise go to step S109; specifically, the enthalpy value H of the airflow of the model obtained by processing in the software in the step0And comparing the model surface heat flow q with the set air flow enthalpy value and the parameter range requirement of the surface heat flow to judge whether the requirement is met.
S109, judging whether the running time of the arc heating equipment exceeds a preset value, if so, turning to a step S111, otherwise, turning to a step S110; in this step, it is determined whether the operation time of the arc heating apparatus exceeds the maximum operation time of the apparatus set in step S102, and if so, it means that the operation time exceeds a preset value.
S110, executing corresponding operation control parameter adjustment operation according to the measured model state parameters in the flat plate ablation test and the model state parameter range required by the test, and measuring the model state parameters again in the step S106 until the model state parameter range required by the test is met or the preset value of the operation time of the arc heating equipment is reached. If the model state parameters do not meet the parameter range requirement and the equipment operation time does not exceed the preset value, adjusting the equipment operation control parameters such as gas flow, control current, model attack angle and the like in real time, returning to the step S106, and measuring the parameters in real time again without stopping the equipment operation;
s111, controlling the arc heating equipment to stop running; when the air flow enthalpy value of the flow field and the heat flow on the surface of the model meet the requirement of the state parameter range, or the operation time of the equipment exceeds a preset value, stopping the operation of the electric arc heating equipment, sending the water-cooling heat flow pressure calibration model out of the flow field, and ending the debugging test of the test state;
and S112, ending the process.
Referring to fig. 4, a flowchart of an operation of adjusting control parameters is shown according to a preferred embodiment of the present invention. As shown in fig. 4, the executing of the corresponding operation control parameter adjustment operation according to the measured model state parameter in the flat plate ablation test and the model state parameter range required by the test in step S110 may specifically include executing the following detections in sequence after the start of the process:
1) detecting flow field enthalpy value H0If the enthalpy value of the airflow is larger than the enthalpy value range required by the test and the surface heat flow q is larger than the surface heat flow range required by the test, executing a first operation control parameter adjustment operation, namely executing a subprogram 1;
2) detecting flow field enthalpy value H0If the enthalpy value of the airflow is larger than the enthalpy value range required by the test and the surface heat flow q is smaller than the surface heat flow range required by the test, executing a second operation control parameter adjustment operation, namely executing a subprogram 2;
3) detecting flow field enthalpy value H0If the enthalpy value of the airflow is within the range of the enthalpy value required by the test and the surface heat flow q is larger than the range of the surface heat flow required by the test, executing a third operation control parameter adjustment operation, namely executing a subprogram 3;
4) detecting flow field enthalpy value H0If the enthalpy value of the airflow is within the range of the enthalpy value required by the test and the surface heat flow q is smaller than the range of the surface heat flow required by the test, executing a fourth operation control parameter adjustment operation, namely executing a subprogram 4;
5) detecting flow field enthalpy value H0If the enthalpy value of the air flow is smaller than the enthalpy value range required by the test and the surface heat flow q is larger than the surface heat flow range required by the test, executing a fifth operation control parameter adjustment operation, namely executing a subprogram 5;
6) detecting flow field enthalpy value H0If the enthalpy value of the airflow is smaller than the enthalpy value range required by the test and the surface heat flow q is smaller than the surface heat flow range required by the test, executing a sixth operation control parameter adjustment operation, namely executing a subprogram 6;
7) detecting flow field enthalpy value H0If the enthalpy value of the airflow is larger than the enthalpy value range required by the test and the surface heat flow q is within the surface heat flow range required by the test, executing a seventh operation control parameter adjustment operation, namely executing a subprogram 7;
8) detecting flow field enthalpy value H0And if the enthalpy value of the air flow is smaller than the enthalpy value range required by the test and the surface heat flow q is within the surface heat flow range required by the test, executing an eighth operation control parameter adjustment operation, namely executing the sub-routine 8.
