[go: up one dir, main page]

CN114813155B - Engine exhaust vector angle measurement and tail flame monitoring system - Google Patents

Engine exhaust vector angle measurement and tail flame monitoring system Download PDF

Info

Publication number
CN114813155B
CN114813155B CN202210732494.7A CN202210732494A CN114813155B CN 114813155 B CN114813155 B CN 114813155B CN 202210732494 A CN202210732494 A CN 202210732494A CN 114813155 B CN114813155 B CN 114813155B
Authority
CN
China
Prior art keywords
axis
seat
rotating
vector angle
monitoring system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210732494.7A
Other languages
Chinese (zh)
Other versions
CN114813155A (en
Inventor
黄维娜
杨华
陈鹏飞
杨斐
夏辉
苑微
张建武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Sichuan Gas Turbine Research Institute
Original Assignee
AECC Sichuan Gas Turbine Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AECC Sichuan Gas Turbine Research Institute filed Critical AECC Sichuan Gas Turbine Research Institute
Priority to CN202210732494.7A priority Critical patent/CN114813155B/en
Publication of CN114813155A publication Critical patent/CN114813155A/en
Application granted granted Critical
Publication of CN114813155B publication Critical patent/CN114813155B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00Testing of engines
    • G01M15/14Testing gas-turbine engines or jet-propulsion engines
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00Testing of engines
    • G01M15/02Details or accessories of testing apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Accessories Of Cameras (AREA)

Abstract

The application provides an engine exhaust vector angle measurement and tail flame monitoring system belongs to aeroengine complete machine experiment and test technical field, includes: the AGV base transport vehicle is used for transporting and fixing the whole system; the vibration isolation support is arranged on the AGV base transport vehicle and is used for shielding the vibration of the AGV base transport vehicle and the rack; the six-freedom-degree support is arranged on the vibration isolation support; the optical camera is arranged on the six-degree-of-freedom support, and the six-degree-of-freedom support adjusts and fixes the displacement and the rotation angle of the optical camera; and the post-processing industrial personal computer is respectively in signal connection with the AGV base transport vehicle and the optical camera and is used for processing image information acquired by the optical camera in real time and converting the image information into an engine pneumatic vector angle and reconstructing a three-dimensional tail flame field and a temperature field in real time. According to the processing scheme, the measurement precision and sensitivity are improved, the application range is wide, and the online adjustability is strong.

