Protective device for restraining and actively intercepting explosion incidental damage of warhead

Abstract

The invention discloses a protection device for inhibiting the explosion incidental damage of an active interception warhead, and the device comprises a barrier layer which is used for bearing the detonation wave of the active interception warhead; the H-shaped cambered surface rib structure is arranged at the rear end of the barrier layer; the ceramic circular-truncated-cone-shaped protection blocks are connected between the barrier layer and the honeycomb plate, and the area of the front end face is larger than that of the rear end face; the height of the ceramic circular-truncated-cone-shaped protection block is larger than that of the H-shaped arc surface rib structure, the height and density of the ceramic circular-truncated-cone-shaped protection block located at the center are larger than those of the ceramic circular-truncated-cone-shaped protection block located at the periphery, and a ceramic cone can be formed under the pressure effect. The cellular board is used for dispersing and absorbing impact force; the back plate is used for supporting the honeycomb plate and is connected with the front ends of the splayed reinforcing ribs; the rear ends of the multiple splayed reinforced structures are used for being connected with a vehicle body and incline outwards, so that the front ends of the multiple splayed reinforced structures are broken off in the lateral direction under the action of pressure. According to the invention, tactical indexes of incidental damage to the loading vehicle body can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of active interception warhead protection, and in particular to a protection device capable of effectively suppressing incidental damage caused by explosion of an active interception warhead. Background Art

[0002] The active interception warhead system of a tank plays an important role in the tank defense system, and the requirements for reducing the collateral damage of the active interception warhead to the loading vehicle body are getting higher and higher. The current mainstream active interception warheads at home and abroad will cause significant collateral damage to infantry combat coordination personnel and the loading vehicle body when they explode. Due to the limitations of the protective structure of the active interception warhead in service, when the active interception warhead plays a role, it is difficult for the protective structure to effectively reduce the collateral damage to itself. Therefore, there is an urgent need for a protective device that can effectively suppress the collateral damage of the active interception warhead explosion. This technology is not included in the currently disclosed active interception warhead protection system technology. Summary of the invention

[0003] The purpose of the present invention is to provide a protective device for suppressing the collateral damage caused by the explosion of an active interception warhead, and to achieve lateral pressure distribution by crushing ceramic blocks and protective plates, thereby reducing the radial pressure generated by the explosion of the warhead to achieve the protective function.

[0004] The technical solution to achieve the purpose of the present invention is:

[0005] A protective device for suppressing collateral damage caused by explosion of an active interception warhead, comprising:

[0006] The barrier layer is used to carry the blast wave of the active interception warhead;

[0007] The H-shaped arc rib structure is arranged at the rear end of the barrier layer, and can bend backward from the center to the edge after the barrier layer is deformed;

[0008] A plurality of ceramic truncated cone-shaped protection blocks are connected between the barrier layer and the honeycomb panel, and the front surface area is larger than the rear surface area; the height of the ceramic truncated cone-shaped protection block is larger than the height of the H-shaped arc rib structure, and the height and density of the ceramic truncated cone-shaped protection block at the center are larger than those at the peripheral positions, and a ceramic cone can be formed under pressure;

[0009] Honeycomb panels to disperse and absorb impact forces;

[0010] The back plate is used to support the honeycomb panel and connect the figure-eight reinforced front end;

[0011] A plurality of figure-eight ribbed reinforcement structures are arranged symmetrically in the center, and the rear end is used to connect with the vehicle body and is inclined outward, so that under the action of pressure, the front end of the plurality of figure-eight ribbed reinforcement structures is broken laterally to absorb energy and reduce deformation of the back plate.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] The invention designs a protective device for suppressing the collateral damage caused by the explosion of an active interception warhead. The energy absorption and fragmentation of the ceramic truncated cone-shaped protective block and the honeycomb panel can effectively reduce the collateral damage caused by the warhead explosion to the loading vehicle body. The lateral sliding fracture of the compressed figure-eight reinforced structure can effectively achieve lateral pressure distribution, and the alternating use of steel and aluminum materials gives it the advantage of low overall mass of the protective structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 An isometric view of the present invention.

[0015] Figure 2 It is a side view of the present invention (hiding the schematic structure of the warhead).

[0016] Figure 3 It is an isometric diagram of the truncated cone protection block and H-shaped rib structure.

[0017] Figure 4 It is the front view of the ceramic truncated cone protection block.