Referring to fig. 5, a flowchart of a first operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0And if the enthalpy value of the air flow is larger than the parameter range requirement of the enthalpy value of the air flow and the surface heat flow q is larger than the parameter range requirement of the surface heat flow, executing a subprogram 1. As shown in fig. 5, the first operation control parameter adjustment operation includes the following steps:
1) detecting gas flow not reaching minimum gas flow GminThe control current does not reach the minimum control current IminWhen the arc heating device is used, the gas flow of the arc heating device is reduced, and the control current of the arc heating device is reduced;
2) detecting the gas flow to the minimum gas flow GminThe control current does not reach the minimum control current IminWhen the control current of the arc heating device is reduced；
3) Detecting gas flow not reaching minimum gas flow GminThe control current reaches the minimum control current IminWhen the arc heating device is used, the gas flow of the arc heating device is reduced;
4) detecting the gas flow to the minimum gas flow GminThe control current reaches the minimum control current IminAnd judging that the enthalpy value of the airflow meets the requirement of the parameter range.
In the first operation control parameter adjustment operation, the arc chamber pressure required by the test is firstly calculated, and then the gas flow required by the test is calculated by combining the air flow enthalpy value required by the test, and the gas flow required by the test can be specifically calculated by the following formula:
GREF＝0.123P01REFA*H0REF -0.397
wherein, G in the formulaREFGas flow rate required for the test, H0REFEnthalpy of air flow required for the test, P01REFArc chamber pressure of the arc heating apparatus required for the test, A*Is the effective area of the sonic cross-section of the nozzle.
To calculate the gas flow G required for the testREFThe invention can calculate the velocity coefficient lambda of the outlet of the spray pipe and the Mach number M of the outlet by the formulas (1) to (3)1Calculating the debugged shock wave oblique angle beta according to the formula (4), and calculating the static pressure P of the outlet of the spray pipe required by the test according to the formula (5)1REFCalculating the arc chamber pressure P required by the test from the formula (6) and the formula (7)01REFCalculating the gas flow G required for the test from the formula (8)REFI.e. the adjusted gas flow, the above formula is obtained.
q(λ)＝A*/A (1)
In the formula:
q (λ) - -a function with respect to λ;
lambda-velocity coefficient of the nozzle outlet cross section;
A*effective area of sonic cross-section of nozzle, m2；
A-effective area of the cross-section of the nozzle outlet, m2。
In the formula:
gamma-specific heat ratio of gas.
In the formula:
M1nozzle exit Mach number.
In the formula:
alpha-the adjusted model attack angle, namely the adjusted air flow break angle;
beta- -the adjusted shock bevel angle.
In the formula:
P1REF-the static pressure at the outlet of the nozzle, MPa, required for the test.
P2REFThe static airflow pressure after oblique shock required by the test, namely the model surface pressure required by the test, MPa.
In the formula:
pi (lambda) -total hydrostatic pressure ratio.
P01REF＝P1REF/π(λ) (7)
In the formula:
P01REFthe arc chamber pressure, MPa, of the arc heating apparatus required for the test.
GREF＝0.123P01REFA*H0REF -0.397 (8)
In the formula:
GREF-gas flow rate required for the test, kg/s;
H0REF-enthalpy of air flow required for the test, MJ/kg.
The first operation control parameter adjustment operation calculates the control current required by the test according to the enthalpy value of the air flow required by the test and the actual equipment efficiency, and the control current comprises the following formula:
wherein I' is the control current required by the test, H0Measuring the enthalpy of the obtained air flow; g is the measured gas flow; i is the arc current before adjustment; h0REFThe enthalpy of the air flow required for the test; gREFThe gas flow required for the test.
In order to calculate the control current I' required by the test, the invention can firstly calculate the adjusted enthalpy value of the air flow by the formula (9), calculate the actual equipment efficiency by the formula (10), and substitute the air flow required by the test and the air flow enthalpy value required by the test by the formula (11) to calculate the control current required by the test.
H0＝5.1×10-3(P01A*/G)2.519 (9)
In the formula:
P01-measuring the resulting arc chamber pressure, MPa, of the arc heating apparatus.