Description

Engine exhaust vector angle measurement and tail flame monitoring system
Technical Field
The application relates to the technical field of aircraft engine complete machine tests and tests, in particular to an engine exhaust vector angle measurement and tail flame monitoring system.
Background
In recent years, the development of air weaponry has been gradually advancing toward unmanned and stealth. Stealth is an important performance that modern and future combat airplanes must possess, and engine infrared stealth is an important component of four generations of stealth work. Adopt novel engine spray tube structure to be the important means that improves the stealthy nature of engine, compare in the axial symmetry spray tube, under the same exit area, binary vector spray tube has stronger exhaust girth, great cold is provided, the mixed cross-section of heat current, the vortex that circle square barrel formed also can strengthen the heat transfer and reduce the infrared characteristic of spray tube, and simultaneously, binary vector spray tube is because of its structural feature, develop the integrated design through with aircraft rear fuselage, can effectively improve the aerodynamic configuration of aircraft afterbody, improve the stealthy performance of aircraft, synthesize various factors, make binary vector spray tube become the preferred choice in numerous spray tube structures.
In fact, the binary vector nozzle is a brand new nozzle structure, and has numerous technical difficulties in the aspects of control systems, pneumatic performance, sealing parts, cooling design and structural strength to be overcome, so that the dynamic monitoring of the technical state of the binary nozzle is particularly important in a complete machine test, and the dynamic monitoring not only is a technical means for ensuring the test safety of an engine and a test bed, but also is an important data source and support for obtaining the performance parameters of the nozzle and optimizing and improving the nozzle structure. At present, the technical states of the spray pipes are monitored by a platform fixed camera and airborne and platform temperature, pressure, displacement and other sensors, the monitoring means is relatively backward, the response time is long, the monitoring points are few, the influence on the spray flow field of the engine is large, the increasing test monitoring requirements of the spray pipes cannot be met gradually, and new efficient monitoring means are urgently needed to supplement the current engine state monitoring system.
With the development of digital camera technology and the progress of image processing technology, non-contact non-interference optical measurement methods based on digital images are increasingly playing an important role in measuring the morphology and deformation of objects, and are increasingly applied to the fields of civil engineering, machinery, medicine, and the like. Light field digital refocusing, optical layered imaging method and image processing method based on RGB (Red Green Blue ) thermocouple thermometry are gradually developed and matured, and are gradually applied to three-dimensional flame field and temperature field reconstruction. However, since the digital camera technology imposes high environmental requirements on both the camera use environment and the object to be measured, the corresponding digital image technology has not been applied to the engine technology state monitoring.
Disclosure of Invention
In view of the above, embodiments of the present application provide an engine exhaust vector angle measurement and tail flame monitoring system, which at least partially solve the problem existing in the prior art that the technical state monitoring means for the bench engine gradually cannot meet the requirement of the binary nozzle test.
The embodiment of the application provides an engine exhaust vector angle measurement and tail flame monitoring system, includes:
the AGV base transport vehicle is used for transporting and fixing the whole system;
the vibration isolation support is arranged on the AGV base transport vehicle and is used for shielding the vibration of the AGV base transport vehicle and the rack;
the six-degree-of-freedom support is arranged on the vibration isolation support;
the optical camera is arranged on the six-degree-of-freedom support, and the six-degree-of-freedom support adjusts and fixes the displacement and the rotation angle of the optical camera;
the post-processing industrial computer, the post-processing industrial computer respectively with AGV base transport vechicle with optical camera signal connection is used for real-time processing the image information that optical camera gathered to change into engine aerodynamic vector angle and real-time reconstruction three-dimensional tail flame field and temperature field.
According to a specific implementation manner of the embodiment of the application, the six-degree-of-freedom bracket comprises a z-direction moving seat connected to the upper side of the vibration isolation support, and the z-direction moving seat performs z-direction displacement adjustment along a z axis; an x-direction moving seat is arranged on the upper side of the z-direction moving seat and performs x-direction displacement adjustment along an x axis; the y-direction moving rotating seat is arranged on the x-direction moving seat and performs y-direction displacement along a y axis and rotates and fixes around the y axis; the y-direction moving rotating seat is provided with an x-direction rotating seat, and the x-direction rotating seat rotates and is fixed around an x axis; and a z-direction rotating seat is arranged on the x-direction rotating seat and rotates and fixes around a z-axis.
According to a concrete implementation mode of this application embodiment, the z direction removes the seat including vertical connect in the first cylinder and the level of isolation bearing upside lay in flat board on the first cylinder, first cylinder for the height-adjustable of isolation bearing carries out z direction displacement adjustment.
According to a concrete implementation mode of this application embodiment, be equipped with the recess that sets up along the x axle direction on the flat board, the x direction remove the seat with recess sliding connection, the x direction removes the seat and follows the recess slides and carries out x direction displacement adjustment.
