结构形状、材料对新型复合隔爆结构抗爆能力的影响研究  

Influence of Structural Shape and Material on Anti-explosion Ability of New Composite Explosive-proof Structure

作　　者：朱福林 陈阳 ZHU Fu-lin;CHEN Yang(Sichuan Aerospace Electronic Equipment Research Institute,Chengdu 610100,China)

机构地区：[1]四川航天电子设备研究所

出　　处：《爆破》2019年第3期112-115,140,共5页Blasting

摘　　要：为研究结构形状、材料对新型复合隔爆结构抗爆能力的影响,在试验的基础上,采用ANSYS/LS-DYNA有限元软件对不同结构形状的隔爆罩进行了数值仿真,得到了隔爆罩的压力分布图及罩顶压力-时间曲线,结果表明,数值仿真与试验结果吻合,验证了仿真结果的正确性。利用已验证的仿真模型,数值模拟了酚醛树脂和泡沫铝两种隔爆板材料的抗爆能力。结果表明:隔爆罩形状和隔爆板材料对复合隔爆结构的抗爆能力有重大影响,在隔爆板相同的情况下,圆锥形隔爆罩比球缺形隔爆罩具有更好的抗爆能力;在隔爆罩形状、隔爆板厚度相同的情况下,聚氨酯泡沫隔爆板的抗爆吸能作用最大,酚醛树脂次之,泡沫铝最小。In order to study the influence of structural shape and material on the anti-explosion ability of the new composite explosive-proof structure,the ANSYS/LS-DYNA finite element software was used to simulate the explosive-proof hoods of different structures on the basis of test results.The pressure distribution map of explosive-proof cover and the pressure-time curve of the top cover were obtained,and the results showed that the numerical simulation agreed with the experimental results and verified the correctness of simulation results.Using the validated simulation model,the anti-explosion ability of phenolic resin and foamed aluminum flame retardant materials was numerically simulated.The results showed that the shape of the explosive-proof cover and the material of the explosive-proof board had a great influence on the anti-explosion ability of the composite explosive-proof structure.Under the same condition of the explosive-proof board,the cone-shaped explosive-proof cover had better performance than the ball-shaped cover.In the case of the same shape and thickness of the explosive-proof plate,the polyurethane foam explosive-proof plate had the largest anti-explosive energy absorption effect,the phenolic resin was the second,and the foam aluminum was the smallest.

关 键 词：复合隔爆结构 隔爆罩 隔爆板 形状 材料 抗爆 

分 类 号：TJ410.33[兵器科学与技术—火炮、自动武器与弹药工程]