Influence of configuration parameters on the penetration performance of shaped charge jet

DOI:	10.11809/bqzbgcxb2023.07.020
Keywords:	shaped charge jet; the configuration parameter; the orthogonal design; numerical simulation
Abstract:	The penetration ability of jet formed by shaped charge is mainly determined by the cone angle of a liner (α), the thickness of a liner (β), the length to diameter ratio of charge (γ) and the thickness of the charge shell (d). In order to improve jet penetration efficiency, it is necessary to comprehensively consider the influence of (various factors on penetration efficiency when the charge structure is designed. The process of jet formation with different charge structures is numerically simulated. The residual velocity of the jet head and the effective length of the jet at a position of 1.5 times the blasting height are taken as the basis for evaluating the penetration ability of the jet. Orthogonal experimental design is carried out for the above four factors to explore the influence degree of each factor. An experiment of jet penetrating the target plate is carried out to verify the accuracy of the simulation method. The primary and secondary orders of each factor on the jet head velocity are as follows: β>α>d>γ. The primary and secondary orders of each factor on the effective length of the jet are as follows: α>β>d>γ. The research results can provide reference for the structural design of shaped charge, and the charge structure can be designed according to the influence degree of each parameter.
Published:	2023-07-28
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