Warhead fragment mass distribution test method and system

Abstract

The invention discloses a warhead fragment mass distribution test method and system. The penetration condition of a target plate caused by a high-speed fragment group generated by the explosion of a to-be-tested warhead obtained through a test is combined with a fragment scattering angle and speed, and the mass distribution of fragments is obtained through fitting, so that the problem that the mass distribution of the fragments of the large-size warhead filled with the explosive with the large TNT equivalent is difficult to directly obtain through the test is solved; and meanwhile, the flying angle and speed distribution of the fragments can be obtained through a single experiment, so that the test efficiency is effectively improved, and a large amount of manpower, material resources and financial resources are saved.

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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