According to a specific implementation manner of the embodiment of the application, the y-direction moving and rotating seat comprises a second cylinder, the second cylinder vertically penetrates through the x-direction moving seat, and the second cylinder moves along the y-axis on the x-direction moving seat and rotates around the y-axis; the second cylinder with the junction of x direction removal seat is equipped with the external screw thread, through the nut with the external screw thread cooperation is right y direction removes the roating seat and fixes.
According to a specific implementation manner of the embodiment of the application, the x-direction rotating seat comprises a base arranged on the y-direction moving rotating seat, the base is connected with a vertically-arranged x-direction rotating disc through a rotating shaft, the axis of the rotating shaft is parallel to an x-axis, and the x-direction rotating disc rotates around the x-axis by taking the rotating shaft as a center; the edge of x direction rolling disc is equipped with convex through-hole, be equipped with x direction rotation locking pin in the convex through-hole, the afterbody that x direction rotated the locking pin with the base is connected, x direction rotation locking pin is right the position of x direction rolling disc is fixed.
According to a specific implementation manner of the embodiment of the application, the z-direction rotating base comprises a z-direction rotating disc which is connected to the upper side of the x-direction rotating disc and horizontally arranged, the z-direction rotating disc rotates around a z axis, a z-direction rotating locking pin is arranged on the circumferential side face of the z-direction rotating disc, the z-direction rotating locking pin fixes the position of the z-direction rotating disc, and the optical camera is arranged on the z-direction rotating disc.
According to a concrete implementation mode of this application embodiment, the y direction removes the roating seat and carries out 360 degrees rotations and fixed around the y axle, the x direction roating seat carries out 180 degrees rotations and fixes around the x axle, the z direction roating seat carries out 360 degrees rotations and fixes around the z axle.
According to a concrete implementation mode of this application embodiment, the vibration isolation support includes interchangeable damping spring support and hydraulic pressure pull rod, hydraulic pressure pull rod's one end with interchangeable damping spring support connects, hydraulic pressure pull rod's the other end is connected with AGV base transport vechicle, interchangeable damping spring support's the even interchangeable damping module of having laid in bottom, interchangeable damping spring support passes through interchangeable damping module with AGV base transport vechicle is connected.
According to a specific implementation manner of the embodiment of the application, a non-contact non-interference optical measurement module based on digital images, an optical field digital refocusing and optical layering imaging module based on optical field digital refocusing and an image post-processing module based on RGB thermocouple thermometry are arranged in the post-processing industrial personal computer.
Advantageous effects
According to the engine exhaust vector angle measurement and tail flame monitoring system in the embodiment of the application, the six-freedom-degree support is arranged, so that the continuous fine adjustment and fixation of six-direction freedom degrees of an optical camera can be realized, and the calibration of a light field camera is well matched; the vibration isolation support can effectively shield vibration from the rack and an engine, avoid the influence of the vibration of the rack on the measurement precision of the camera and ensure the measurement effect of the camera; the AGV base transport vehicle can realize remote self-carrying and fixing of the monitoring system, the dynamic measurement position of the light field camera can be adjusted and recalibrated during testing under necessary conditions, and the monitoring position of the system can be reasonably adjusted according to the engine test conditions.
The non-contact non-interference optical measurement method based on digital images and the image processing program based on light field digital refocusing, optical layered imaging method and RGB thermocouple thermometry can monitor the pneumatic vector angle of the nozzle in real time and reconstruct the three-dimensional tail flame field and temperature field; the engine exhaust vector angle measurement and tail flame monitoring system based on image processing has no influence on an engine jet flow field, and has the advantages of wide measurement range, high measurement precision, corresponding sensitivity, strong online adjustability and wide application range.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an engine exhaust vector angle measurement and tail flame monitoring system according to an embodiment of the invention;
FIG. 2 is a block diagram of a six degree-of-freedom support according to one embodiment of the present invention;
FIG. 3 is a block diagram of an x-direction rotating base and a z-direction rotating base according to an embodiment of the present invention;
fig. 4 is a structural view of an isolation mount according to an embodiment of the present invention.
In the figure: 1. an optical camera; 2. a six degree of freedom support; 2-1, z-direction rotating base; 2-1-1, rotating the disc in the z direction; 2-1-2, rotating the locking pin in the z direction; 2-2, rotating the base in the x direction; 2-2-1, a base; 2-2-2, rotating the disc in the x direction; 2-2-3, a rotating shaft; 2-2-4, rotating the locking pin in the x direction; 2-3, moving the rotating seat in the y direction; 2-4, moving the seat in the x direction; 2-5, a nut; 2-6, moving the seat in the z direction; 3. a vibration isolation support; 3-1, a replaceable damping spring support; 3-2, a hydraulic pull rod; 3-3, a replaceable damping module; 4. an AGV base transport vehicle; 5. and (4) post-processing an industrial personal computer.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following embodiments of the present application are described by specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The embodiment of the application provides an engine exhaust vector angle measurement and tail flame monitoring system, which is described in detail below with reference to fig. 1 to 4.