Eta-efficiency of operation of the electric arc heating apparatus,%;
u-arc voltage, V;
i-arc current, A;
referring to fig. 6, a flowchart of a second operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0If the enthalpy value of the air flow is larger than the parameter range requirement of the enthalpy value of the air flow and the surface heat flow q is smaller than the parameter range requirement of the surface heat flow, the subprogram 2 is executed. As shown in fig. 6, the second operation control parameter adjustment operation includes the following steps:
1) detecting that the gas flow does not reach the maximum gas flow GmaxWhile, increasing the gas flow;
2) detecting that the gas flow reaches the maximum gas flow GmaxThe control current does not reach the minimum control current IminThe sum model attack angle does not reach the maximum attack angle alphamaxReducing the control current and increasing the attack angle of the model;
3) detecting that the gas flow reaches the maximum gas flow GmaxWhile the control current reaches the minimum control current IminOr the model attack angle does not reach the maximum attack angle alphamaxAnd judging that the enthalpy value of the air flow meets the parameter range requirement of the enthalpy value of the air flow.
And calculating the gas flow required by the test according to the enthalpy value of the gas flow required by the test and the actual equipment efficiency in the second operation control parameter adjusting operation. Preferably, it is calculated in particular by the following formula:
wherein H0For measuring enthalpy of air flow, G for measuring gas flow, H0REFEnthalpy of air flow required for the test, GREFTo calculate the gas flow required for the resulting test.
Wherein the gas flow G required for the testREFFirstly, calculating and debugging the enthalpy value of the air flow by the formula (9), calculating the actual equipment efficiency by the formula (10), and substituting the enthalpy value of the air flow required by the test into the formula (12) to calculate the required air flow.
And calculating the control current required by the test according to the enthalpy value of the air flow required by the test and the actual equipment efficiency in the second operation control parameter adjusting operation, wherein the specific method is consistent with the subroutine 1.
And calculating a model attack angle required by the test according to the enthalpy value of the air flow required by the test in the second operation control parameter adjusting operation. Preferably, the nozzle exit velocity coefficient λ and exit mach number M may be calculated from equations (1) to (3)1Calculating the adjusted static pressure P of the outlet of the nozzle by the formulas (6) and (13)1The model attack angle alpha required by the test is jointly solved by the formula (14), the formula (15) and the formula (16)REF. The model attack angle can be gradually and linearly reduced according to the requirement, so that the model attack angle meeting the test requirement can be debugged.
P1＝P01π(λ) (13)
In the formula:
P1and (4) adjusting the outlet static pressure of the spray pipe, namely MPa.
P01-measuring the resulting arc chamber pressure, MPa, of the arc heating apparatus.
In the formula:
αREF-the model angle of attack required for the test;
βREFthe shock angle required for the test.
In the formula:
P2the debugged static airflow pressure after oblique shock, i.e. the debugged model surface pressure, MPa.
qREF＝0.95H0REF 0.85P2 0.183αREF 0.3 (16)
In the formula:
qREFmodel surface Heat flow, MW/m, required for the test2；
H0REF-test required enthalpy of air flow, MJ/kg;
αREF-the model angle of attack required for the test.
Referring to fig. 7, a flowchart of a third operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0And when the requirement of the enthalpy value parameter range of the airflow is met and the surface heat flow q is larger than the requirement of the surface heat flow parameter range, executing a subprogram 3. As shown in fig. 7, the third operation control parameter adjustment operation includes the following steps:
1) detecting that the model attack angle does not reach the minimum attack angle alphaminReducing the attack angle of the model;
2) detecting the attack angle of the model to the minimum attack angle alphaminGas flow not reaching the minimum gas flow GminThe equipment control current does not reach the minimum control current IminWhen the gas flow is reduced, the control current is reduced;
3) detecting the attack angle of the model to the minimum attack angle alphaminThe gas flow reaches the minimum gas flow GminThe equipment control current does not reach the minimum control current IminJudging that the enthalpy value of the airflow meets the requirement and reducing the control current;
4) detecting the attack angle of the model to the minimum attack angle alphaminGas flow not reaching the minimum gas flow GminThe equipment control current reaches the minimum control current IminJudging that the enthalpy value of the airflow meets the requirement and reducing the flow rate of the airflow;
5) when the attack angle of the detection model, the gas flow and the control current reach the minimum at the same time, the enthalpy value of the gas flow and the surface heat flow are judged to meet the requirement of the parameter range.
