地雷爆炸载荷下防爆复合结构的动态响应研究  

Study on Dynamic Response of Anti-explosion Composite Structures under Landmine Explosion Load

作　　者：吴迪 刘涛[2] 石秉良[2] 焦丽娟[1] 陶治国[1] WU Di;LIU Tao;SHI Bingliang;JIAO Lijuan;TAO Zhiguo(China North Vehicle Research Institute,Beijing 100072,China;63936 PLA Troops,Beijing 102202,China)

机构地区：[1]中国北方车辆研究所,北京100072 [2]中国人民解放军63936部队,北京102202

出　　处：《车辆与动力技术》2023年第1期1-5,共5页Vehicle & Power Technology

摘　　要：在现代城市巷战及未来战争中,地雷和简易爆炸装置(IEDs)将对装甲车辆构成严重威胁.传统的车辆底部防爆结构设计需要进行大量试验,成本高昂且准备周期长,因此防爆结构抗地雷仿真计算成为目前研究的重点.本文建立了三种防爆复合结构的有限元模型,通过LS-DYNA软件的ALE方法模拟地雷爆炸载荷作用下不同结构参数设置的防爆复合结构的动态响应,获得后效板中心点变形的位移-时间曲线.开展了防爆复合结构台架试验,测量后效板中心点的变形量并与有限元仿真结果进行对比,结果表明,后效板中心点最大塑性变形的仿真结果与试验结果误差均小于20%,可以通过有限元仿真进一步预测地雷爆炸载荷作用下后效板的塑性变形,提高防爆结构设计的工作效率.In modern urban street warfare and future warfare,landmines and improvised explosive devices(IEDs)pose a serious threat to armored vehicles.The design of traditional anti-explosion structure at the bottom of the vehicle requires a large number of tests,high cost and long preparation period,so the simulation calculation of anti-explosion structure anti-mine has become the focus of current research.In this paper,three finite element models of anti-explosion composite structures were established,and the dynamic response of anti-explosion composite structures set by different structural parameters under the action of mine explosion load was simulated by the ALE method in LS-DYNA,and the displacement time curves of the center point deformation of the after-effect plates were obtained.The bench tests of anti-explosion composite structures were carried out,and the deformation of the center points of the after-effect plates were measured which were compared with the finite element simulation results.The comparison results show that the maximum plastic deformation error of the center points of the after-effect plates between the finite element simulation results and the test results was less than 20%.The plastic deformation of the after-effect plate under the mine explosion load can be further predicted by finite element simulation,so as to improve the efficiency of anti-explosion structure design.

关 键 词：地雷爆炸载荷 防爆复合结构 装甲后效板 蜂窝芯层 有限元仿真 防爆试验 

分 类 号：O383[理学—流体力学]