Referring to fig. 1, an engine exhaust vector angle measurement and tail flame monitoring system provided in the embodiment of the present application specifically includes an AGV base transport Vehicle 4 (Automated Guided Vehicle), a vibration isolation support 3, a six-degree-of-freedom support 2, an optical camera 1, and an aftertreatment industrial personal computer 5, where the AGV base transport Vehicle 4 can remotely control 360 degrees to self-travel and is used for transporting and fixing the whole system; the vibration isolation support 3 is arranged on the AGV base transport vehicle 4, and the vibration isolation support 3 can effectively shield the vibration of the AGV base transport vehicle 4 and the rack, so that the imaging effect of the optical camera 1 is ensured; the six-freedom-degree support 2 is arranged on the vibration isolation support 3; the optical camera 1 is arranged on the six-degree-of-freedom support 2, the optical camera 1 adopts a binocular system-based non-contact non-interferometric optical camera, the six-degree-of-freedom support 2 adjusts and fixes the displacement and the rotation angle of the optical camera 1, and particularly, the continuous adjustment and fixation of the displacement and the rotation angle of the camera in three directions can be realized so as to perform optical calibration by matching with the position and angle adjustment of the optical camera 1; the post-processing industrial personal computer 5 is respectively in signal connection with the AGV base transport vehicle 4 and the optical camera 1, remote control can be carried out in the test process to achieve online field angle adjustment of the optical camera 1, data collected by the optical camera 1 are transmitted to the post-processing industrial personal computer 5 through a camera signal line, the image information collected by the optical camera 1 is processed in real time through the post-processing industrial personal computer 5, and the image information is converted into an engine pneumatic vector angle and a three-dimensional tail flame field and a temperature field are reconstructed in real time.
Specifically, a non-contact non-interference optical measurement module based on digital images, an optical field digital refocusing and optical layered imaging module based on light field digital refocusing and an image post-processing module based on an RGB thermocouple thermometry are arranged in the post-processing industrial personal computer 5, so that the tail flame aerodynamic angle can be measured in real time, and the three-dimensional tail flame and the temperature field thereof can be reconstructed in real time. The system provides a means for monitoring the technical state of the engine by the test bed, and provides massive test graphs and data support for the design and improvement of the binary spray pipe.
The system has low requirements on the use environment, the camera has six degrees of freedom and is continuously adjustable, the vibration isolation effect of the system is good, the AGV can remotely control 360-degree self-walking, the tail flame aerodynamic angle can be measured in real time by a non-contact non-interference optical measurement method based on digital images and an image processing method based on light field digital refocusing, an optical layered imaging method and an RGB thermocouple temperature measurement method, the three-dimensional tail flame and the temperature field thereof are reconstructed in real time, the monitoring means of the technical state of the engine by the rack is improved, and massive test graphs and data support are provided for the design and improvement of a binary spray pipe.
In this embodiment, the AGV base transport 4 is a transport vehicle equipped with an electromagnetic or optical automatic guide device, capable of traveling along a predetermined guide path, and having a vehicle programming and parking selecting device, a safety protection function, and various transfer functions, and a general AGV transport vehicle is used without any particular limitation in this application. The remote self-carrying and fixing of the monitoring system can be realized, the dynamic measurement position of the light field camera 1 can be adjusted and recalibrated during testing under necessary conditions, and the monitoring position of the system can be reasonably adjusted according to the engine test condition.
In one embodiment, referring to fig. 2, the six-degree-of-freedom support 2 comprises a z-direction moving base 2-6 connected to the upper side of the vibration isolation support 3, and the z-direction moving base 2-6 performs z-direction displacement adjustment along the z-axis; the upper side of the z-direction moving seat 2-6 is provided with an x-direction moving seat 2-4, and the x-direction moving seat 2-4 carries out x-direction displacement adjustment along an x axis; the x-direction moving seat 2-4 is provided with a y-direction moving rotating seat 2-3, and the y-direction moving rotating seat 2-3 carries out y-direction displacement along the y axis and rotates and fixes around the y axis; the y-direction moving rotating seat 2-3 is provided with an x-direction rotating seat 2-2, and the x-direction rotating seat 2-2 rotates and is fixed around an x axis; the x-direction rotating seat 2-2 is provided with a z-direction rotating seat 2-1, and the z-direction rotating seat 2-1 rotates and is fixed around a z-axis. Therefore, the adjustment direction of the six-degree-of-freedom bracket in the embodiment includes displacement in the 3-axis direction and rotation around the 3-axis direction, so that continuous fine adjustment and fixation of six-direction degrees of freedom of the optical camera 1 can be realized, and calibration of the optical camera 1 can be well matched.