Firstly, calculating the pressure of an arc chamber required by the test, then calculating the gas flow required by the test by combining the enthalpy value of the gas flow required by the test, and performing the same subprogram 1;
wherein, the control current required by the test is calculated according to the enthalpy value of the airflow required by the test and the actual equipment efficiency, and the same as the subprogram 1 is carried out;
and calculating a model attack angle required by the test according to the enthalpy value of the airflow required by the test, and the same as the subprogram 2.
Referring to fig. 8, a flowchart of a fourth operation control parameter adjustment operation according to the preferred embodiment of the invention is shown. When enthalpy value H of airflow0And when the requirement of the enthalpy value parameter range of the airflow is met and the surface heat flow q is smaller than the requirement of the surface heat flow parameter range, executing a subprogram 4. As shown in fig. 8, the fourth operation control parameter adjustment operation includes the following steps:
1) detecting that the model attack angle does not reach the maximum attack angle alphamaxIncreasing the attack angle of the model;
2) detecting the maximum attack angle alpha of the modelmaxGas flow rate not reaching maximum gas flow rate GmaxThe control current of the equipment does not reach the maximum control current ImaxIncreasing gas flow and increasing control current;
3) detecting the maximum attack angle alpha of the modelmaxThe gas flow reaches the maximum gas flow GmaxThe control current of the equipment does not reach the maximum control current ImaxJudging that the enthalpy value of the airflow meets the requirement and increasing the control current;
4) detecting the maximum attack angle alpha of the modelmaxGas flow rate not reaching maximum gas flow rate GmaxThe device control current reaches the maximum control current ImaxJudging that the enthalpy value of the airflow meets the requirement and increasing the flow rate of the airflow;
5) when the attack angle of the detection model, the gas flow and the control current reach the maximum simultaneously, the enthalpy value of the gas flow and the surface heat flow are judged to meet the requirement of the parameter range.
The new model attack angle is calculated by the method of the subprogram 2, and the model attack angle can be increased gradually and linearly according to the requirement, so that the model attack angle meeting the requirement is debugged. The new gas flow and control current are calculated by the method of subroutine 1.
Referring to fig. 9, a flowchart of a fifth operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0If the enthalpy value of the air flow is smaller than the range requirement of the enthalpy value parameter of the air flow and the surface heat flow q is larger than the range requirement of the surface heat flow parameter of the air flow, the subprogram 5 is executed. As shown in fig. 9, the fifth operation control parameter adjustment operation includes the following steps:
1) detecting gas flow not reaching minimum gas flow GminWhen the gas flow is reduced;
2) detecting the gas flow to the minimum gas flow GminThe control current does not reach the maximum control current ImaxAnd the model attack angle does not reach the minimum attack angle alphaminIncreasing the control current and reducing the attack angle of the model;
3) detecting the gas flow to the minimum gas flow GminWhile the control current reaches the maximum control current ImaxOr the angle of attack of the model reaches the minimum angle of attack alphaminAnd judging that the enthalpy value of the air flow meets the parameter range requirement of the enthalpy value of the air flow.
The new gas flow rate is calculated by the method of subroutine 2. The new control current is calculated by the method of subroutine 1. The new model attack angle is calculated by the method of the subprogram 2, and the model attack angle can be gradually and linearly reduced according to the requirement, so that the model attack angle meeting the requirement is debugged.