[0018] Figure 5 A top view of a honeycomb panel. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the invention.

[0020] like Figure 1-5 As shown, a protective device for suppressing the collateral damage caused by the explosion of an active interception warhead in this embodiment is composed of a barrier layer, a buffer layer and a support layer. The barrier layer includes a steel protective block 1 and an aluminum protective front plate 2. The steel protective block 1 is embedded in the center of the aluminum protective front plate 2. The detonation center position of the active interception warhead 8 (used to assist in understanding the overall invention content, not the focus of this design) is the same as the center position of the protective block 1; the back of the aluminum protective front plate 2 is provided with an H-shaped arc rib structure 3, such as Figure 3 The middle H-shaped curved rib structure 3 includes two curved plates 301 arranged in parallel and a horizontal plate connected between the two curved plates 301, forming an H-shaped structure. The height of the curved plate 301 is the highest at the center, and then gradually decreases toward both sides. The height of the center is greater than the height of both sides, so that the center first contacts the honeycomb panel, generating a backward bend from the center to the edge, and after bending, the force is dispersed from the center to both sides (edge). The height of the horizontal plate is less than the height of the curved plate 301, and the distance between the two horizontal plates is less than the distance from the horizontal plate to the end of the curved plate 301.

[0021] The buffer layer includes a honeycomb steel plate 5 and a plurality of ceramic truncated cone-shaped protective blocks 4. The front surface area of ​​the ceramic truncated cone-shaped protective block 4 is larger than the rear surface area to form a conical truncated cone structure. The front surface of the ceramic truncated cone-shaped protective block 4 is connected to the back surface of the protective front plate 2. Figure 4 The side of the ceramic truncated cone block 4 is engraved with multiple straight grooves 31 evenly distributed along the circumferential direction, and the ceramic truncated cone protection block 4 is denser in the explosion center area than in the non-center area (peripheral area), and the cone height is higher (higher than the height of the peripheral area). The height of the ceramic truncated cone block 4 is greater than the height of the arc plate 301, and the height of the arc plate 301 is greater than the height of the horizontal plate. The rear surface of the ceramic truncated cone-shaped protective block in the central area is connected to the front surface of the honeycomb steel plate 5; the supporting layer is composed of an aluminum back plate 6 and an eight-shaped reinforcement structure 7, and multiple eight-shaped reinforcement structures 7 are arranged symmetrically about the center. In this embodiment, three groups of eight-shaped reinforcement structures 7 are provided on the back of the back plate 6, and the rear end of the eight-shaped reinforcement structure 7 is inclined outward, and the inner side of the rear end is provided with an arc chamfer, and the rear end is connected to the loading body by bolts; the three groups of eight-shaped reinforcement structures 7 include a symmetrical first eight-shaped reinforcement 402, a second eight-shaped reinforcement 403, and a third eight-shaped reinforcement 404, the first eight-shaped reinforcement 402 is located in the center position, the second eight-shaped reinforcement 403 and the third eight-shaped reinforcement 404 are arranged in sequence on the outside of the first eight-shaped reinforcement 402, and the inclination angle gradually decreases from the first eight-shaped reinforcement 402 to the third eight-shaped reinforcement 404.

