战斗部远场水下爆炸对舰船冲击损伤评估

摘要

利用128核并行计算版ABAQUS软件对爆破型战斗部由远至近攻击舰船的5个工况进行数值模拟，给出主甲板、内底和底龙骨等重要部位的加速度响应，分析冲击因子为0.24~0.78时加速度响应的变化规律。利用实船爆炸试验测量结果对所用仿真算法进行对比验证，并提出采用相对加速度冲击因子的表征参数来评价战斗部远场水下爆炸对靶船的冲击损伤效果。研究成果可为爆破型战斗部毁伤能力评估及舰船结构抗冲击性能评估提供参考。%This paper creates simulations of five loaded cases of a ship subjected to blasting warhead explo⁃sions from afar to near using the ABAQUS codes of 128 cores parallel version. The acceleration response of important locations such as the main deck, inner bottom,and bottom keel are obtained. The varying rule of different shock factors from 0.24 to 0.78 are analyzed, and the presented simulation arithmetic is then veri⁃fied with the real ship shock test measuring results. A token parameter of relative acceleration shock factor is proposed to evaluate the ship shock damage subjected to warhead far-field underwater explosions. The results can provide great references for evaluation of potential blasting warhead damage and ship structure anti-shock capacity.