Referring to fig. 10, a flowchart of a sixth operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0If the enthalpy value of the air flow is smaller than the parameter range requirement of the enthalpy value of the air flow and the surface heat flow q is smaller than the parameter range requirement of the surface heat flow, the subroutine 6 is executed. As shown in fig. 10, the sixth operation control parameter adjustment operation includes the steps of:
1) when the control current and the gas flow are detected not to reach the maximum, the control current is increased and the gas flow is increased;
2) detecting that the control current reaches the maximum control current ImaxGas flow rate not reaching maximum gas flow rate GmaxWhile, increasing the gas flow;
3) detecting that the control current does not reach the maximum control current ImaxGas flowThe amount reaches the maximum gas flow GmaxWhen the current is increased, the control current is increased;
4) when the detected gas flow and the control current reach the maximum simultaneously, the enthalpy value of the air flow is judged to meet the requirement of the parameter range.
The new gas flow rate and the new control current are calculated by the method of subroutine 1.
Referring to fig. 11, a flowchart of a seventh operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0And if the enthalpy value of the air flow is larger than the parameter range requirement of the enthalpy value of the air flow and the surface heat flow q meets the parameter range requirement of the surface heat flow, executing a sub-program 7. As shown in fig. 11, the seventh operation control parameter adjustment operation includes the steps of:
1) detecting that the model attack angle does not reach the maximum attack angle alphamaxThe control current does not reach the minimum control current IminReducing the control current and increasing the attack angle of the model;
2) detecting the maximum attack angle alpha of the modelmaxThe control current does not reach the minimum control current IminGas flow rate not reaching maximum gas flow rate GmaxWhen the gas flow rate is increased, the control current is reduced;
3) detecting that the control current reaches the minimum control current IminOr the gas flow reaches the maximum gas flow GmaxAnd judging that the enthalpy value of the airflow and the surface heat flow both meet the requirement of the parameter range.
The new control current and the new gas flow are calculated by the method of subroutine 1. The new model attack angle is calculated by the method of the subprogram 2, and the model attack angle can be increased gradually and linearly according to the requirement, so that the model attack angle meeting the requirement is debugged.
Referring to fig. 12, a flowchart of an eighth operation control parameter adjustment operation according to a preferred embodiment of the invention is shown. When enthalpy value H of airflow0And when the enthalpy value of the air flow is smaller than the parameter range requirement of the enthalpy value of the air flow and the surface heat flow q meets the parameter range requirement of the surface heat flow, executing a sub-routine 8. As shown in fig. 12, the eighth operation control parameter adjustment operation includes the steps of:
1) detecting a minimum attack for a model with an angle of attack not reaching a minimumAngle GminThe control current does not reach the maximum control current ImaxIncreasing the control current and reducing the attack angle of the model;
2) detecting the attack angle of the model to the minimum attack angle alphaminThe control current does not reach the maximum control current ImaxGas flow not reaching the minimum gas flow GminIncreasing the control current and decreasing the gas flow;
3) detecting that the control current reaches the maximum control current ImaxOr the gas flow reaches the minimum gas flow GminThen, the enthalpy value of the airflow and the surface heat flow are judged to meet the requirement of the parameter range
The new control current and the new gas flow are calculated by the method of subroutine 1. The new model attack angle is calculated by the method of the subprogram 2, and the model attack angle can be gradually and linearly reduced according to the requirement, so that the model attack angle meeting the requirement is debugged.
The embodiment of the invention also provides a device for executing the automatic debugging method of the flat plate ablation test state on the arc heating equipment, which comprises the following steps: at least one processor, at least one memory, and a computer program stored in the memory, which when executed by the processor, implement the method for automatically debugging the state of a flat panel ablation test on an arc heating apparatus as in the above embodiments.
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for automatically debugging the state of the flat plate ablation test on the arc heating apparatus in the above embodiment is implemented.
