活性材料侵彻体高过载条件下安全性分析  

Safety analysis of reactive material penetrator under high overload conditions

作　　者：谭波 谭晟 芦永进 杨世玺 TAN Bo;TAN Sheng;LU Yongjin;YANG Shixi(College of Weaponry Engineering,Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学兵器工程学院,武汉430033

出　　处：《海军工程大学学报》2024年第4期92-97,共6页Journal of Naval University of Engineering

基　　金：海军工程大学自主立项基金资助项目(2022507150)。

摘　　要：为研究超高速发射条件下力学过载环境对活性侵彻体的作用特性,构建了侵彻体一维应力波传播模型,在活性材料PTFE和Al的质量分数比为73.5%∶26.5%、施加加速度过载33000g、持续时间10 ms的条件下,得到了活性内芯所受最大应力为62.56 MPa。基于LS-DNYA仿真软件,构建了侵彻体模型,并对其进行验模,仿真结果显示,出口速度达到2474.5 m/s,活性内芯在发射中的最大应力为59.35 MPa,理论和仿真误差为5.12%,未达到活性材料反应阈值压力。结果表明:在超高速过载环境下,该活性材料的配比方案满足超高速条件下的安全性要求。In order to study the action characteristics of mechanical overload environment on reactive penetrator under ultra-high-speed launching conditions,the one-dimensional stress wave propagation model of the penetrator was constructed under the condition that the mass fraction ratio of the reactive material PTFE and Al was 73.5%∶26.5%,while the acceleration overload was applied to 33000 g with the duration of 10 ms,and the maximum stress of the reactive core obtained was 62.56 MPa.Based on the LS-DNYA simulation software,the penetrator model was constructed and tested.The simulation showes that the outlet velocity reaches 2474.5 m/s,the maximum stress of the reactive core in the launch is 59.35 MPa,and the theoretical and simulation error is 5.12%,which does not reach the threshold pressure of the reactive material reaction.The results show that the reactive material ratio scheme meets the safety requirements under ultra-high speed overload environment.

关 键 词：活性材料 高过载 安全性 LS-DNYA 力学过载 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]