[0022] like Figure 1As shown, when the active interception warhead 8 explodes, as the blast wave propagates downward, the front plate steel protection block 1 is first impacted and deformed, and the aluminum protection plate 2 is then squeezed and deformed, transmitting the compression wave to the front surface of the ceramic truncated cone protection block 4. The front surface has a larger contact area and can withstand greater pressure. A huge compression wave is generated on the front surface of the ceramic truncated cone protection block 4, a part of which is transmitted and reflected on the rear surface of the ceramic truncated cone. When the reflected wave and the compression wave are superimposed and act together on the ceramic truncated cone protection block 4 so that the stress it is subjected to is greater than the yield limit of the material, the internal cracks of the ceramic grow and break rapidly, and then break to form a ceramic cone. The ceramic cone and the ceramic truncated cone have opposite cone directions. In addition, the ceramic truncated cone protection block 4 is engraved with eight linear grooves 31 evenly distributed circumferentially, which makes the ceramic truncated cone more prone to breakage, thereby absorbing energy. Since there are more ceramic truncated cones in the center of the explosion, the height is higher, and the silicon carbide ceramic material with relatively higher toughness is used, the ceramic truncated cone protection blocks in the center of the explosion are affected by the compression wave and the reflected wave first compared to the ceramic truncated cone protection blocks in the edge area, and can withstand greater stress before breaking; the detonation wave compresses the H-shaped arc rib structure 3 on the back surface of the front plate 2 to produce a backward bend perpendicular to the length direction of the arc plate 301, so that the arc plate 301 is more likely to be dispersed to both sides after contacting the honeycomb steel plate 5. The H-shaped arc rib structure 3 and the ceramic truncated cone protection block 4 act together on the front surface of the honeycomb steel plate 5. The honeycomb holes on the honeycomb steel plate 5 are truncated cone-shaped. The truncated cone-shaped honeycomb holes can improve the compressive strength and bending stiffness of the honeycomb steel plate 5, which helps to disperse and absorb the impact force. The honeycomb steel plate 5 transmits the pressure to the aluminum back plate 6, causing it to deform and bend under pressure, compressing the figure-eight reinforcement 7 to break its front end laterally, and the arc structure at the tail of the figure-eight reinforcement 7 makes it easier for the front end to displace laterally and break, absorbing energy to reduce the deformation of the aluminum back plate 6. At the same time, the inclination angle of the inner figure-eight reinforcement 402 gradually decreases toward the inclination angle of the outer figure-eight reinforcement 404, making the area of ​​the inner figure-eight reinforcement structure subjected to higher impact force more likely to displace laterally and break, and the outer figure-eight reinforcement structure achieves a certain support effect.

[0023] Through the fracture, deformation and crushing between the devices, the protective device can effectively absorb the radial pressure generated by the blast wave and convert and disperse it into lateral pressure, ensuring that the loading vehicle body itself will not be deformed by the explosion of the warhead, thereby achieving the tactical indicator of reducing collateral damage to the loading vehicle body.

[0024] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. All technical variations made according to the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. A protective device for suppressing collateral damage caused by the explosion of an active interception warhead, characterized in that: include: The barrier layer is used to carry the blast wave of the active interception warhead; The H-shaped arc rib structure is arranged at the rear end of the barrier layer, and can bend backward from the center to the edge after the barrier layer is deformed; A plurality of ceramic truncated cone-shaped protection blocks are connected between the barrier layer and the honeycomb panel, and the front surface area is larger than the rear surface area; the height of the ceramic truncated cone-shaped protection block is larger than the height of the H-shaped arc rib structure, and the height and density of the ceramic truncated cone-shaped protection block at the center are larger than those at the peripheral positions, and a ceramic cone can be formed under pressure; Honeycomb panels to disperse and absorb impact forces; The back plate is used to support the honeycomb panel and connect the figure-eight reinforced front end; A plurality of figure-eight ribbed reinforcement structures are arranged symmetrically in the center, and the rear end is used to connect with the vehicle body and is inclined outward, so that under the action of pressure, the front end of the plurality of figure-eight ribbed reinforcement structures is broken laterally to absorb energy and reduce deformation of the back plate.

2. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 1, characterized in that: The H-shaped curved rib structure comprises two parallel curved plates and a transverse plate connected between the two curved plates, and the height of the central position of the curved plate is greater than that of the two sides.

3. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 2, characterized in that: The height of the horizontal plate is smaller than the height of the arc-shaped plate, and the distance between the two horizontal plates is smaller than the distance from the horizontal plate to the end of the arc-shaped plate.

4. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 1, characterized in that: The side surface of the ceramic truncated cone block is engraved with a plurality of linear grooves evenly distributed along the circumferential direction.

5. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 1, characterized in that: The inclination angles of the rear ends of the multiple figure-eight reinforced structures gradually decrease from the inside to the outside.

6. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 1, characterized in that: An arc chamfer is arranged on the inner side of the rear end of the figure-eight reinforced structure.

7. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 1, characterized in that: The honeycomb holes on the honeycomb plate are in a truncated cone shape.

8. The protective device for suppressing collateral damage caused by explosion of active interception warhead according to claim 1, characterized in that: The ceramic frustum-cone-shaped protection block is made of silicon carbide ceramic material.

9. The protective device for suppressing collateral damage caused by the explosion of an active interception warhead according to claim 1, characterized in that: The barrier layer includes a steel protection block and an aluminum protection front plate, wherein the steel protection block is embedded in the center of the aluminum protection front plate.

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