Further, the z-direction moving seat 2-6 comprises a first cylinder vertically connected to the upper side of the vibration isolation support 3 and a flat plate horizontally laid on the first cylinder, the height of the first cylinder relative to the vibration isolation support 3 is adjustable, that is, the first cylinder can move up and down relative to the vibration isolation support 3 to perform z-direction displacement adjustment, and the flat plate on the first cylinder is used for installing the x-direction moving seat 2-4, so that the x-direction moving seat 2-4 can move on the z-direction moving seat 2-6 conveniently.
Furthermore, the x-direction moving seat 2-4 is arranged to be a flat plate with holes, through holes in the flat plate with holes are used for installing the y-direction moving rotating seat 2-3, and the y-direction moving rotating seat 2-3 can move in the through holes in the y-direction and rotate around the y-axis. The plane of the perforated flat plate is parallel to the x axis, the flat plate is provided with a groove arranged along the x axis direction, the perforated flat plate is connected with the groove in a sliding mode, and the perforated flat plate is perpendicular to the flat plate, so that the x-direction moving seat 2-4 can slide along the groove to adjust the x-direction displacement.
In one embodiment, the y-direction moving and rotating base 2-3 is provided as a second cylinder which vertically penetrates through the x-direction moving base, and the second cylinder moves along the y-direction on the x-direction moving base and rotates around the y-axis; specifically, the second cylinder is inserted into a through hole of the perforated flat plate, an external thread is arranged at the joint of the second cylinder and the x-direction moving seat 2-4, and the y-direction moving rotating seat 2-3 is fixed on two sides of the perforated flat plate through the matching of a nut 2-5 and the external thread.
Further, referring to fig. 3, the x-direction rotating base 2-2 includes a base 2-2-1 disposed on the y-direction moving rotating base 2-3, the base 2-2-1 is connected to a vertically disposed x-direction rotating disc 2-2-2 through a rotating shaft 2-2-3, a plane of the x-direction rotating disc 2-2-2 is perpendicular to the x-axis, and an axis of the rotating shaft 2-2-3 is parallel to the x-axis, so that the x-direction rotating disc 2-2-2 rotates around the x-axis around the rotating shaft 2-2-3; in order to fix the x-direction rotating seat 2-2, the edge of the x-direction rotating disc 2-2-2 is provided with a circular arc through hole, an x-direction rotating locking pin 2-2-4 is arranged in the circular arc through hole, the head of the x-direction rotating locking pin 2-2-4 is clamped outside the circular arc through hole, and the tail of the x-direction rotating locking pin 2-2-4 is connected with the base 2-2-1. When the position of the X-direction rotating disc is adjusted, the X-direction rotating locking pin 2-2-4 can be adjusted to be loose, so that the X-direction rotating disc 2-2-2 can rotate freely, and when the X-direction rotating disc 2-2-2 is adjusted to be in place, the X-direction rotating locking pin 2-2-4 is screwed down, so that the X-direction rotating locking pin 2-2-4 can fix the position of the X-direction rotating disc 2-2-2.
Further, referring to fig. 3, the z-direction rotating base 2-1 includes a horizontally disposed z-direction rotating disk 2-1-1 connected to an upper side of the x-direction rotating disk 2-2-2, the z-direction rotating disk 2-1-1 rotates around a z-axis, a z-direction rotation locking pin 2-1-2 is disposed on a circumferential side surface of the z-direction rotating disk 2-1-1, when a position of the z-direction rotating disk 2-1-1 is adjusted, the z-direction rotation locking pin 2-1-2 fixes a position of the z-direction rotating disk 2-1-1, and the optical camera 1 is disposed on the z-direction rotating disk 2-1-1.
For the adjustment angle of each rotating seat, the y-direction moving rotating seat 2-3 rotates and fixes for 360 degrees around the y-axis, the x-direction rotating seat 2-2 rotates and fixes for 180 degrees around the x-axis, and the z-direction rotating seat 2-1 rotates and fixes for 360 degrees around the z-axis.
In one embodiment, referring to fig. 4, the vibration isolation mount 3 is further defined, the vibration isolation mount 3 comprises an interchangeable damping spring mount 3-1 and a hydraulic pull rod 3-2, and the hydraulic pull rod 3-2 can support and fix the interchangeable damping spring mount 3-1 on one hand and can further absorb vibration from the AGV base transport cart 4 on the other hand, so that the vibration isolation performance is improved. Specifically, the hydraulic pull rod 3-2 is arranged in an inclined mode, one end of the hydraulic pull rod 3-2 is connected with the replaceable damping spring support 3-1, the other end of the hydraulic pull rod 3-2 is connected with the AGV base transport vehicle 4, the replaceable damping modules 3-3 are evenly distributed at the bottom of the replaceable damping spring support 3-1, the replaceable damping modules 3-3 are connected with the top cover of the AGV base transport vehicle 4, and the replaceable damping spring support 3-1 is connected with the AGV base transport vehicle 4 through the replaceable damping modules 3-3.
Preferably, the number of the replaceable damping modules 3-3 is four, the replaceable damping modules are respectively arranged at four corners of the bottom of the replaceable damping spring support 3-1, and the replaceable damping spring support can shield vibration with different frequencies by replacing modules with different damping or modules with different damping combinations, so that the replaceable damping spring support has a stable supporting effect.
The engine exhaust vector angle measurement and tail flame monitoring system provided by the invention is developed and applied based on the test monitoring requirements of the binary vector nozzle and a digital image processing method, the system is stable in work, has low requirements on the use environment of a camera and the state of a test piece, is sensitive in response and high in measurement precision, can dynamically monitor the pneumatic vector angle of the binary nozzle in real time and rebuild the three-dimensional tail flame length and temperature field, and improves the monitoring of the technical state of the nozzle by a rack.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. An engine exhaust vector angle measurement and tail flame monitoring system, comprising:
