CN111174651A - Test system and test method for dynamic explosion power field of explosion-killing grenade - Google Patents
Test system and test method for dynamic explosion power field of explosion-killing grenade Download PDFInfo
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- CN111174651A CN111174651A CN202010023072.3A CN202010023072A CN111174651A CN 111174651 A CN111174651 A CN 111174651A CN 202010023072 A CN202010023072 A CN 202010023072A CN 111174651 A CN111174651 A CN 111174651A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
- F42B35/02—Gauging, sorting, trimming or shortening cartridges or missiles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/14—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force of explosions; for measuring the energy of projectiles
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Abstract
本发明实施例提供一种杀爆榴弹的动爆威力场的测试系统及测试方法，属于毁伤评估技术领域。所述杀爆榴弹的动爆威力场的测试系统包括：触发靶，与弹道炮相对设置，所述弹道炮用于发射所述杀爆榴弹；扇形板，设置于所述触发靶的一侧，并朝背离所述触发靶的方向凸出，所述杀爆榴弹爆炸后产生的破片侵彻所述扇形板；以及冲击波压力检测装置，设置于所述触发靶的另一侧，用于检测由所述杀爆榴弹爆炸后的冲击波产生的压力信号。本申请提供的技术方案，能够检测杀爆榴弹在动爆状态下的包括破片威力场和冲击波威力场的分布规律，包括破片飞散情况和冲击波超压分布情况等。
Embodiments of the present invention provide a testing system and a testing method for a dynamic explosion power field of an explosive-killing grenade, which belong to the technical field of damage assessment. The test system for the dynamic explosion power field of the anti-explosive grenade includes: a trigger target, which is arranged opposite to the ballistic gun, and the ballistic cannon is used to launch the anti-explosive grenade; a fan-shaped plate is arranged on one side of the trigger target, And protrude in the direction away from the trigger target, the fragments generated after the explosion of the anti-explosive grenade penetrate the sector plate; and a shock wave pressure detection device is arranged on the other side of the trigger target for detecting the The pressure signal generated by the shock wave after the explosion of the anti-explosive grenade. The technical solution provided by the application can detect the distribution law of the fragment power field and the shock wave power field of the explosive grenade in the dynamic explosion state, including the fragmentation and shock wave overpressure distribution.
Description
Technical Field
The invention relates to the technical field of damage assessment, in particular to a test system and a test method for a dynamic explosion power field for killing an explosion grenade.
Background
The explosion-killing grenade is a shell which kills or destroys a target by fragments and shock waves generated after the explosion of explosives, is the most basic bullet species used by modern artillery, and kills or explodes by fragments and shock waves generated after the explosion of the bullets.
The acquisition of the power field of the explosion-killing grenade can provide important support for the structural design, performance evaluation and combat use of the explosion-killing grenade; at present, a force field for killing the grenades is mainly obtained by a static test, the flying rule of fragments of a moving projectile body after explosion is researched by velocity vector synthesis on the basis of the static explosion test, and as the flying speed of thousands of fragments is difficult to accurately give out by the test, a fragment dynamic flying belt cannot be accurately obtained by the method of combining the static explosion test with theoretical analysis. The influence of the tail end speed of the ammunition on the parameters of the power field such as fragment scattering belt and the like is difficult to truly reflect in the static explosion test. Therefore, acquisition of a power field of a grenade for killing the terminal real ballistic characteristics has become a technical problem to be solved urgently by researchers in the field at present.
In many types of explosion grenades, the large-caliber explosion grenades are different from accurate percussion ammunition, the shooting precision is low, the characteristic determines that the landing point is difficult to accurately predict like the accurate guidance ammunition, and a power test target and a sensor are arranged nearby the large-caliber explosion grenades to test an ammunition power field reflecting the true ballistic falling speed. Therefore, how to obtain the dynamic explosive power field of the large-caliber grenade through a simulation test has a practical demand for acquiring the fragment scattering zone of the real ballistic environment, and the technical problem to be solved is urgent.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a system and a method for testing a dynamic explosion power field of an explosion-killing grenade, which are used to solve one or more of the above technical problems.
In order to achieve the above object, an embodiment of the present invention provides a trigger target, which is disposed opposite to a ballistic cannon for launching the blast grenade; the sector plate is arranged on one side of the trigger target and protrudes towards the direction departing from the trigger target, and fragments generated after the explosion of the explosion-killing grenade penetrate through the sector plate; and the shock wave pressure detection device is arranged on the other side of the trigger target and is used for detecting a pressure signal generated by the shock wave generated after the explosion of the explosion-killing grenade.
Optionally, the system further comprises an image acquisition unit, configured to acquire the image of the action process of the detonation grenade to obtain the detonation position and the detonation attitude of the detonation grenade.
Optionally, the system further comprises a speed measuring radar for detecting the target collision speed of the detonation grenade.
Optionally, the shock wave pressure detection device includes at least three wall pressure sensor, with the trigger target is the center, the trigger target extremely the direction of ballistic gun is 0 phase place, and the clockwise is the positive direction, wall pressure sensor sets up in 45 to 135 regional different angles departments.
Optionally, the shock wave pressure detection device includes eighteen wall surface pressure sensors, the eighteen wall surface pressure sensors are three paths, six wall surface pressure sensors in each path are separated at preset intervals, and the corresponding angles of the three paths are 45 °, 90 ° and 135 ° respectively.
Optionally, the sector plate includes 15 pine targets end to end, the sector plate is for using trigger target center is the centre of a circle, and the radius is the semicircle of 8 meters, wherein, the height of pine target is 4.3 meters, and the width is 1.6 meters, and thickness is no less than 25 millimeters, just the pine target orientation the face of triggering the target is carved with the mark line, the mark line be used for with the pine target is cut apart into 43 x 16 grids.
Optionally, the material of triggering the target is dry pine, and is highly for 1 meter, and the width is 1 meter, and thickness is for being no less than 300 millimeters, the center of triggering the target is apart from the ground height and is 2 meters.
Correspondingly, the embodiment of the invention also provides a test method of the dynamic explosion power field of the explosion-killing grenade, the test system of the dynamic explosion power field of the explosion-killing grenade is adopted to carry out the explosion-killing grenade test, and the test method comprises the following steps: determining the distribution rate of fragments according to the total number of fragments on a sector plate after the explosion of the explosion grenade and the initial position of the fragments on the sector plate; and determining a fragment dynamic dispersion angle according to the distribution rate of the fragments, and taking an included angle between the central line of the fragment dynamic dispersion angle and the axis of the explosion grenade as a fragment dynamic dispersion direction angle.
Optionally, the test method includes: and determining the fragment penetration rate according to the total number of fragments on the sector plate and the number of perforated fragments after the explosion of the explosion grenade.
Optionally, the test method further includes determining the overpressure peak value of the shock wave at the same radial distance by the following formula:
wherein, Δ PRiRepresenting the same radial distance RiThe overpressure peak value of the upper shock wave, n represents the same radial distance RiNumber of wall sensors arranged thereon, Δ PRijRepresenting the same radial distance RiThe surge overpressure peak obtained by each wall sensor.
Through the technical scheme, the power field distribution rule including the fragment power field and the shock wave power field of the explosion-killing grenade in the dynamic explosion state can be detected, the fragment scattering condition, the shock wave distribution condition and the like are included, and important data support can be provided for structural design, performance evaluation and combat use of the explosion-killing grenade.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic diagram of a test system of a dynamic power field of a detonating grenade killing device provided by the embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The embodiment of the invention provides a test system for a dynamic explosion power field of an explosion-killing grenade, which comprises: a trigger target arranged opposite to a ballistic cannon for launching the detonation grenade; the fan-shaped plate is arranged on one side of the trigger target and protrudes towards the direction departing from the trigger target; and the shock wave pressure detection device is arranged on the other side of the trigger target.
When a dynamic explosion power field test of the explosion-killing grenade is carried out, the explosion-killing grenade launched by the ballistic gun explodes when touching the trigger target, fragments generated after the explosion of the explosion-killing grenade penetrate through the sector plate, and air fluctuation generated by shock waves generated after the explosion of the explosion-killing grenade can be detected by the shock wave pressure detection device.
The dynamic power field test system for the grenade can detect the power field distribution rules including the fragment power field and the shock wave power field of the grenade in the dynamic explosion state, including fragment scattering conditions, shock wave distribution conditions and the like, and can provide important data support for structural design, performance evaluation and combat use of the grenade.
In some optional embodiments, the test system for dynamic bursting power field of the grenade may further include a speed radar for tracking the grenade and detecting the target impact speed of the grenade, and the speed radar may be installed above the ballistic cannon or placed behind the ballistic cannon. The specific installation position of the speed measuring radar can be set according to actual requirements.
In some optional embodiments, the system for testing the dynamic detonation power field of the detonation grenade may further include an image acquisition unit, and the image acquisition unit is used for acquiring dynamic images of the detonation grenade during the action process so as to determine the detonation position and the posture of the detonation grenade.
Alternatively, the image capturing unit may be disposed at a position opposite to the trigger target. Further, before starting the test, the position of the image acquisition unit may be adjusted so that the trigger target is the center of the image acquired by the image acquisition unit.
Optionally, the image acquisition unit may be a high-speed video recorder or a high-speed camera, and may acquire an image or a video of a fast-moving bomb.
Furthermore, considering that flying fragments and shock waves can be generated when the explosion grenade is killed, in order to avoid damaging the image acquisition unit, a shelter can be arranged between the image acquisition unit and the trigger target, and in order to protect the lens of the image acquisition unit, bulletproof glass can be placed in front of the lens. The distance between the bunker and the trigger target, the thickness of the bulletproof glass and other parameters can be set automatically according to the actual explosion-killing grenade model number, and are not limited to fixed values.
The information acquired by the image acquisition unit can be used for observing the action process of the explosion-killing grenade and verifying the calculation result of the related parameters according to the action process.
In some alternative embodiments, the material of both the trigger target and the sector plate may be pine.
In some alternative embodiments, the sector plates may be assembled from multiple pine targets, for example, 15 pine targets may be used end to form a sector plate. In order to accurately determine the fragment dispersion rule of the explosion-killing grenade, the sector plate is required to be a semicircular arc taking the center of the trigger target as the center of a circle.
Optionally, in order to facilitate subsequent fragment distribution statistics and the like, a mark is required on the side of the pine target facing the trigger target, for example, a grid is used for marking, and each table of each pine target is marked, so that the damaged pine target can be restored in situ after the test is completed.
Optionally, the radius of the semicircular arc formed by the sector plates and the thickness of the selected pine target can be set by a tester according to test requirements and the type of the explosion-killing grenade.
In some optional embodiments, the shock wave pressure detection apparatus provided in the embodiments of the present invention includes wall pressure sensors, and in order to determine pressures in different spaces during the explosion of the grenade, a plurality of wall pressure sensors may be selectively disposed and respectively located at arcs whose radii are preset values and whose centers are trigger targets.
For example, since the sector plate is already located on one side of the target, the wall pressure sensor may be disposed on the other side of the target.
For convenience of description, in this embodiment of the present invention, it is specified that the trigger target is centered and the direction from the trigger target to the ballistic gun is 0 ° in phase.
In the case where three wall pressure sensors are employed, they may be disposed at different positions, for example, 45 °, 90 °, and 135 °, within the sector area corresponding to 45 ° to 135 °.
Furthermore, a plurality of wall surface pressure sensors can be selected and arranged at the positions corresponding to the same radial distance with the triggering target as the center, and under the condition that the number of the selected wall surface pressure sensors is enough, the wall surface sensors can be arranged at different radial distances at the same angle according to a certain rule. For example, 18 wall pressure sensors can be selected and divided into three paths, the corresponding angles of the three paths can be 45 °, 90 ° and 135 ° respectively, for each path, 6 wall pressure sensors are provided, the 6 wall pressure sensors can be separated at preset intervals, and the specific values of the preset intervals are related to the specific model of the grenade to be killed and the distance between the specific model and the trigger target, so that the tester can set the values according to actual requirements.
The technical scheme provided by the embodiment of the invention is explained in detail below by combining a specific embodiment, and the test system of the dynamic power field for killing the grenades provided by the embodiment of the invention is suitable for killing the grenades with large calibers over 100 mm.
Fig. 1 is a schematic diagram of a test system of a dynamic power field of a detonating grenade killing device provided by the embodiment of the invention. As shown in fig. 1, a triggering target 4 having a height of 1m, a width of 1m and a thickness of not less than 300mm is arranged 300m to 400 m directly in front of the muzzle direction of a ballistic gun 3, and the center of the triggering target 4 is 2m high from the ground to function as a triggering fuse.
For example, the triggering target is preferably made of dry pine wood, the height of the triggering target is 1m, the width of the triggering target is 1m, the thickness of the triggering target is 300mm, the height of the center of the triggering target 4 from the ground is 2m, and the height of the muzzle of the ballistic cannon 3 from the ground is 2 m.
For convenience of description, in this embodiment of the present invention, it is stated that, taking the trigger target 4 as a center, the direction toward the ballistic gun 3 is 0 °, 15 pine targets are arranged in the regions of 180 ° and 360 ° clockwise to form the sector plate 1, the sector plate 1 is a half circular arc, the center of the circle is the center of the trigger target 1, the radius is 8m, each of the 15 pine targets has a height of 4.3m, a width of 1.6m and a thickness of 25mm, for each pine target, a line is drawn every 10cm on the front surface (the surface toward the trigger target 4) to form 43 × 16 grids (i.e., one pine target is divided into 43 rows and 16 columns), and each grid of each pine target is sequentially marked.
On the other side (i.e., the region between 0 ° and 180 ° clockwise) with respect to the sector plate 1, 3 wall pressure sensors 2 are arranged along three phases of 45 °, 90 ° and 135 °, and 6 wall pressure sensors 2 are arranged in each of the 3 wall pressure sensors, and the 6 wall pressure sensors 2 are sequentially at a distance of 4m, 5m, 6m, 7m, 8m, and 9m from the center of the trigger target 4, and the range of each wall pressure sensor is at least 0 to 5MP in consideration of the test requirements.
The method comprises the steps that a shelter 11 with a hole 12 to be observed is arranged outside 100m corresponding to a clockwise 90-degree phase, the observation hole 12 is opposite to a trigger target 4, a high-speed video recorder 6 is arranged in the shelter 11, the high-speed video recorder 6 is opposite to the observation hole 12, the high-speed video recorder 6 is adjusted to enable the view field of the high-speed video recorder to comprise the whole sector plate 1, and the trigger target 4 is used as the center of the view field. In addition, before the test of the dynamic explosion power field of the explosion-killing grenade is started, a high mark rod of 3m is erected at the position of the trigger target 4, and pixel proportion calibration in a visual field is carried out.
The center of the sector plate 1, the center of the trigger target 3, the wall surface sensor 2, and the high-speed video recorder 1 are disposed on the same horizontal plane.
In the test system of the dynamic explosion power field of the explosion-killing grenade shown in figure 1, a speed measuring radar 7 is further arranged behind the ballistic gun 3, and the speed measuring radar 7 can track and measure the target-hitting speed of the explosion-killing grenade 5.
In addition, in the test system of the dynamic explosion power field for killing the explosion grenades shown in fig. 1, a through target 8 made of aluminum foil is attached to the surface, facing the shooting direction, of the trigger target 4, the through target 8 is connected with a trigger line 9, and in the penetration process of the explosion grenades, the through target 8 is communicated with a data acquisition device 10 connected with the trigger wall surface pressure sensor 2 to start recording test data acquired in the experimental process.
At the beginning of the test, calculating the initial velocity of the detonation grenade 5 according to the real ballistic falling velocity of the detonation grenade 5 and the distance between the trigger target 4 and the ballistic cannon 3; therefore, the grenade 5 is shot according to the initial shooting speed requirement by adjusting the ballistic gun 3 through the propellant powder on the basis of internal ballistic trajectory calculation, the ballistic gun is directly aimed at the center of the trigger target 4, the grenade 5 provided with the high-instantaneous collision fuse can explode when touching the trigger target 4, a trigger signal is simultaneously given to the wall surface pressure sensor 2 and the data acquisition equipment 10, and the data acquisition equipment 10 starts to record signals.
After the test experiment performed by the test system for the dynamic explosion power field of the explosion-killing grenade provided by the embodiment of the invention is finished, parameters related to the dynamic explosion power field of the explosion-killing grenade can be determined according to data acquired through the test experiment, so that important data support can be provided for the subsequent structural design, performance evaluation and operational use of the explosion-killing grenade.
In some optional embodiments, after the test is completed, the pine targets forming the sector plates are broken along the splicing part under the action of the shock waves, so that reduction is required to be performed according to the marks on each pine target before the test, and after the reduction is completed, the number of fragments and the number of perforations on each pine target are counted; determining the distribution rate of the fragments according to the total number of the fragments of the guard plate and the initial positions of the fragments on the sector plate; and determining a fragment dynamic dispersion angle according to the fragment distribution rate, and taking an included angle between the central line of the fragment dynamic dispersion angle and the axis of the explosion-killing grenade as a fragment dynamic dispersion direction angle, wherein the fragment dynamic dispersion direction angle can represent the dispersion rule of the fragments.
Specifically, in combination with the system for testing the dynamic power field of the explosive grenade, as shown in fig. 1, the method for specifically determining the dynamic dispersion direction angle of the fragments is as follows:
(a) the total fragment number on each pine target 1 is calculated according to the formula (1);
in the formula: n is a radical ofi-the number of fragments on the ith pine target 1;
Nij-the number of fragments in row j on the ith pine target 1;
(b) the total fragment number on the pine target 1 is calculated according to a formula (2);
in the formula: n is the total number of fragments on all the pine targets 1;
Ni-the number of fragments on the ith pine target 1.
(c) Calculating the distribution rate of the jth row of fragments on each pine target 1 according to a formula (3);
in the formula: deltai-distribution law of jth column fragment on i pine target 1;
Nij-the number of fragments in row j on the i pine target 1;
n-total number of fragments on all pine targets 1.
taking the trigger target 4 as a center and the ballistic gun 3 as a 0-degree phase, and calculating the phase β of the j-th row intermediate shaft of each pine target 1 in the clockwise directionijdrawing distribution curves delta- β of the fragments in different directions according to the calculation results, wherein the horizontal axis represents a fly-away angle β (0-180 degrees), the vertical axis represents a jth column fragment distribution rate delta on each pine target 1, a fly-away angle area with the fragment distribution rate delta sum of 90 percent is taken as a dynamic fly-away angle of the fragments, and an included angle between the central line of the dynamic fly-away angle of the fragments and the axis of the bomb is taken as a dynamic fly-away square of the fragmentsAnd (4) facing to the angle.
In some alternative embodiments, the fragment penetration rate may also be determined according to the total number of fragments and the number of perforations on the sector plate after detonation of the detonation grenade.
Specifically, in combination with the testing system of the dynamic power field for killing the grenades shown in fig. 1, the thickness of the adopted sector plate is 25mm, the distance between the center of the trigger target and the sector plate is 8m, and therefore, the fragment penetration rate of the sector plate with the thickness of 25mm outside 8m is determined by the following method:
in the formula: the penetration rate of the lambda-8 m outer segment to the fragments on a sector plate with the thickness of 25 mm;
Nk-number of fragments of 8m penetrating a sector plate 25mm thick;
n-total number of fragments on the sector plate.
In some alternative embodiments, the overpressure peak of the shock wave at the same radial distance may also be determined by the following formula:
in the formula: delta PRiSame radial distance RiAn upper shock wave overpressure peak;
n-same radial distance RiThe number of the wall sensors is arranged;
ΔPRijsame radial distance RiThe surge overpressure peak obtained by each wall sensor.
The overpressure value measured by the wall pressure sensor used in the test is actually a reflected wave overpressure value obtained after the incident shock wave is obliquely reflected by the ground. When the explosive charges explode at a certain height from the ground, the air shock waves at different distances from the explosion center possibly have the phenomena of positive reflection, oblique reflection and the like, and the same radial distance R can be obtained according to the calculation resultiOverpressure peak of upper incident shock wave according to each radial distance RiOverpressure peak delta of upper incident shock wavePiCalculating by a formula (7) through fitting to obtain an overpressure peak value of the shock wave;
in the formula: Δ P — shock wave overpressure peak;
A. b, C-test fitting coefficients.
In the equation (7), the fitting calculation may be performed by the least square method.
For the specific details and benefits of the method for testing the dynamic explosion power field of the grenade killer provided by the invention, reference may be made to the description of the system for testing the dynamic explosion power field of the grenade killer provided by the invention, and further description is omitted here.
The values of the specific parameters related in the above embodiments of the invention are not fixed, for example, the distance between the sector plate, the speed measuring radar, the shock wave pressure detection device and other equipment and the explosion point, the thickness of the pine target, the thickness of the trigger target and the like can be determined according to the actual ammunition amount of the explosion grenade. Therefore, the specific data are only exemplary, and can be adjusted arbitrarily according to actual requirements in the actual test experiment process.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A system for testing a dynamic detonation power field of a detonating grenade, the system comprising:
a trigger target arranged opposite to a ballistic cannon for launching the detonation grenade;
the sector plate is arranged on one side of the trigger target and protrudes towards the direction departing from the trigger target, and fragments generated after the explosion of the explosion-killing grenade penetrate through the sector plate; and the shock wave pressure detection device is arranged on the other side of the trigger target and is used for detecting a pressure signal generated by the shock wave generated after the explosion of the explosion-killing grenade.
2. The test system according to claim 1, wherein the system further comprises an image acquisition unit for acquiring the image of the action process of the detonation grenade to obtain the detonation position and the posture of the detonation grenade.
3. The test system according to claim 1, wherein the system further comprises a speed radar for detecting a target impact speed of the detonation grenade.
4. The test system according to claim 1, wherein the shockwave pressure detecting means comprises at least three wall pressure sensors, centered on the triggering target, oriented in a 0 ° phase to the ballistic cannon, oriented in a positive direction, the wall pressure sensors being arranged at different angles in the 45 ° to 135 ° region.
5. The test system according to claim 4, wherein the shock wave pressure detection means comprises eighteen wall pressure sensors, the eighteen wall pressure sensors being three, six wall pressure sensors of each being spaced apart at preset intervals, the three corresponding angles being 45 °, 90 ° and 135 °, respectively.
6. The test system of claim 1, wherein the sector plate comprises 15 pine targets connected end to end, the sector plate is a semi-circular arc with a radius of 8 meters and centered at the center of the trigger target,
the pine target is 4.3 meters in height, 1.6 meters in width and not less than 25 millimeters in thickness, marking lines are engraved on the surface of the pine target facing the trigger target, and the marking lines are used for dividing the pine target into 43 x 16 grids.
7. The test system of claim 1, wherein the trigger target is made of dry pine wood, has a height of 1m, a width of 1m, and a thickness of not less than 300mm, and has a center at a height of 2m from the ground.
8. A method for testing dynamic explosion power field of explosion-killing grenades, which is characterized in that the system for testing dynamic explosion power field of explosion-killing grenades according to any one of the claims 1-7 is adopted to carry out explosion-killing grenade test, and the method comprises the following steps:
determining the distribution rate of fragments according to the total number of fragments on a sector plate after the explosion of the explosion grenade and the initial position of the fragments on the sector plate; and
and determining a fragment dynamic dispersion angle according to the distribution rate of the fragments, and taking an included angle between the central line of the fragment dynamic dispersion angle and the axis of the explosion-killing grenade as a fragment dynamic dispersion direction angle.
9. The testing method of claim 8, wherein the testing method comprises:
and determining the fragment penetration rate according to the total number of fragments on the sector plate and the number of perforated fragments after the explosion of the explosion grenade.
10. The test method of claim 8, further comprising determining a surge overpressure peak at the same radial distance by the following equation:
wherein, Δ PRiRepresenting the same radial distance RiThe overpressure peak value of the upper shock wave, n represents the same radial distance RiNumber of wall sensors arranged thereon, Δ PRijRepresenting the same radial distance RiThe surge overpressure peak obtained by each wall sensor.
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| CN112798440A (en) * | 2020-12-28 | 2021-05-14 | 中南大学 | High-speed impact penetration resistance test device and test method for honeycomb structure |
| CN112880956A (en) * | 2020-12-25 | 2021-06-01 | 北京理工大学 | Explosion-proof equipment test system under action of multiple explosive physical fields |
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| CN112880956B (en) * | 2020-12-25 | 2021-12-10 | 北京理工大学 | Explosion-proof equipment test system under the action of explosion multi-physics |
| CN112798440A (en) * | 2020-12-28 | 2021-05-14 | 中南大学 | High-speed impact penetration resistance test device and test method for honeycomb structure |
| CN115060123B (en) * | 2022-05-07 | 2024-01-30 | 中国人民解放军国防科技大学 | Active fragment comprehensive power testing device and testing method |
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| CN115356502A (en) * | 2022-07-27 | 2022-11-18 | 中国人民解放军63856部队 | A method for testing the muzzle velocity of small-caliber infantry grenade fragments |
| CN115355774A (en) * | 2022-07-28 | 2022-11-18 | 中国人民解放军63856部队 | Small-caliber infantry grenade fragment space distribution test method |
| RU2803984C1 (en) * | 2023-03-20 | 2023-09-25 | Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт химии и механики" (ФГУП "ЦНИИХМ") | Method for testing axisymmetric high-explosive fragmentation munitions with non-axisymmetric fragmentation field |
| RU2814055C1 (en) * | 2023-07-10 | 2024-02-21 | Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт химии и механики" (ФГУП "ЦНИИХМ") | Method for comprehensive testing of axially-symmetrical high-explosive fragmentation ammunition with axially-symmetrical fragment field |
| CN119223110A (en) * | 2023-09-28 | 2024-12-31 | 北京理工大学 | A test system and method for evaluating the destructive power of anti-radiation ammunition |
| CN117968466A (en) * | 2024-03-29 | 2024-05-03 | 中国兵器工业试验测试研究院 | Small-size ultrahigh-speed fragment flight attitude speed measurement system and method |
| RU2831189C1 (en) * | 2024-05-17 | 2024-12-02 | Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт химии и механики" (ФГУП "ЦНИИХМ") | Method of testing axisymmetric high-explosive fragmentation incendiary ammunition |
| RU2837165C1 (en) * | 2024-06-25 | 2025-03-26 | Федеральное казенное предприятие "Национальное испытательное объединение "Государственные боеприпасные испытательные полигоны России" (ФКП "НИО "ГБИП России") | Method of testing fragmentation ammunition with axisymmetric field of fragmentation dispersion |
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