30-40g cylindrical fragment 1100-1700m/s acceleration bullet support and method

Abstract

The invention belongs to the technical field of terminal ballistic tests, and particularly relates to a subcaliber bullet shooting auxiliary device. A 30-40g cylindrical fragment 1100-1700m / s acceleration bullet support comprises a bullet support body and a bottom pusher (12) in threaded connection. Speed-free gap loading of a 30-40g large mass cylindrical fragment in a speed range between 1100-1700m / s by a ballistic cannon is realized, accuracy of a loading speed of the large mass fragment is improved, and a test cost is reduced; stable separation between the fragment and the bullet support is realized, the stability of the fragment fly is improved, and well target hitting gesture is realized; chamber pressure directly acts on the bottom pusher; an attack angle when the fragment flies is avoided and damage to a bore is reduced; negative weight of the bullet support is reduced by the material of the bullet support and structural strength of the bullet support is ensured; an inner diameter of a placing position loading the bullet support is changed, the device is suitable for the cylindrical fragments with different diameters in a mass range of 30-40g and well universality is realized.

Description

technical field [0001] The invention belongs to the technical field of impact dynamics and terminal ballistic tests, and in particular relates to a sub-caliber projectile launching auxiliary device. Background technique [0002] Loading the projectile / fragment to high speed to achieve high-speed impact on the target is a key technology in the research on the damage effect of fragments and the dynamic mechanical behavior of Taylor rods. The projectile / fragment is loaded in the barrel, and the bullet holder is an important part to realize the loading. Its main function is to drive and guide the movement of the projectile / fragment under the action of the pressure generated by the combustion of the gunpowder gas in the chamber to achieve a higher At the same time, the high speed ensures a good initial flight attitude of the projectile / fragment, and effectively protects the barrel to avoid the occurrence of phenomena such as slashing. [0003] At present, in domestic fragment pe...

AI Technical Summary

Problems solved by technology

For the loading of light gas guns, firstly, the cost is high and the test time is long, and secondly, it is difficult to effectively control the loading speed. If the ballistic limit velocity is obtained by the 6-projectile method, a large number of tests are needed; thus the test cost is high

In addition, when the light gas gun is loaded at high speed, due to the large size of the bullet holder, it is easy to cause interference during the aerodynamic separation of the fragments and the bullet holder, which affects the target attitude of the fragments. For any frontal impact test with a 0-degree impact angle, multiple shots are required. Increased test costs again

Images