the AGV base transport vehicle is used for transporting and fixing the whole system;
the vibration isolation support is arranged on the AGV base transport vehicle and is used for shielding the vibration of the AGV base transport vehicle and the rack;
the six-degree-of-freedom support is arranged on the vibration isolation support and comprises a z-direction moving seat connected to the upper side of the vibration isolation support, and the z-direction moving seat performs z-direction displacement adjustment along a z axis; an x-direction moving seat is arranged on the upper side of the z-direction moving seat and performs x-direction displacement adjustment along an x axis; the y-direction moving rotating seat is arranged on the x-direction moving seat and performs y-direction displacement along a y axis and rotates and fixes around the y axis; an x-direction rotating seat is arranged on the y-direction moving rotating seat, and rotates and fixes around an x axis; a z-direction rotating seat is arranged on the x-direction rotating seat and rotates and is fixed around a z axis;
the optical camera is arranged on the six-degree-of-freedom support, and the six-degree-of-freedom support adjusts and fixes the displacement and the rotation angle of the optical camera;
the post-processing industrial computer, the post-processing industrial computer respectively with AGV base transport vechicle with optical camera signal connection is used for real-time processing the image information that optical camera gathered to change into engine aerodynamic vector angle and real-time reconstruction three-dimensional tail flame field and temperature field.
2. The engine exhaust vector angle measurement and tail flame monitoring system of claim 1, wherein the z-direction moving mount comprises a first cylinder vertically attached to an upper side of the vibration isolation mount and a flat plate horizontally laid on the first cylinder, the first cylinder being height adjustable relative to the vibration isolation mount for z-direction displacement adjustment.
3. The engine exhaust vector angle measurement and tail flame monitoring system of claim 2, wherein the plate is provided with a groove arranged along an x-axis direction, the x-direction moving seat is slidably connected with the groove, and the x-direction moving seat slides along the groove to perform x-direction displacement adjustment.
4. The engine exhaust vector angle measurement and tail flame monitoring system of claim 1, wherein the y-direction moving carousel includes a second cylinder that extends perpendicularly through the x-direction moving carriage, the second cylinder moving in a y-direction on the x-direction moving carriage and rotating about the y-axis; the second cylinder with the junction of x direction removal seat is equipped with the external screw thread, through the nut with the external screw thread cooperation is right y direction removes the roating seat and fixes.
5. The engine exhaust vector angle measurement and tail flame monitoring system of claim 1, wherein the x-direction rotating base comprises a base arranged on the y-direction moving rotating base, and an x-direction rotating disc vertically arranged is connected to the base through a rotating shaft, the axis of the rotating shaft is parallel to an x-axis, and the x-direction rotating disc rotates around the x-axis by taking the rotating shaft as a center; the edge of x direction rolling disc is equipped with convex through-hole, be equipped with x direction rotation locking pin in the convex through-hole, the afterbody that x direction rotated the locking pin with the base is connected, x direction rotation locking pin is right the position of x direction rolling disc is fixed.
6. The engine exhaust vector angle measurement and flame tail monitoring system of claim 5, wherein the z-direction rotating mount comprises a horizontally disposed z-direction rotating disk connected to an upper side of the x-direction rotating disk, the z-direction rotating disk rotates about a z-axis, a circumferential side of the z-direction rotating disk is provided with a z-direction rotation locking pin, the z-direction rotation locking pin fixes a position of the z-direction rotating disk, and the optical camera is disposed on the z-direction rotating disk.
7. The engine exhaust vector angle measurement and tail flame monitoring system of any of claims 1-6, wherein the y-direction moving swivel performs 360 degree rotation and fixation about a y-axis, the x-direction swivel performs 180 degree rotation and fixation about an x-axis, and the z-direction swivel performs 360 degree rotation and fixation about a z-axis.
8. The engine exhaust vector angle measurement and tail flame monitoring system of claim 1, characterized in that the vibration isolation support comprises an interchangeable damping spring support and a hydraulic pull rod, one end of the hydraulic pull rod is connected with the interchangeable damping spring support, the other end of the hydraulic pull rod is connected with an AGV base transport vehicle, an interchangeable damping module is uniformly distributed at the bottom of the interchangeable damping spring support, and the interchangeable damping spring support is connected with the AGV base transport vehicle through the interchangeable damping module.
9. The engine exhaust vector angle measurement and tail flame monitoring system of claim 1, wherein a non-contact non-interference optical measurement module based on digital images, a light field digital refocusing and optical layered imaging module based on light field digital refocusing and an image post-processing module based on RGB thermocouple thermometry are disposed within the post-processing industrial personal computer.
CN202210732494.7A 2022-06-27 2022-06-27 Engine exhaust vector angle measurement and tail flame monitoring system Active CN114813155B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210732494.7A CN114813155B (en) 2022-06-27 2022-06-27 Engine exhaust vector angle measurement and tail flame monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210732494.7A CN114813155B (en) 2022-06-27 2022-06-27 Engine exhaust vector angle measurement and tail flame monitoring system

