An equivalent target plate damage probability calculation mathematics model and damage evaluation method  

作　　者：Hanshan Li Xiaoqian Zhang 

机构地区：[1]School of Electronic and Information Engineering,Xi'an Technological University,Xi'an 710021,China

出　　处：《Defence Technology（防务技术）》2024年第11期82-103,共22页Defence Technology

基　　金：supported by National Natural Science Foundation of China (Grant No. 62073256);the Shaanxi Provincial Science and Technology Department (Grant No. 2023-YBGY-342)。

摘　　要：Aiming at the requirement of damage testing and evaluation of equivalent target plate based on the explosion of intelligent ammunition, this paper proposes a novel method for damage testing and evaluation method of circumferential equivalent target plate. Leveraging the dispersion characteristics parameters of fragment, we establish a calculation model of the fragment power situation and the damage calculation model under the condition of fragment ultimate penetration equivalent target plate. The damage model of equivalent target plate involves the fragment dispersion density, the local perforation damage criterion, the tearing damage model, and the damage probability. We use the camera to obtain the image of the equivalent target plate with fragment perforation, and research the algorithm of fragment distribution position recognition and fragment perforation area calculation method on the equivalent target plate by image processing technology. Based on the obtained parameters of the breakdown position and perforation area of fragments on equivalent target plate, we apply to damage calculation model of equivalent target plate, and calculate the damage probability of each equivalent target plate, and use the combined probabilistic damage calculation method to obtain the damage evaluation results of the circumferential equivalent target plate in an intelligent ammunition explosion experiment. Through an experimental testing, we verify the feasibility and rationality of the proposed damage evaluation method by comparison, the calculation results can reflect the actual damage effect of the equivalent target plate.

关 键 词：Target damage evaluation Damage probability FRAGMENTS Equivalent target plate Image processing 

分 类 号：TJ410.6[兵器科学与技术—火炮、自动武器与弹药工程]