A fire light attenuation system during projectile armor penetration
By using a target plate filter device and a side light blocking device in the armor-piercing test, and utilizing a fire light attenuation system consisting of a flame-retardant blanket and a support frame, the problem of high-speed cameras being interfered with by fire light was solved, and clear capture of projectile data within 2 meters behind the target was achieved.
Patent Information
- Application Number
- CN202211232879.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-09
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2042-10-09
AI Technical Summary
During the armor-piercing test, the high-speed camera was interfered by the muzzle flash and the target impact flash, and was unable to clearly capture the dynamic deformation and speed data of the projectile within 2 meters behind the target.
A target plate filter device and a lateral light blocking device are used, and a fire light attenuation system consisting of a ballistic flame retardant blanket and a support frame is utilized to block and attenuate flame interference, ensuring that the high-speed camera can clearly capture projectile phenomena within 2 meters behind the target.
It effectively reduces or eliminates the interference of fire light, improves the shooting effect of high-speed cameras within 2 meters behind the target, and increases the success rate of obtaining projectile posture, dynamic structure and speed data.
Smart Images
Figure CN115597446B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of experimental testing, and in particular to a fire light attenuation system. Background Art
[0002] The purpose of the armor-piercing test is to test the penetration ability of the projectile into the steel plate. There are two current testing methods. One is to recover the projectile after the test to observe the final state of deformation and damage of the projectile; the other is to use a high-speed camera to follow the entire process of the projectile flying, hitting the target, and flying out from behind the target, and strive to observe and test the projectile speed and the real-time deformation of the projectile during the target collision process. However, due to the interference of the muzzle flash and the target flash, it is difficult for the high-speed camera to capture valuable data such as the dynamic deformation of the projectile within 2 meters behind the target and the target exit speed measurement. Figure 1 As shown, after the test, the analysis of data within 2 meters behind the target is usually abandoned.
[0003] Muzzle flash interference is primarily caused by the large amount of flame generated by the burning propellant in the barrel during firing. This flame follows the projectile out of the muzzle and reaches the target. After being blocked by the target, it circulates around the target plate and behind it. The flame that circulates around the side of the target plate interferes with the high-speed camera's image, resulting in the image behind the target being dominated by the flame, making it difficult to clearly see the projectile.
[0004] The flash from the impact is even more detrimental to filming. When a projectile penetrates a steel plate, the target plate near the impact point absorbs the projectile's powerful kinetic energy and instantly undergoes adiabatic shear failure, dissipating the absorbed energy through plastic deformation and high-temperature radiation. The temperature and brightness of the bull's eye at this point are extremely high and persist for a long time, preventing high-speed cameras from capturing the projectile's flight posture, structural dynamic response, and real-time speed behind the target in this high-temperature, high-brightness environment within a distance of 2 meters.
[0005] In summary, the combined interference of muzzle flash and target flash affects high-speed camera dynamic capture. This can lead to the inability to capture valuable data such as projectile deformation and flight speed within two meters of the target. In severe cases, the camera is filled with flash from the moment of impact until the end of the capture, making even basic data impossible to capture. Therefore, eliminating the influence of muzzle flash and target flash on high-speed capture is a crucial technical challenge and a prerequisite for successfully obtaining valuable research data. Summary of the Invention
[0006] To overcome the shortcomings of existing technologies, the present invention provides a system for attenuating projectile flash during armor penetration. This system specifically eliminates interference from flames and bright light during testing, enabling high-speed cameras to clearly capture various phenomena up to two meters behind the target while also improving the success rate of acquiring essential data beyond that point. The system boasts a simple principle, low cost, easy operation, and strong versatility.
[0007] The technical solution adopted by the present invention to solve its technical problem is:
[0008] A system for attenuating fire during projectile armor penetration comprises a target plate filter device and a lateral light-blocking device, wherein the target plate filter device adopts a ballistic flame-retardant blanket, which is closely attached to the surface of the target plate and arranged vertically. A high-speed camera is located on one side of the target plate. The lateral light-blocking device comprises a support frame and a lateral flame-retardant blanket. The lateral flame-retardant blanket is used to block the burning flame of propellant ejected from the muzzle direction. The support frame is used to suspend and fix the flame-retardant blanket. The lateral light-blocking device is easy to load and unload and is reusable. The support frame is placed perpendicular to the ground and is located on the side of the target plate close to the high-speed camera. The support frame and the target plate are aligned and closely attached. The lateral flame-retardant blanket is hung on the support frame to form a flame-retardant wall.