Publications (2)

Publication Number Publication Date
CN114813155A CN114813155A (en) 2022-07-29
CN114813155B true CN114813155B (en) 2022-10-25

Family

ID=82521815

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210732494.7A Active CN114813155B (en) 2022-06-27 2022-06-27 Engine exhaust vector angle measurement and tail flame monitoring system

Country Status (1)

Country Link
CN (1) CN114813155B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104797918A (en) * 2012-08-23 2015-07-22 西门子能量股份有限公司 System and method for on-line optical monitoring within a gas turbine combustor section
CN105606222A (en) * 2015-09-06 2016-05-25 东南大学 Flame three-dimensional temperature field measurement imaging device, measuring device and measuring method
CN107421626A (en) * 2017-07-18 2017-12-01 华南理工大学 Flexible arm space oscillations specificity analysis apparatus and method based on polyphaser
CN109520739A (en) * 2018-12-20 2019-03-26 中国航发四川燃气涡轮研究院 A kind of engine switching accurate posture adjustment mounting platform of casing
CN110778861A (en) * 2019-10-29 2020-02-11 合肥工业大学 Binocular camera support capable of achieving multi-degree-of-freedom adjustment
CN113074946A (en) * 2021-03-25 2021-07-06 北京理工大学 Three-dimensional cross-interface measurement system
CN214149838U (en) * 2021-02-23 2021-09-07 上海交通大学 Comprehensive test bed for turbojet engine and vectoring nozzle
CN114136644A (en) * 2021-10-20 2022-03-04 中国航发四川燃气涡轮研究院 Device and method for measuring resistance of air inlet channel in aircraft engine ground platform test
CN114459769A (en) * 2022-04-14 2022-05-10 中国空气动力研究与发展中心低速空气动力研究所 Small-size turbojet engine ground thrust vector calibration device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2799030B1 (en) * 1999-09-24 2002-01-04 Ge Medical Syst Sa METHOD FOR RECONSTRUCTING A THREE-DIMENSIONAL IMAGE OF AN ELEMENT OF INTEREST, FOR EXAMPLE A VASCULAR EXPANDER INSERTED IN A VESSEL
US7274456B2 (en) * 2004-05-12 2007-09-25 Pioneer Hi-Bred International, Inc. Non-destructive single seed or several seeds NIR analyzer and method
EP2871452B1 (en) * 2013-11-12 2019-05-01 Rebellion Photonics, Inc. Divided-aperture infra-red spectral imaging system
CN104236879A (en) * 2014-08-25 2014-12-24 合肥工业大学 Engine blade dynamic and static detecting method based on machine vision
CN111017256B (en) * 2019-12-19 2023-04-14 中国特种飞行器研究所 Pneumatic lift resistance test device with controllable and adjustable aircraft model pitch angle
CN113588277B (en) * 2021-08-10 2022-05-17 东北大学 A vibration measuring device and its digital twin method for the multi-size outline rotor of an engine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104797918A (en) * 2012-08-23 2015-07-22 西门子能量股份有限公司 System and method for on-line optical monitoring within a gas turbine combustor section
CN105606222A (en) * 2015-09-06 2016-05-25 东南大学 Flame three-dimensional temperature field measurement imaging device, measuring device and measuring method
CN107421626A (en) * 2017-07-18 2017-12-01 华南理工大学 Flexible arm space oscillations specificity analysis apparatus and method based on polyphaser
CN109520739A (en) * 2018-12-20 2019-03-26 中国航发四川燃气涡轮研究院 A kind of engine switching accurate posture adjustment mounting platform of casing
CN110778861A (en) * 2019-10-29 2020-02-11 合肥工业大学 Binocular camera support capable of achieving multi-degree-of-freedom adjustment
CN214149838U (en) * 2021-02-23 2021-09-07 上海交通大学 Comprehensive test bed for turbojet engine and vectoring nozzle
CN113074946A (en) * 2021-03-25 2021-07-06 北京理工大学 Three-dimensional cross-interface measurement system
CN114136644A (en) * 2021-10-20 2022-03-04 中国航发四川燃气涡轮研究院 Device and method for measuring resistance of air inlet channel in aircraft engine ground platform test
CN114459769A (en) * 2022-04-14 2022-05-10 中国空气动力研究与发展中心低速空气动力研究所 Small-size turbojet engine ground thrust vector calibration device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"单边膨胀矢量喷管气动和红外特性研究";张少丽 等;《航空学报》;20121119;第33卷(第8期);第1406-1416页 *
Simultaneous 10 kHz three-dimensional CH2O and tomographic PIV measurements in a lifted partially-premixed jet flame;B. Zhou, T. Li, J.H. Frank et al.;《Proceedings of the Combustion Institute》;20211231;第38卷(第1期);Pages 1675-1683 *

