Numerical simulation of the optimal design of the hypercumulation warhead structure

DOI:	10.11809/bqzbgcxb2023.05.015
Keywords:	hypercumulation jet; auxiliary liner; orthogonal optimization; regression fitting
Abstract:	For the existing configuration of truncated hypercumulation jet, this paper adopts the orthogonal design optimization method to set the existing four sizes of circular plate shaped auxiliary liners as parameters and select five horizontal factors. Numerical simulation experiments are carried out according to orthogonal experimental design tables to determine the optimized structural parameters. The change of detonation wave propagation during the formation of hypercumulation jet before and after optimization is analyzed, and it is found that, after optimization, the pressure of the liner at the axis is greater than that of the existing truncated hypercumulation jet structure. The uniformity of the variance of each factor is analyzed on 25 sets of experimental data, and the influence law of each factor on the hypercumulation jet is obtained. In addition, fitting operation of the linear regression equations is carried out to obtain the prediction formula of hypercumulation jet formation. Finally, the numerical simulation experiment of the optimized jet formation process is carried out to extract the data. Through comparative analysis, the linear regression equation obtained is basically consistent with the numerical simulation results. The research results of this paper have certain reference value for the structural design of hypercumulation jet charges.
Issue:	Vol. 44 No. 5 (2023)
Published:	2023-05-28
PDF HTML