The principle of the method is that firstly, the operation range of the equipment and the operation parameters of the preset equipment are set, after the ignition operation flow field of the equipment is established stably, the enthalpy value of model airflow and the heat flow on the surface of the model are measured, the enthalpy value of the model airflow and the state parameters such as the heat flow on the surface of the model are obtained through real-time processing, and the state parameters are compared with the requirement of the range of the state parameters; and when the state parameters do not meet the range requirements of the state parameters, adjusting the gas flow, the control current and the attack angle of the model in real time, simultaneously, continuously measuring and processing data in real time to obtain the state parameters such as the enthalpy value of the model airflow, the surface heat flow of the model and the like, comparing the state parameters with the range requirements of the state parameters until the debugged state parameters meet the range requirements of the state parameters, stopping the operation of the equipment, and ending the debugging test of the test state. According to the invention, the operation control parameters of the equipment are adjusted in real time, the state parameters such as the enthalpy value of the air flow, the surface heat flow and the like are obtained through real-time measurement and collection and processing, and are compared with the required parameter range, so that the test state of the flat plate ablation test on the arc heating equipment can be automatically debugged, the required test state parameters can be debugged through one test, the debugging test efficiency can be greatly improved, the simulation precision of the debugging test is improved, and the debugging test cost is reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic debugging method for a flat plate ablation test state on arc heating equipment is characterized by comprising the following steps:
setting the operation control parameter ranges of the electric arc heating equipment and the attack angle mechanism and the model state parameter range required by the test;
setting initial operation control parameters of the electric arc heating equipment and the attack angle mechanism, and controlling the electric arc heating equipment and the attack angle mechanism to operate;
measuring model state parameters in a flat plate ablation test;
judging whether the measured model state parameters in the flat plate ablation test meet the model state parameter range required by the test:
if so, controlling the arc heating equipment to stop running;
otherwise, judging whether the running time of the arc heating equipment exceeds a preset value, if so, controlling the arc heating equipment to stop running, otherwise, executing corresponding running control parameter adjustment operation according to the measured model state parameters in the flat plate ablation test and the model state parameter range required by the test, and measuring the model state parameters again until the model state parameter range required by the test is met or the running time of the arc heating equipment reaches the preset value.
2. The automatic debugging method for the ablation test state of the flat plate on the arc heating equipment as claimed in claim 1, characterized in that:
the operation control parameters comprise the gas flow and the control current of the electric arc heating equipment and the model attack angle of the attack angle mechanism;
the model state parameters include the enthalpy of the air flow of the flow field, the surface heat flow of the model, and the surface pressure of the model.
3. The method for automatically debugging the state of the flat plate ablation test on the arc heating equipment according to claim 2, wherein the step of executing the corresponding operation control parameter adjustment operation according to the measured model state parameters in the flat plate ablation test and the model state parameter range required by the test comprises the following steps:
detecting that the enthalpy value of the airflow in the flow field is larger than the enthalpy value range of the airflow required by the test, and the surface heat flow is larger than the surface heat flow range required by the test, and executing a first operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is larger than the enthalpy value range of the airflow required by the test, and the surface heat flow is smaller than the surface heat flow range required by the test, and executing second operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow of the flow field is within the range of the enthalpy value of the airflow required by the test, and the surface heat flow is larger than the range of the surface heat flow required by the test, and executing third operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow of the flow field is within the range of the enthalpy value of the airflow required by the test, and the surface heat flow is smaller than the range of the surface heat flow required by the test, and executing fourth operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is smaller than the enthalpy value range of the airflow required by the test, and the surface heat flow is larger than the surface heat flow range required by the test, and executing a fifth operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is smaller than the enthalpy value range of the airflow required by the test, and the surface heat flow is smaller than the surface heat flow range required by the test, and executing sixth operation control parameter adjustment operation;
detecting that the enthalpy value of the airflow in the flow field is larger than the enthalpy value range of the airflow required by the test, and the surface heat flow is located in the surface heat flow range required by the test, and executing seventh operation control parameter adjustment operation;
and if the enthalpy value of the airflow of the detection flow field is smaller than the enthalpy value range of the airflow required by the test and the surface heat flow is located in the surface heat flow range required by the test, executing eighth operation control parameter adjustment operation.
