A bullet structure for improving the ballistic stability of projectile penetrating concrete target plate

A concrete and stability technology, applied in the direction of warheads, ammunition, offensive equipment, etc., can solve problems such as easy deflection of ballistics, and achieve the effect of improving the performance of anti-bounce bullets, improving ballistic stability, and balancing destructive moments

Active Publication Date: 2022-02-01
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a warhead structure for improving the ballistic stability of projectiles penetrating concrete target plates, so as to solve the technical problem that the ballistic deflection of existing warhead structures penetrating concrete target plates is easy

Method used

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  • A bullet structure for improving the ballistic stability of projectile penetrating concrete target plate
  • A bullet structure for improving the ballistic stability of projectile penetrating concrete target plate
  • A bullet structure for improving the ballistic stability of projectile penetrating concrete target plate

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Effect test

Embodiment 1

[0044] This embodiment provides a bullet structure for improving the ballistic stability of the projectile penetrating the concrete target plate, such as Figure 1 to Figure 4 As shown, including the warhead body, the front end of the warhead body is provided with a first round table 1, and the diameter of the upper bottom surface of the first round table 1 is smaller than the diameter of the bottom surface of the first round table 1; a rib 2; the end of the rib 2 away from the first circular platform 1 is the front end of the rib 2, and the other end of the rib 2 is the rear end of the rib 2; the height of the front end of the rib 2 is greater than the height of the rear end of the rib 2; the rear of the rib 2 The diameter at the end is equal to the diameter of the bottom surface of the first circular platform 1; the rib plate 2 is used to improve the ballistic stability of the projectile penetrating the concrete target plate.

[0045] Specifically, the projectile structure i...

Embodiment 2

[0071] This embodiment is used to calculate the trajectory and velocity of the ribbed plate 2 warhead penetrating concrete. Using a ribbed 2 warhead projectile with a mass of 4.2kg, Table 1 shows the specific values ​​of the ribbed 2 warhead size for calculation. The target plate thickness is 0.4m, the concrete compressive strength is 34.26Mpa, and the initial velocity of the projectile is 600m / s.

[0072] Table 1 Shape parameter list of type 2 warhead with ribs

[0073]

[0074] In Table 1, d is the diameter of the bottom surface of the truncated cone, mm; d 1 is the diameter of the upper bottom surface of the second round table 4, mm; d 2 is the diameter of the bottom surface of the second circular platform 4, mm, d 3 is the diameter mm of the upper bottom surface of the first circular platform; d 3 is the 3 diameter mm of the bottom surface of the first circular platform; d 4 is the diameter of the bottom surface of the rib plate 2 mm; w min is the minimum width of...

Embodiment 3

[0079] In this embodiment, the 4.2kg ribbed Type 2 head projectile with an initial velocity of 500m / s and a 25° impact angle obliquely penetrates into a 0.4m thick concrete target plate, and the diameter d1 of the upper bottom surface of the flange is changed, and the diameter is respectively taken as 10.5 mm, 14.5mm and 18.5mm.

[0080] After the penetration is over, draw the deflection angle time history curve as attached Figure 7 As shown, as the diameter of the upper bottom surface of the flange increases, the deflection angle of the ribbed type 2 projectile body decreases and the velocity also decreases faster, which is due to the increase of the axial force, the increase of the moment arm, and the resistance deflection caused by the axial force The moment of the projectile increases, so the deflection angle of the projectile body decreases. When designing the projectile body, the diameter of the upper bottom surface of the flange can be appropriately increased to increa...

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Abstract

The invention relates to a warhead structure for improving the ballistic stability of a projectile penetrating a concrete target plate, which belongs to the technical field of a projectile penetrating a concrete target plate, and solves the problem of easy deflection of the ballistic trajectory when the projectile structure penetrates a concrete target plate in the prior art technical problems. The projectile structure of the present invention comprises a projectile body, the front end of the projectile body is provided with a first circular platform, the diameter of the upper bottom surface of the first circular platform is smaller than the diameter of the lower bottom surface of the first circular platform; the outer surface of the first circular platform is provided with a plurality of ribs along the generatrix direction of the first circular platform The end of the rib far away from the first circular platform is the front end of the rib, and the other end of the rib is the rear end of the rib; the height of the front end of the rib is greater than the height of the rear end of the rib; the diameter of the rear end of the rib is equal to the first circular platform Bottom diameter. The invention can suppress the deflection of the projectile and improve the ballistic stability of the projectile penetrating the concrete target plate. At the same time, when the ballistic stability is improved, the lateral force and moment acting on the projectile are reduced, which is more conducive to preserving the projectile and the fuze.

Description

technical field [0001] The invention relates to the technical field of projectile structure design, in particular to a projectile structure for improving the ballistic stability of a projectile penetrating a concrete target plate. Background technique [0002] Due to the variety of target building shapes and the complexity of the projectile structure, the projectile penetrates / penetrates the concrete target plate and deflects the ballistic trajectory, which affects the damage performance. The ballistic stability of the warhead penetrating the concrete target can be improved by improving the shape of the warhead head. [0003] The general method to solve the above problems is to increase the strength of the projectile body or to adopt a blunt head. Improving the strength of the projectile is mainly by increasing the thickness of the metal shell or replacing the metal material, so that the projectile can withstand higher lateral overload, thereby preventing the projectile fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B12/02
CPCF42B12/02
Inventor 李伟王昊
Owner BEIJING MECHANICAL EQUIP INST
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