基于代理模型技术的玻璃纤维复合装甲抗弹性能多目标优化设计

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (18) : 16-24.

论文

王威，胡鹏程，张攀，刘均，程远胜

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Multi-objective optimization of the ballistic resistance of a glass fiber reinforced composite armor based on a surrogate model

WANG Wei，HU Pengcheng，ZHANG Pan，LIU Jun，CHENG Yuansheng

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文章历史 +

摘要

针对一种由玻璃纤维复合材料和高强钢组成的复合装甲结构，开展其在圆柱形弹体侵彻下弹道行为研究。基于验证后的数值模型，采用Kriging代理模型技术，建立了复合装甲结构抗弹性能快速预报代理模型，检验了代理模型的预报精度，并开展了变量相关性分析。建立了玻璃纤维复合装甲抗弹性能多目标优化设计数学模型，采用NSGA-Ⅱ多目标遗传算法，获得了复合装甲结构多目标优化设计帕累托前沿。结果表明，弹道极限速度与芯层厚度的线性相关性最强，与后置面板厚度的线性相关性最弱；靶板面密度与芯层厚度的线性相关性最强，与前后面板厚度的线性相关性相等。针对典型复合装甲结构初始设计方案，通过开展多目标优化设计，优化方案能够在相同抗弹性能的前提下使面密度降低15.64%，或者在相同面密度水平的前提下使弹道极限速度提高14.75%。
关键词：复合装甲；玻璃纤维增强材料；数值仿真；代理模型；多目标优化

Abstract

Multi-objective optimization of ballistic resistance of glass fiber reinforced composite armor based on surrogate model
Wei Wang 1 Pengcheng Hu 1 Pan Zhang 1 Jun Liu 1 Yuansheng Cheng 1
(1. School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074)
Abstract: The ballistic behavior of a novel composite armor consisting of high strength steel panels and glass fiber reinforced polymer (GFRP) core is investigated numerically in present study. Based on the verified numerical model, a surrogate model with good accuracy is constructed to rapidly predict the ballistic performance of the composite armor using the Kriging technique. A correlation analysis among the thickness of each layer, the areal density and the ballistic limit is conducted. Finally, a mathematical model is established for the multi-objective optimization design of the composite armor. The correlated Pareto front of the composite armor is obtained using the NSGA-Ⅱ multi-objective genetic algorithm. The results show that the ballistic limit has the strongest correlation with the core thickness and the weakest correlation with the rear panel thickness. The areal density has the strongest correlation with the core thickness and the equal correlation with two face sheets. Through the multi-objective optimization design, an initial design of composite armor gains 15.64% reduction of the areal density or 14.75% increase of the ballistic limit with the other index keeping the same level.
Key words: composite armor; glass fiber reinforced polymer (GFRP); numerical simulations; surrogate model; multi-objective optimization (MDO)

导出引用

王威，胡鹏程，张攀，刘均，程远胜. 基于代理模型技术的玻璃纤维复合装甲抗弹性能多目标优化设计[J]. 振动与冲击, 2022, 41(18): 16-24

WANG Wei，HU Pengcheng，ZHANG Pan，LIU Jun，CHENG Yuansheng. Multi-objective optimization of the ballistic resistance of a glass fiber reinforced composite armor based on a surrogate model[J]. Journal of Vibration and Shock, 2022, 41(18): 16-24

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