4. The automatic debugging method for the ablation test state of a flat plate on an arc heating device according to claim 3, wherein the first operation control parameter adjusting operation comprises the following steps:
detecting that the gas flow does not reach the minimum gas flow, and reducing the gas flow of the electric arc heating equipment and reducing the control current of the electric arc heating equipment when the control current does not reach the minimum control current;
detecting that the gas flow reaches the minimum gas flow, and reducing the control current of the arc heating equipment when the control current does not reach the minimum control current;
detecting that the gas flow does not reach the minimum gas flow, and reducing the gas flow of the electric arc heating equipment when the control current reaches the minimum control current;
detecting that the gas flow reaches the minimum gas flow, and judging that the enthalpy value of the gas flow meets the requirement of a parameter range when the control current reaches the minimum control current;
firstly, calculating the pressure of an arc chamber required by the test, and then calculating the gas flow required by the test by combining the enthalpy value of the gas flow required by the test;
wherein the control current required by the test is calculated according to the enthalpy value of the airflow required by the test and the actual equipment efficiency.
5. The method for automatically debugging the ablation test state of a flat plate on an arc heating device according to claim 4, wherein the step of calculating the arc chamber pressure required by the test and then calculating the gas flow required by the test by combining the enthalpy value of the gas flow required by the test comprises the following steps:
GREF＝0.123P01REFA*H0REF -0.397
in the formula GREFGas flow rate required for the test, H0REFEnthalpy of air flow required for the test, P01REFArc chamber pressure of the arc heating apparatus required for the test, A*Is the effective area of the sonic cross section of the nozzle;
the control current required by the test is calculated according to the enthalpy value of the airflow required by the test and the actual equipment efficiency, and the control current is calculated by the following formula:
wherein I' is the control current required by the test, H0Measuring the enthalpy of the obtained air flow; g is the measured gas flow; i is the arc current before adjustment; h0REFThe enthalpy of the air flow required for the test; gREFThe gas flow required for the test.
6. The automatic debugging method for the ablation test state of the flat plate on the arc heating equipment as claimed in claim 3, wherein the second operation control parameter adjusting operation comprises the following steps:
when the detected gas flow does not reach the maximum gas flow, increasing the gas flow;
when the detected gas flow reaches the maximum gas flow, the control current does not reach the minimum control current and the model attack angle does not reach the maximum attack angle, the control current is reduced and the model attack angle is increased;
when the detected gas flow reaches the maximum gas flow and the control current reaches the minimum control current or the model attack angle does not reach the maximum attack angle, judging that the enthalpy value of the gas flow meets the parameter range requirement of the enthalpy value of the gas flow;
calculating the gas flow required by the test according to the enthalpy value of the gas flow required by the test and the actual equipment efficiency;
calculating control current required by the test according to the enthalpy value of the airflow required by the test and the actual equipment efficiency;
wherein the required model attack angle is calculated according to the air flow enthalpy value required by the test.
7. The automatic debugging method for the ablation test state of the flat plate on the arc heating equipment as claimed in claim 6, characterized in that:
the method for calculating the gas flow required by the test according to the enthalpy value of the gas flow required by the test and the actual equipment efficiency comprises the following steps of:
wherein H0For measuring enthalpy of air flow, G for measuring gas flow, H0REFEnthalpy of air flow required for the test, GREFTo calculate the gas flow required for the resulting test.