Also Published As

Publication number Publication date
CN114813155A (en) 2022-07-29

Similar Documents

Publication Publication Date Title
Ding et al. Research progress of laser triangulation on-machine measurement technology for complex surface: A review
CN101205662B (en) Robot sewing system for three-dimensional composite material perform
CN100587445C (en) Vehicle wheel alignment check method and system
CN106441117B (en) Turntable error detection method based on multi-station etalon laser tracking system
CN108267095A (en) The bilateral dislocation differential confocal detection method of free form surface pattern and device
CN107817005A (en) The integrated flexible experimental method of monocular pose measurement accuracy evaluation
CN206944946U (en) High-speed cutting deformation measuring device based on DIC technologies and infrared camera technology
US10788462B2 (en) Dual function non-destructive inspection apparatus and method
CN114413788B (en) Part surface pattern detection method based on binocular vision and inverse model reconstruction
CN112960137A (en) Flexible adjusting and positioning device for aviation high-temperature conduit and novel manufacturing process
CN110793966A (en) Automatic detection device and detection method for pin reduction of contacts of aviation electrical connector
CN112318107A (en) A depth camera-based automatic assembly alignment measurement method for large parts and shafts
CN114813155B (en) Engine exhaust vector angle measurement and tail flame monitoring system
Aliakbari et al. An adaptive computer-aided path planning to eliminate errors of contact probes on free-form surfaces using a 4-DOF parallel robot CMM and a turn-table
EP0884574B1 (en) Device and procedure for testing tyres
CN1885097A (en) Method for adjusting aspherical detection optical system by computer
CN111735410A (en) A measuring device and measuring method for bell-shaped spherical shell parts
DE102015009138A1 (en) Ball shape measuring method and device
CN111023992A (en) Cross-section curve feature detection method based on line structured light and its application
CN114964137A (en) Airplane control plane deflection angle testing system and method based on binocular image acquisition
CN2914032Y (en) Optics non-contact type three-dimensional shaped measuring instrument
CN106767437B (en) Online 3D size measuring device and method for PCB component
CN110340728A (en) Quality Control System and Method for Hole Group Processing in Tractor Manufacturing Process
CN206281460U (en) A kind of ray machine of non-standard endoporus mixes many spot projection self-calibration inside diameter measurement systems
CN115900828B (en) A method and system for fine detection of surface condition of rotating body component

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant