A device and method for separating a particle spring from a particle under sub-millimeter heavy metal particle impact

Abstract

The application provides a sub-millimeter heavy metal particle impact particle cartridge separation device and method, a cartridge is arranged in a ballistic gun barrel; the rear end of the ballistic gun barrel is sleeved in the front end of a cartridge guide pipe, the rear end of the cartridge guide pipe is fixedly connected with the front end of a pressure relief pipe; the rear end of the pressure relief pipe is connected with the front end of a cartridge separation container through a flange adapter; a propellant filter is arranged in the flange adapter, the front end of the propellant filter is located in the pressure relief pipe, and the rear end of the propellant filter is located in the cartridge separation container; a spring and a separation device are arranged in the cartridge separation container; the rear end of the cartridge separation container is provided with a baffle. The spring buffering structure not only plays a buffering role on the cartridge capture separator, but also can absorb the energy generated by the high-speed impact of the cartridge, so that the particle cartridge separation is realized before the cartridge is broken, and the structural strength and impact stability of the whole device are improved.

Description

TECHNICAL FIELD

[0001] The present application is a kind of sub-millimeter heavy metal particle impact under the particle bomb carrier separation device and method, especially for explosive driven sub-millimeter heavy metal particle on the target penetration effect test method, belongs to high-speed dynamic process test technical field. BACKGROUND

[0002] The conventional conventional explosive ammunition drives the shell to produce a large number of irregular metal fragments by high-energy explosive explosion, which damages the military target. The flight trajectory and damage range of the fragments cannot be controlled due to the different mass and shape of the fragments, which can easily cause great collateral damage to non-military targets while damaging military targets, and cannot complete the combat mission.

[0003] Under this combat demand, a kind of low collateral damage ammunition with precision guidance is gradually developed. This low collateral damage ammunition uses sub-millimeter heavy metal particles instead of traditional metal damage fragments as damage elements, and uses carbon fiber and other composite materials instead of commonly used metal shells. Under the action of central high-energy explosive detonation wave, the carbon fiber shell is broken and fully burned, and no large mass and large size fatal damage fragments are produced. Sub-millimeter heavy metal particles have small mass, small size and large number, and have strong dense damage effect in the near-field area, but due to the small mass of the heavy metal particles, the storage speed is weak, and the speed decays in the air in the form of exponential, which leads to no fatal damage in the far-field range, thereby reducing the collateral damage range of the explosive combat unit. However, for low collateral damage ammunition, biological targets are mainly used as damage objects, and the damage effect and injury mechanism of the heavy metal particle damage element are different from those of the metal fragments produced by the traditional damage and explosion combat unit, so it is necessary to further study the penetration mechanism of heavy metal particles on biological targets.

[0004] The penetration mechanism research method of conventional fragments at home and abroad usually adopts ballistic gun test method to record the speed of the fragments before acting on the biological target and the ballistic cavity after penetration, so as to obtain the penetration depth equation of the fragments on different biological target parts. However, for sub-millimeter heavy metal particles, the following shortcomings exist in the method of studying the penetration law without installing any device in the barrel of the ballistic gun:

[0005] (1) After the propellant drives the bomb carrier to leave the muzzle at high speed, the ballistic gun barrel will continue to spray high-pressure gas and propellant residues, which will greatly interfere with the shooting effect of the heavy metal particles before hitting the target, thereby affecting the accuracy of obtaining the hitting speed of the heavy metal particles;

[0006] (2) The particle size range of heavy metal particles is 0.1-1mm, and the mass is between 0.0088-8.8mg. The heavy metal particles cannot be separated by their own inertia to produce bomb carriers, so that the bomb carriers and heavy metal particles hit the target together;

[0007] (3) The baffle is used to block the heavy metal particles and the booster separation mode, when the booster hits the baffle, a large number of fragments are generated to interfere with the heavy metal particles hitting the target, which is extremely likely to fail to capture and distinguish, thereby causing the test to fail. SUMMARY

[0008] The purpose of the present application is to overcome the defects of the prior art, and provide a sub-millimeter heavy metal particle impact particle booster separation device and method. The device and method can reduce the interference of the propellant residue and the booster fragment on the heavy metal particle penetration target, so that the penetration effect of the heavy metal particle group on the target under different impact conditions can be truly and accurately obtained, and more reliable test data for studying the damage criterion and injury mechanism of the low-burden damage ammunition damage element on the biological target can be provided.

[0009] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0010] A sub-millimeter heavy metal particle impact particle booster separation device, from the front end to the rear end, includes a ballistic barrel, a booster guide tube, a pressure relief pipe, and a booster separation container in sequence;

[0011] The ballistic barrel is provided with a booster;

[0012] The rear end of the ballistic barrel is sleeved in the front end of the booster guide tube, and the rear end of the booster guide tube is fixedly connected with the front end of the pressure relief pipe;

[0013] The rear end of the pressure relief pipe is connected with the front end of the booster separation container through a flange adapter; the propellant filter is installed in the flange adapter, the front end of the propellant filter is located in the pressure relief pipe, and the rear end of the propellant filter is located in the booster separation container;

[0014] The booster separation container is provided with a spring and a separation device; and the rear end of the booster separation container is provided with a baffle.

[0015] The spring and the separation device include a spring positioning sleeve, a booster capture separator and a spring which are coaxially arranged in the inner cavity of the booster separation container in sequence; the front end of the spring positioning sleeve is clamped on the connecting end of the propellant filter, the front end of the spring is clamped in the groove structure of the booster capture separator, the baffle is coaxially fixed with the thick end of the booster separation container through a flange, and the front end surface of the baffle is provided with a boss end surface for abutting against the rear end of the spring.

[0016] The adapter flange is further provided with a propellant intercepting plate.

[0017] The front end of the booster guide tube is in a cylindrical structure and is coaxially installed with the ballistic barrel, and the rear end is fixedly connected with the pressure relief pipe through a flange.

[0018] The elastic support is a two-leaf structure, comprising two halves, each of which is provided with a corresponding plug and socket at the cross section, and the two halves are combined into a whole through a mortise and tenon joint, and a ring-shaped clamping groove is arranged on the periphery of the whole, and a clamping ring is sleeved in the clamping groove to fixedly connect the two halves.

[0019] The pressure relief pipe is provided with a base and a plurality of straight grooves at the bottom end of the base for connecting with the platform.

[0020] The front end of the propellant filter is provided with a funnel-shaped structure, the rear end is provided with a cylindrical structure, and a flange structure and a connecting end are arranged between the two ends.

[0021] The propellant intercepting plate is provided with an inner concave disc structure.

[0022] The two ends of the elastic support separation container are coaxially fixedly connected with the adapter flange and the baffle through flange bolts, and the elastic support separation container is provided with a base, and a plurality of straight grooves are arranged on the base for screwing with the platform.

[0023] The two ends of the spring positioning sleeve are provided with bosses, the boss at the front end is arranged on the connecting end of the propellant filter, and the boss at the rear end is arranged on the end face of the elastic support capture separator to ensure that the spring is in a compressed state.

[0024] The longitudinal cross section of the elastic support capture separator is in a W-shaped structure, comprising a maximum outer wall at the periphery and a central boss in the middle; the maximum outer wall is in clearance fit with the inner cavity wall of the elastic support separation container, a spring clamping groove is arranged between the maximum outer wall and the central boss for tightly connecting with the front end of the spring.

[0025] A front conical section is arranged on the front end face of the central boss to form a large horn, and the large opening of the large horn faces the front end; a reverse rear conical section is arranged on the rear end face of the central boss to form a small horn through hole, and the large opening of the small horn through hole faces the rear end; a cylindrical through hole is arranged between the small opening of the front conical section and the small opening of the rear conical section for connecting the two; the diameter of the cylindrical through hole is equal to the diameter of the small opening of the front conical section and greater than the diameter of the small opening of the rear conical section.

[0026] The baffle is provided with a boss which is in close fit with the inner wall of the elastic support separation container; and a baffle conical through hole is arranged at the central position of the baffle.

[0027] A method for separating a particle elastic support under the impact of sub-millimeter heavy metal particles, comprising the following steps:

[0028] Step one: design the propellant mass parameters in the launch cylinder according to the test scheme;

[0029] Step two: the sub-millimeter heavy metal particles impact particle bomb carrier separation device is fixed on the test platform and the bomb carrier guide tube is consistent with the center position of the barrel, the shell with the bomb carrier is loaded into the barrel and the cover is completed, and the trigger line is connected to make the trigger device in the standby state;

[0030] Step three: the trigger device is used to initiate the propellant, and under the driving action of combustion and detonation, the bomb carrier with heavy metal particles is accelerated to the maximum speed and flies along the barrel, after entering the inner cavity of the pressure relief pipe, the launch propellant combustion gas and flame are rapidly weakened, the launch propellant residue is intercepted under the action of the launch propellant filter and the launch propellant intercepting plate to reduce the interference with the shooting window, when the bomb carrier enters the inner cavity of the bomb carrier separation container at high speed, the bomb carrier is captured by the bomb carrier capture separator, and then the heavy metal particles are separated from the bomb carrier and continue to move forward to the target.

[0031] Step four: the high-speed camera system is used to record and obtain the flight distance and time of the heavy metal particles before hitting the target to obtain the hitting speed, and the instantaneous damage cavity data of the heavy metal particles after acting on the target is also recorded.

[0032] Step five: finally, according to the relationship between the penetration depth and the impact speed, the penetration depth equation of the heavy metal particles to different biological target parts is obtained by fitting.

[0033] Compared with the prior art, the technical advantages brought by the present application are as follows:

[0034] (1) the device adopts the mode of fixing the base to the platform and using the spring buffer structure in the bomb carrier separation container, which not only buffers the bomb carrier capture separator, but also absorbs the energy generated by the high-speed impact of the bomb carrier, so that the particle bomb carrier separation is realized before the bomb carrier is broken, and the structural strength and impact stability of the whole device are improved;

[0035] (2) the pressure relief hole and the window in the pressure relief pipe structure design reduce the influence of the high-pressure gas sprayed in the barrel on the shooting window, the launch propellant residue is blocked by the launch propellant filter and the launch propellant intercepting plate, and the resolution and shooting effect of the particle capture system are improved;

[0036] (3) the bomb carrier adopts a two-piece structure, which solves the difficulty of mixed impact of a large number of fragments and heavy metal particles on the target after high-speed collision of the complete bomb carrier, and the conical + cylindrical structure of the bomb carrier capture separator at the entrance of the bomb carrier corrects and guides the bomb carrier when the motion trajectory deviates, thereby improving the particle bomb carrier separation probability. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1Main view of sub-millimeter heavy metal particle impact particle cartridge separation device;

[0038] Figure 2 The sectional view structure schematic diagram is Figure 1

[0039] Figure 3 The two-lip cartridge structure schematic diagram is

[0040] Figure 4a The main view of pressure relief pipe structure sectional view is

[0041] Figure 4b The sectional view of pressure relief pipe structure is

[0042] Figure 5a The propellant filter structure isomeric side view structure is

[0043] Figure 5b The propellant filter structure left view is

[0044] Figure 6a The cartridge separation container structure isomeric side view is

[0045] Figure 6b The cartridge separation container structure sectional view is

[0046] Figure 7a The cartridge capture separator structure main view is

[0047] Figure 7b The cartridge capture separator structure A-A sectional view is

[0048] Figure 8a The baffle structure isomeric side view is

[0049] Figure 8b The baffle structure sectional view is DETAILED DESCRIPTION

[0050] The application is further described below in conjunction with the drawings and specific embodiments.

[0051] As Figure 1 and Figure 2 A sub-millimeter heavy metal particle impact particle cartridge separation device is given in the embodiment, from the front end to the rear end, including the ballistic barrel 1, the cartridge guide tube 4, the pressure relief pipe 5, the cartridge separation container 9 in turn;

[0052] The ballistic barrel 1 is provided with the cartridge 2;

[0053] The ballistic barrel 1 rear end is sleeved in the cartridge guide tube 4 front end, and the cartridge guide tube 4 rear end is fixedly connected with the pressure relief pipe 5 front end;

[0054] ​The rear end of the pressure relief pipe 5 is connected with the front end of the cartridge case separation container 9 through a flange adapter 7; the propellant filter 8 is installed in the flange adapter 7, the front end of the propellant filter 8 is located in the pressure relief pipe 5, and the rear end is located in the cartridge case separation container 9;

[0055] The cartridge case separation container 9 is provided with a spring and a separation device; the rear end of the cartridge case separation container 9 is provided with a baffle 13.

[0056] The spring and the separation device include a spring positioning sleeve 10, a cartridge case capture separator 11 and a spring 12 which are coaxially arranged in the inner cavity of the cartridge case separation container 9 in sequence; the front end of the spring positioning sleeve 10 is clamped on the connecting end of the propellant filter 8, the front end of the spring 12 is clamped in the groove structure of the cartridge case capture separator 11, the baffle 13 is coaxially fixed with the thick end of the cartridge case separation container 9 through a flange, and the front end surface of the baffle 13 is provided with a boss end surface for abutting against the rear end of the spring 12.

[0057] The flange adapter 7 is further provided with a propellant interception plate 6.

[0058] The front end of the cartridge case guide pipe 4 is a cylindrical structure, coaxially arranged with the barrel 1, and the rear end is fixedly connected with the pressure relief pipe 5 through a flange.

[0059] As shown in Figure 3 , the cartridge case 2 is a two-piece structure, including two halves, and the two halves are respectively provided with corresponding plugs 2-2 and sockets 2-3 at the cross section, and the two halves are combined into a whole through a mortise and tenon joint, and a ring-shaped clamping groove 2-4 is arranged on the periphery of the whole, and a clamping ring is sleeved in the clamping groove 2-4 to fixedly connect the two halves. The clamping ring is sleeved in the clamping groove 2-4 reserved in the cartridge case cylindrical segment to ensure that the two-piece cartridge case is tightly combined and is easy to be pressed into the shell, and also can ensure that the cartridge case 2 does not dislocate before entering the cartridge case capture separator 11, so as to avoid affecting the flight trajectory of the heavy metal particles 3.

[0060] As shown in Figure 4a and Figure 4b , the pressure relief pipe 5 is coaxially fixed at both ends 5-1 through a flange, a plurality of pressure relief holes 5-3 are arranged on the pipe wall near the front end for reducing the interference of flame and gunpowder balloon, a plurality of windows 5-4 are arranged on the pipe wall near the rear end for observing the trajectory of the cartridge case and outputting the propellant residues after interception by the propellant filter 8, and the pressure relief pipe 5 is welded to a base and a plurality of pressure relief pipe base straight grooves 5-2 are arranged on the bottom end to be connected with the platform.

[0061] As shown in Figure 5a and Figure 5bAs shown, the front end of the propellant filter 8 adopts a funnel structure 8-1 for intercepting propellant residues and sliding out of the inner cavity of the pressure relief pipe 5 along the inner wall of the funnel, the rear end adopts a cylindrical structure 8-3 for guiding the projectile carrier 2 into the projectile carrier separation container 11, and the flange structure 8-2 between the two ends is connected with the adapter flange 7; the rear side of the flange structure 8-2 is also provided with a connection end.

[0062] The propellant interception plate 6 adopts an inner concave disc structure to intercept the propellant residues scattered from the inner cavity of the pressure relief pipe 5 and is connected with the adapter flange 7 at the rear end of the pressure relief pipe 5.

[0063] As shown in Figure 6a and Figure 6b The projectile carrier separation container 9 is coaxially fixed at both ends with the adapter flange 7 and the baffle 13 by flange bolts 9-1, and a middle cylindrical segment is welded with two bases, and the bases are provided with a plurality of projectile carrier separation container base straight slots 9-2 which are fixed with platform bolts.

[0064] Further, the spring positioning sleeve 10 is provided with a boss at both ends, the boss at the front end is on the shoulder of the connection end of the propellant filter 8, and the boss at the rear end is on the end face of the projectile carrier capture separator 11 to ensure that the spring 12 is in a compressed state.

[0065] As shown in Figure 7a and Figure 7b The longitudinal cross-section of the projectile carrier capture separator 11 is in a W-shaped structure, including a maximum outer wall at the periphery and a central boss in the middle; the maximum outer wall is in clearance fit with the inner cavity wall of the projectile carrier separation container 9, a spring clamping groove 11-1 is provided between the maximum outer wall and the central boss for close connection with the front end of the spring 12.

[0066] A front conical segment 11-4 is provided on the front end face of the central boss to form a large horn mouth, and the large opening of the large horn mouth faces the front end; a reverse rear conical segment 11-3 is provided on the rear end face of the central boss to form a small horn through hole, and the large opening of the small horn through hole faces the rear end; a cylindrical through hole 11-2 is provided between the small opening of the front conical segment 11-4 and the small opening of the rear conical segment 11-3, and the diameter of the cylindrical through hole is equal to the diameter of the small opening of the front conical segment 11-4 and greater than the diameter of the small opening of the rear conical segment 11-3.

[0067] The front conical hole 11-4 is used to induce the projectile carrier deviating from the central trajectory, the cylindrical through hole 11-2 is used to correct the end face of the projectile carrier, and the end face of the cylindrical through hole maintains good parallelism to ensure that the projectile carrier flies along the center line after separation, and the rear conical hole 11-3 is conducive to ensuring the stable scattering of the heavy metal particle group.

[0068] As shown in Figure 8a and Figure 8bAs shown, the baffle 13 and the spring carrier separation container 9 are connected by flange connection, the baffle 13 is provided with a boss 13-1, which is tightly matched with the inner wall of the spring carrier separation container 9 to ensure good coaxiality with the center line, and the baffle 13 is provided with a baffle conical hole 13-2 at the center position, which can ensure that the spring carrier can move through the spring carrier capture separator 9 and also can ensure stable scattering when the heavy metal particle group is loaded.

[0069] A particle spring carrier separation method under sub-millimeter heavy metal particle impact, comprising the following steps:

[0070] Step one: according to the test scheme, the mass parameters of the launching charge in the launching cylinder are designed;

[0071] Step two: the sub-millimeter heavy metal particle impact particle spring carrier separation device is fixed on the test platform, the spring carrier guide tube 4 is consistent with the center position of the trajectory gun barrel 1 in horizontal height, the shell with the spring carrier 2 is loaded into the trajectory gun barrel 1 and the cover is completed, and the trigger line is connected to make the trigger device in the standby trigger state;

[0072] Step three: the launching charge is initiated by using the trigger device, under the driving action of combustion and detonation, the spring carrier 2 with the heavy metal particle 3 is accelerated to the maximum speed and flies along the trajectory gun barrel 1, after entering the inner cavity of the pressure relief pipe 5, the launching charge combustion gas and flame are rapidly weakened under the action of the pressure relief hole 5-3, the launching charge residue is intercepted under the action of the launching charge filter 8 and the launching charge intercepting plate 6, and the interference on the shooting window is reduced, when the spring carrier 2 enters the inner cavity of the spring carrier separation container 9 at high speed, the spring carrier 2 is captured by the spring carrier capture separator 11, and then moves forward under the compression of the spring, the heavy metal particle 3 is separated from the spring carrier 2 and continues to move forward to the action target.

[0073] Step four: the flying distance and time of the heavy metal particle 3 before hitting the target are recorded and obtained by the high-speed camera system, and the hitting speed is obtained, and the instantaneous damage cavity data of the heavy metal particle 3 after acting on the target are also shot;

[0074] Step five: finally, according to the relationship between the penetration depth and the impact speed, the penetration depth equation of the heavy metal particle to different biological target parts is calculated and fitted.

[0075] The sub-millimeter and heavy metal particle impact particle spring carrier separation device and method provided by the application solve the test difficulty that the launching charge residue and spring carrier fragments interfere with the heavy metal particle penetration target process, can meet the requirement of sub-millimeter heavy metal particle separation from the spring carrier under high-speed impact, has strong impact stability and operability, the method is simple and clear, the principle is clear, the operation is simple, and has strong applicability.

Claims

1. A sub-millimeter scale particle bouncer separation device under particle impact of heavy metal particles, characterized by, From front to back, it includes in turn a ballistic barrel (1), a cartridge support guide tube (4), a pressure relief tube (5), a cartridge support separation container (9); The ballistic barrel (1) is internally provided with a cartridge support (2); The rear end of the ballistic barrel (1) is sleeved in the front end of the cartridge support guide tube (4), and the rear end of the cartridge support guide tube (4) is fixedly connected with the front end of the pressure relief tube (5); The rear end of the pressure relief tube (5) is connected with the front end of the cartridge support separation container (9) through a flange adapter (7), a propellant filter (8) is installed in the flange adapter (7), the front end of the propellant filter (8) is located in the pressure relief tube (5), and the rear end of the propellant filter (8) is located in the cartridge support separation container (9); The flange adapter (7) is further provided with a propellant intercepting plate (6); the propellant intercepting plate (6) adopts a concave disc structure; The cartridge support separation container (9) is internally provided with a spring and a separation device; the rear end of the cartridge support separation container (9) is provided with a baffle (13); The spring and the separation device comprise, in sequence, a spring positioning sleeve (10), a cartridge support capturing separator (11) and a spring (12) which are coaxially arranged in the inner cavity of the cartridge support separation container (9); the front end of the spring positioning sleeve (10) is clamped on the connecting end of the propellant filter (8), the front end of the spring (12) is clamped in the groove structure of the cartridge support capturing separator (11), the rear end of the baffle (13) is coaxially fixed with the rear end of the cartridge support separation container (9) through a flange, and the front end face of the baffle (13) is provided with a boss end face for abutting against the rear end of the spring (12); The spring positioning sleeve (10) is provided with bosses at two ends, the boss at the front end is abutted on the connecting end of the propellant filter (8), and the boss at the rear end is abutted on the end face of the cartridge support capturing separator (11) to ensure that the spring (12) is in a compressed state; The cartridge support capturing separator (11) has a W-shaped structure in longitudinal section, comprising a maximum outer wall at the periphery and a central boss in the middle; the maximum outer wall is in gap cooperation with the inner cavity wall of the cartridge support separation container (9), a spring clamping groove (11-1) is formed between the maximum outer wall and the central boss, and the front end of the spring (12) is tightly connected with the spring clamping groove (11-1); a front conical section (11-4) is formed on the front end face of the central boss, forming a large horn mouth, and the large mouth of the large horn mouth faces the front end; a reverse rear conical section (11-3) is arranged on the rear end face of the central boss, forming a small horn through hole, and the large opening of the small horn through hole faces the rear end; a cylindrical through hole (11-2) is arranged between the small mouth of the front conical section (11-4) and the small mouth of the rear conical section (11-3), and the diameter of the cylindrical through hole is equal to the diameter of the small mouth of the front conical section (11-4) and greater than the diameter of the small mouth of the rear conical section (11-3); The baffle (13) is provided with a boss (13-1) which is tightly matched with the inner wall of the cartridge support separation container (9); a baffle conical through hole (13-2) is formed at the central position of the baffle (13); The front end of the cartridge support guide tube (4) has a cylindrical structure, and the rear end is fixedly connected with the pressure relief tube (5) through a flange.

2. A sub-millimeter scale particle bouncer separation device according to claim 1, wherein, The elastic support (2) is a two-part structure, comprising two halves, each of which is provided with a corresponding plug (2-2) and a socket (2-3) at the cross section, and the two halves are combined into a whole through a mortise and tenon joint, and a ring-shaped clamping groove (2-4) is arranged around the whole, and a clamping ring is sleeved in the clamping groove (2-4) to fixedly connect the two halves.

3. A sub-millimeter scale particle bouncer separation device according to claim 1, wherein, The pressure relief pipe (5) is provided with a plurality of pressure relief holes (5-3) in the pipe wall near the front end, and a plurality of windows (5-4) are machined in the pipe wall near the rear end, and the pressure relief pipe (5) is provided with a base and a plurality of pressure relief pipe base straight slots (5-2) are formed in the bottom end of the base for connection with the platform.

4. A device for separating particle ejecta from a particle projectile according to claim 1, wherein, The front end of the propellant filter (8) is provided with a funnel-shaped structure (8-1), the rear end is provided with a cylindrical structure (8-3), and a flange structure (8-2) and a connecting end are arranged between the two ends.

5. A sub-millimeter scale particle bouncer separation device according to claim 1, wherein, The elastic support separation container (9) is coaxially fixed with the flange adapter (7) and the baffle (13) at both ends through flange bolts (9-1), and the elastic support separation container (9) is provided with a base, and a plurality of elastic support separation container base straight slots (9-2) are formed in the base and bolted to the platform.

6. A method for separating a particle bouncer from a particle under sub-millimeter heavy metal particle impact, characterized in that, The sub-millimeter heavy metal particle impact elastic support separation device according to any one of claims 1 to 5 comprises the following steps: Step one: according to the test scheme, the mass parameters of the propellant in the launch cylinder are designed; Step two: the sub-millimeter heavy metal particle impact elastic support separation device is fixed on the test platform, the elastic support guide pipe (4) is aligned with the center position of the ballistic gun barrel (1) in height, the shell with the elastic support (2) is loaded into the ballistic gun barrel (1) and the cover is completed, and the trigger line is connected to make the trigger device in a standby state; Step three: the propellant is ignited by the trigger device, and under the action of combustion and detonation driving, the elastic support (2) with heavy metal particles (3) is accelerated to the maximum speed and flies along the ballistic gun barrel (1), and after entering the inner cavity of the pressure relief pipe (5), the propellant combustion gas and flame are rapidly weakened, and the propellant residue is intercepted by the propellant filter (8) and the propellant interception plate (6), reducing the interference with the shooting window, when the elastic support (2) enters the inner cavity of the elastic support separation container (9) at high speed, the elastic support (2) is captured by the elastic support capture separator (11) and moves forward with the spring and the separation device, the heavy metal particles (3) are separated from the elastic support (2) and continue to move forward to the target; Step four: the flying distance and time of the heavy metal particles (3) before hitting the target are recorded by a high-speed camera system to obtain the hitting speed, and the instantaneous damage cavity data of the heavy metal particles (3) after acting on the target are also recorded; Step five: finally, the penetration depth equation of the heavy metal particles on different biological target parts is calculated and fitted according to the relationship between the penetration depth and the impact speed.

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