8. The automatic debugging method for the ablation test state of the flat plate on the arc heating equipment as claimed in claim 3, characterized in that:
the third operation control parameter adjustment operation includes the steps of:
when the model attack angle is detected not to reach the minimum attack angle, the model attack angle is reduced;
when the attack angle of the model reaches the minimum attack angle, the gas flow does not reach the minimum gas flow, and the equipment control current does not reach the minimum control current, reducing the gas flow and the control current;
when the attack angle of the model is detected to reach the minimum attack angle, the gas flow reaches the minimum gas flow, and the equipment control current does not reach the minimum control current, judging that the enthalpy value of the gas flow meets the requirement and reducing the control current;
when the attack angle of the model is detected to reach the minimum attack angle, the gas flow does not reach the minimum gas flow, and the equipment control current reaches the minimum control current, judging that the enthalpy value of the gas flow meets the requirement and reducing the gas flow;
when the attack angle of the detection model, the gas flow and the control current reach minimum at the same time, the judgment that the enthalpy value of the gas flow and the surface heat flow meet the requirement of the parameter range is carried out;
and/or
The fourth operation control parameter adjustment operation includes the steps of:
when the attack angle of the detection model does not reach the maximum attack angle, increasing the attack angle;
when the attack angle of the model reaches the maximum attack angle, the gas flow does not reach the maximum gas flow and the equipment control current does not reach the maximum control current, increasing the gas flow and increasing the control current;
when the attack angle of the model reaches the maximum attack angle, the gas flow reaches the maximum gas flow and the equipment control current does not reach the maximum control current, judging that the enthalpy value of the gas flow meets the requirement and increasing the control current;
when the attack angle of the model is detected to reach the maximum attack angle, the gas flow does not reach the maximum gas flow, and the equipment control current reaches the maximum control current, judging that the enthalpy value of the gas flow meets the requirement and increasing the gas flow;
when the attack angle of the detection model, the gas flow and the control current reach the maximum simultaneously, the enthalpy value of the air flow and the surface heat flow are judged to meet the requirement of the parameter range;
and/or
The fifth operation control parameter adjustment operation includes the steps of:
when the detected gas flow does not reach the minimum gas flow, reducing the gas flow;
when the detected gas flow reaches the minimum gas flow, the control current does not reach the maximum control current and the model attack angle does not reach the minimum attack angle, the control current is increased and the model attack angle is reduced;
when the detected gas flow reaches the minimum gas flow and the control current reaches the maximum control current or the model attack angle does not reach the minimum attack angle, judging that the enthalpy value of the gas flow meets the parameter range requirement of the enthalpy value of the gas flow;
and/or
The sixth operation control parameter adjustment operation includes the steps of:
when the control current and the gas flow are detected not to reach the maximum, the control current is increased and the gas flow is increased;
when the control current reaches the maximum control current and the gas flow does not reach the maximum gas flow, increasing the gas flow;
when the control current is detected not to reach the maximum control current and the gas flow reaches the maximum gas flow, the control current is increased;
when the detected gas flow and the control current reach the maximum simultaneously, the enthalpy value of the air flow is judged to meet the requirement of the parameter range;
and/or
The seventh operation control parameter adjustment operation includes the steps of:
when the model attack angle is detected not to reach the maximum attack angle and the control current is detected not to reach the minimum control current, reducing the control current and increasing the model attack angle;
when the attack angle of the model reaches the maximum attack angle, the control current does not reach the minimum control current and the gas flow does not reach the maximum gas flow, reducing the control current and increasing the gas flow;
when the detected control current reaches the minimum control current or the gas flow reaches the maximum gas flow, the enthalpy value of the gas flow and the surface heat flow are judged to meet the requirement of the parameter range;
and/or
The eighth operation control parameter adjustment operation includes the steps of:
when the model attack angle does not reach the minimum attack angle and the control current does not reach the maximum control current, increasing the control current and reducing the model attack angle;
when the attack angle of the model reaches the minimum attack angle, the control current does not reach the maximum control current and the gas flow does not reach the minimum gas flow, the control current is increased and the gas flow is reduced;
and when the detected control current reaches the maximum control current or the gas flow reaches the minimum gas flow, judging that the enthalpy value of the gas flow and the surface heat flow both meet the requirement of the parameter range.
9. An automatic debugging device for the ablation test state of a flat plate on an arc heating device comprises: at least one processor, at least one memory and a computer program stored in the memory, characterized in that the computer program realizes the method according to any one of claims 1 to 8 when the computer program is executed by the processor.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 8.
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| CN112946017B (en) | 2023-04-18 |
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