Staged metal fragment recovery device for ballistic test

A recovery device and ballistic test technology, which is applied in the test of ammunition, warhead collectors, ammunition, etc., can solve the problems of incomplete recovery, difficult recovery of metal fragments and punching plugs, etc., and achieve effective interception and excellent buffering and energy absorption. , easier to search and recycle

Active Publication Date: 2022-05-10
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a hierarchical metal fragment recovery device for ballistic tests, the recovery device adopts a layered recovery structure unit composed of aramid layer, liquid layer and PE layer, which can effectively intercept metal fragments, Moreover, the secondary deformation of metal fragments in the recycling process is avoided; by adjusting the number of recycled structural units, the recovery of metal fragments under different speed conditions can be realized; according to the energy input value of metal fragments in specific tests and the energy of recycled structural units The absorption value can obtain the final stop position of metal fragments, realize efficient recovery of metal fragments, and solve the problem of difficult and incomplete recovery of metal fragments and plugs in ballistic tests for a long time

Method used

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  • Staged metal fragment recovery device for ballistic test
  • Staged metal fragment recovery device for ballistic test
  • Staged metal fragment recovery device for ballistic test

Examples

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Effect test

Embodiment 1

[0027] When used to recover cylindrical metal fragments with a residual mass of 17.01g and a residual velocity of 365m / s, the adopted hierarchical metal fragment recovery device includes a bottom plate 1, a movable side plate 2 and a recovery structural unit 3, such as figure 1 and figure 2 shown; in the following expressions, the length direction of the base plate 1 is taken as the front and rear directions, and the width direction thereof is taken as the left and right directions;

[0028] The recovery structural unit 3 is a layered structure composed of fixed steel plate 7, aramid fiber layer 4, fixed steel plate 7, liquid layer 5, fixed steel plate 7, PE layer 6 and fixed steel plate 7 from the front surface to the back plate surface. Composite structures such as figure 1 and figure 2 shown; wherein, the fixed steel plate 7 is provided with a central incident hole and bolt holes positioned at the four corners of the fixed steel plate 7, and three gaps are formed betwee...

Embodiment 2

[0049] When used to recover spherical metal fragments with a residual mass of 7.8g and a residual velocity of 688m / s, the hierarchical metal fragment recovery device used includes a bottom plate 1, a movable side plate 2 and a recovery structural unit 3; in the following expressions, the bottom plate 1 The length direction is the front and rear directions, and the width direction is the left and right directions;

[0050] The recovery structural unit 3 is a layered structure composed of fixed steel plate 7, aramid fiber layer 4, fixed steel plate 7, liquid layer 5, fixed steel plate 7, PE layer 6 and fixed steel plate 7 from the front surface to the back plate surface. Composite structure; wherein, the fixed steel plate 7 is provided with a central incident hole and bolt holes located on the four corners of the fixed steel plate 7, three gaps are formed between the four fixed steel plates 7, and the aramid fiber layer 4 is placed in the first gap in front It is connected with ...

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Abstract

The invention relates to a graded metal fragment recovery device for a ballistic test, and belongs to the technical field of ballistic tests. The recycling device comprises a bottom plate, a movable side plate and recycling structure units, the n recycling structure units are arranged in the length direction of the bottom plate with the length direction of the bottom plate as the front-back direction and the width direction of the bottom plate as the left-right direction, and the lower ends of fixed steel plates of the recycling structure units are fixedly connected with the bottom plate. The two movable side plates are symmetrically installed on the left side and the right side of the bottom plate, and the upper ends of the movable side plates are connected with the fixed steel plate through hinges. The layered recovery structure unit composed of the aramid fiber layer, the liquid layer and the PE layer is adopted to effectively intercept the metal fragments, secondary deformation of the metal fragments in the recovery process is avoided, the number of the recovery structure units is adjusted and controlled, recovery of the metal fragments under different speed conditions can be achieved, and the recovery efficiency is improved. And the recovery device is easy to search and recover the metal fragments.

Description

technical field [0001] The invention relates to a staged metal fragment recovery device for ballistic tests, which belongs to the technical field of ballistic tests. Background technique [0002] The ballistic experiment is the main experimental method to verify the penetration power of warhead fragments, and the analysis of the shape and quality of the residual fragments in the experiment is an important indicator to judge its penetration ability. Therefore, the complete and efficient recovery of residual fragments is very important for the development of ballistic experiments. Significant. [0003] At present, the traditional fragment recovery methods usually use water tank recovery method, metal box recovery method, etc. These methods have the following disadvantages in the process of fragment recovery: (1) It takes too long to perform the first round of experiments, and it is cumbersome to replace recycled materials; (2) It is not fully suitable for the recovery of frag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42B35/00F41J13/00
CPCF42B35/00F41J13/00Y02P10/20
Inventor 黄广炎薛浩崔欣雨王涛刘瀚
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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