Analytical characterization method for transient parameters in long rod penetration process

Abstract

The invention provides an analytical characterization method for transient parameters in a long rod penetration process. The analytical characterization method takes an Alekseevskii-Tate model as a basis, solves an implicit solution of a control equation, and carries out linear simplified approximation on logarithmic expressions of the relative lengths of the residual projectile bodies, so as to obtain two groups of explicit theoretical analytical solutions, so that analytical representation of transient parameters such as the projectile tail speed, the penetration speed, the projectile body length and the penetration depth in the long rod penetration process is realized, and explicit functions of the projectile tail speed, the penetration speed, the projectile body erosion length and thepenetration depth to time are accurately given, and the engineering application problem of the model is further solved. The invention provides a simple and rapid method for evaluating the penetrationcapability of the long rod projectile for researchers and engineering designers, can be conveniently applied to design and engineering application of long rod kinetic energy weapons or protective structures and the like, and provides a convenient, rapid and reliable reference basis for research of long-pole penetration problems.

Description

technical field [0001] The invention belongs to the technical field of weapon design and protection, and in particular relates to an analytical characterization method for transient parameters such as projectile tail velocity, penetration velocity, projectile body length and penetration depth during the penetration process of a long-rod kinetic energy weapon. Background technique [0002] The core of a kinetic energy weapon is a long-rod core made of high-density metals such as tungsten alloys and depleted uranium alloys. Long-rod projectiles have a large aspect ratio, high density, and fast flight speed (several times the speed of weapons), and have high kinetic energy per unit cross-sectional area, so they have strong penetration and penetration capabilities. Since the 1960s, long rod rounds made of dense metal have replaced much shorter steel rounds as tank ammunition. [0003] At present, the most important classical theoretical model to study the penetration of long ro...

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Problems solved by technology

[0006] The present invention proposes an analytical characterization method for the transient parameters of the long-rod penetration process, in order to solve how to realize the transient parameters such as tail velocity, penetration velocity, projectile body length and penetration depth in the long-rod penetration process. Technical Issues of Analytical Representation

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