[0009] When ignited and fired, the projectile flies out of the muzzle along with the burning flame of the propellant. The projectile hits the center of the target plate, penetrates the target plate, and then continues to penetrate the ballistic flame-retardant blanket on the surface of the target plate. At this time, the target impact fire is blocked by the ballistic flame-retardant blanket. Only a small amount of the burning flame of the propellant follows the projectile through the bullet holes in the target plate and the ballistic flame-retardant blanket. This part of the flame is always located behind the projectile body, so it will not interfere with the shooting of the high-speed camera within 2 meters behind the target plate.
[0010] When the projectile penetrates the ballistic flame-retardant blanket behind the target plate, it isolates the high temperature and bright light generated by the target impact, and can also attenuate the muzzle flame following from the bullet hole position in the center of the target plate; the lateral light blocking device consists of a support frame and a flame-retardant blanket. The support frame is used to suspend and support multiple flame-retardant blankets, and the flame-retardant blanket is used to block and delay the spread of muzzle flames to the side and rear of the target plate, eliminating interference for high-speed camera shooting.
[0011] When the target plate is tilted to the ground, the ballistic flame retardant blanket is bound to the surface of the target plate.
[0012] The ballistic flame retardant blanket has the same shape and size as the target plate, and the thickness of the ballistic flame retardant blanket is not less than 5 cm.
[0013] There are two ballistic flame retardant blankets, which are respectively located on two surfaces of the target plate.
[0014] The ballistic flame retardant blanket is made of fire-resistant fiber and is used to block the high temperature, flames and burning fragments generated by the instantaneous adiabatic shearing of the target steel plate when the target steel plate is impacted and damaged at the bull's eye position.
[0015] The height of the support frame is not lower than the upper edge of the target plate, and the width is not less than 3 meters.
[0016] The upper edge of the support frame is provided with a hook, which suspends the lateral flame retardant blanket and splices it into a fire retaining wall.
[0017] The beneficial effect of the present invention is that the fire light attenuation system during the armor-piercing process of the projectile is based on the current situation that the fire light during the armor-piercing test has an adverse effect on high-speed photography. The cause of the fire light is analyzed and flame-retardant materials are used to block and attenuate the light source in a targeted manner. Among them, the muzzle flame is blocked by a lateral light-blocking device, and the target-impacting fire light is attenuated by the flame-retardant blanket on the surface of the target steel plate. The present invention can reduce or eliminate the impact of the fire light on photography, enabling a high-speed camera to capture and analyze the posture of the projectile, dynamic structural response, target exit speed, etc. within a range of 2 meters behind the target plate, thereby improving the success rate of data acquisition. The present invention has a simple principle, low cost, easy operation, and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the fire light attenuation system during the armor-piercing process of the projectile of the present invention.
[0019] Figure 2 The flash from the impact of the target affects the high-speed photography effect of the projectile hitting the target. Figure 2 (a) is the shooting effect at 0ms of hitting the target. Figure 2 (b) is the shooting effect at 5ms after hitting the target. Figure 2 (c) is the shooting effect at 10ms after hitting the target. Figure 2 (d) is the shooting effect at 20ms after hitting the target.
[0020] Among them, 1- ballistic flame-retardant blanket, 2- support frame, 3- lateral flame-retardant blanket, 4- high-speed camera, 5- muzzle, 6- burning flame, 7- projectile, 8- target plate, 9- bullet hole. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to the accompanying drawings and examples.
[0022] Reference Figure 1 and Figure 2 The exemplary embodiments of the present invention are described in detail. The description of the exemplary embodiments is for illustrative purposes only and is in no way intended to limit the invention, its application, or uses.
[0023] like Figure 1 As shown, according to a fire light attenuation system during projectile armor penetration of the present invention, a ballistic flame retardant blanket (1) is naturally arranged vertically close to the surface of a target plate (8); if the target plate (8) is in an inclined state, the ballistic flame retardant blanket (1) needs to be tied to the surface of the target plate (8); a support frame (2) is placed perpendicular to the ground and is located between the target plate (8) and the high-speed camera (4); the support frame (2) and the target plate (8) are placed side by side and close to the side of the target plate (8); and lateral flame retardant blankets (3) are hung side by side on the support frame (2) to form a flame retardant wall.
[0024] When ignited and fired, the projectile (7) flies out of the muzzle (5) together with the burning flame (6) of the propellant, wherein the projectile (7) hits the center of the target plate (8), penetrates the target plate (8), and then continues to penetrate the ballistic flame-retardant blanket (1) on the surface of the target plate (8). At this time, the target impact fire light is blocked by the ballistic flame-retardant blanket (1), and only a small amount of the burning flame (6) of the propellant follows the projectile (7) through the bullet hole (9) of the target plate (8) and the ballistic flame-retardant blanket (1), and this part of the flame is always located behind the projectile body, so it will not interfere with the shooting of the high-speed camera (4) within 2 meters behind the target plate (8).
[0025] The combustion flame (6) generated by the propellant will fill the entire shooting field of the high-speed camera (4) after being ejected from the muzzle (5). When a flame retardant wall composed of a support frame (2) and a lateral flame retardant blanket (3) is used, the flame that would originally spread to the side of the target plate is blocked by the flame retardant wall, so that there is no combustion flame filling between the projectile (7) and the high-speed camera (4), eliminating the influence of the combustion flame (6) on the shooting.
[0026] In summary, the target plate filter device can filter out most of the target impact light and the combustion flames that follow from the bullet hole (9); the lateral light blocking device can delay and block the spread of the muzzle flash to the space between the projectile (7) and the high-speed camera (4). After the interfering light source is blocked and attenuated, the high-speed camera (4) can clearly capture and measure the contour of the projectile (7) within 2 meters behind the target, the real-time deformation of the shell, the speed change and other data.
Claims
1. A system for attenuating flash during projectile armor penetration, comprising a target plate light filtering device and a lateral light blocking device, characterized in that: In the fire light attenuation system during the projectile armor penetration process, the target plate filter device adopts a ballistic flame retardant blanket, which is closely attached to the surface of the target plate and arranged vertically. The high-speed camera is located on one side of the target plate. The lateral light blocking device includes a support frame and a lateral flame retardant blanket. The lateral flame retardant blanket is used to block the burning flame of the propellant ejected from the muzzle. The support frame is used to suspend and fix the flame retardant blanket. The support frame is placed perpendicular to the ground and is located on the side of the target plate close to the high-speed camera. The support frame and the target plate are aligned and closely attached. The lateral flame retardant blanket is suspended on the support frame to form a flame retardant wall. When ignited and fired, the projectile flies out of the muzzle together with the burning flame of the propellant. The projectile hits the center of the target plate, penetrates the target plate, and then continues to penetrate the ballistic flame-retardant blanket on the surface of the target plate. At this time, the target impact fire is blocked by the ballistic flame-retardant blanket. Only a small amount of the burning flame of the propellant follows the projectile through the bullet holes in the target plate and the ballistic flame-retardant blanket. The burning flame of the propellant is always located behind the projectile body, so it will not interfere with the shooting of the high-speed camera within 2 meters behind the target plate.
2. The system for attenuating projectile fire during armor penetration according to claim 1, characterized in that: When the target plate is tilted to the ground, the ballistic flame retardant blanket is bound to the surface of the target plate.
3. The system for attenuating fire during projectile armor penetration according to claim 1, characterized in that: The ballistic flame retardant blanket has the same shape and size as the target plate, and the thickness of the ballistic flame retardant blanket is not less than 5 cm.
4. The system for attenuating projectile fire during armor penetration according to claim 1, characterized in that: There are two ballistic flame retardant blankets, which are respectively located on two surfaces of the target plate.
5. The system for attenuating fire during projectile armor penetration according to claim 1, characterized in that: The ballistic flame retardant blanket is made of fire-resistant fiber and is used to block the flames and burning fragments generated by the instantaneous adiabatic shearing of the target steel plate when the target steel plate is impacted and damaged at the bull's eye position.
6. The system for attenuating flash during armor penetration according to claim 1, characterized in that: The height of the support frame is not lower than the upper edge of the target plate, and the width is not less than 3 meters.
7. The system for attenuating projectile fire during armor penetration according to claim 1, characterized in that: The upper edge of the support frame is provided with a hook, which suspends the lateral flame retardant blanket and splices it into a fire retaining wall.