A test method and system for mass distribution of warhead fragments

Abstract

The invention discloses a test method and system for the mass distribution of warhead fragments. By combining the penetration condition of the high-speed fragment group produced by the explosion of the warhead to be tested on the target plate with the fragment scattering angle and speed obtained through the test, the Obtaining the mass distribution of fragments not only solves the problem that it is difficult to directly obtain the mass distribution of fragments of a warhead with a large size and a large TNT equivalent explosive inside through experiments; at the same time, it realizes the scattering angle and velocity distribution of fragments can be obtained in a single experiment , effectively improving the test efficiency and saving a lot of manpower, material and financial resources.

Description

technical field [0001] The invention belongs to the technical field of projectile (warhead) fragmentation test, and in particular relates to a test method and system for mass distribution of warhead fragments. Background technique [0002] The fragmentation test is usually to place the projectile in the center of a certain hollow container, and place a medium around the container to decelerate the fragments. After the explosion, the fragments are recovered and grouped according to mass, so as to obtain the number of fragments in different mass ranges, and then use engineering commonly used The Mott distribution (Mott distribution) or Weibull distribution (Weibull distribution) are used to fit the fragment mass distribution data obtained from the experiment, and finally obtain the fragment mass distribution model of the projectile. [0003] Commonly used natural fragmentation projectiles or warhead fragmentation test methods are sand pit test and water explosion test. Accord...

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Problems solved by technology

[0004] To sum up, in the fragmentation test of scaled warheads, although the scaled warheads are usually geometrically similar to the original warheads, the mass distribution of the fragments does not satisfy the law of geometric similarity. There is no mature and reliable method for converting the fragment mass distribution model obtained from the fragmentation test of the scaled warhead into the fragment mass distribution model of the original warhead; in addition, the traditional fragmentation test can only obtain the only parameter of the fragment mass distribution , in order to evaluate the damage ability of the high-speed fragment group produced by the warhead explosion to the target, it is usually necessary to design a comprehensive power test to obtain the scattering angle and velocity distribution of the fragments

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