为了分析爆炸冲击波对轻型装甲车辆底装甲的毁伤规律,在确定底装甲遭受爆炸冲击波毁伤主要影响因素的基础上,采用数值仿真方法进行毁伤效应研究。利用非线性动力学软件AUTODYN进行有限元建模,重点对底装甲厚度、材料、结构和爆距等因素对装甲底板遭爆炸冲击波毁伤的影响规律进行了研究。结果表明单一金属结构中均质装甲的防护性能最优,与复合装甲防护性能相似,硬铝防护性能最差。V形底装甲结构角度为10°时综合防护性能最佳,如果在V形板上加装平板后的抗毁伤能力更强。研究结果将对轻型装甲车辆底部防护与毁伤效能评估提供基础。

Blast shock wave damage effects were analyzed and main influence parameters about light armored vehicle bottom damage effects against blast shock wave were identified, which based on damage rule was researched using numerical simulation method. Finite element models were built using non-linear dynamics software of AUTODYN. Influence rules about bottom armor damage effects affected by such key parameters as bottom armor thickness, material, construct and explosion distance were studied. Results show that the single metal structure in homogeneous armor protection has the best optimal performance and dural's protective performance is the worst. When the angle is 10 degrees, V armor structure comprehensive protective performance is the best. After installing mounted flat, anti-damage ability is stronger. Results can provide reference to light armored vehicle bottom defense and damage effectiveness assessment.