爆炸冲击下座椅吸能元件设计及优化研究  

Design and Optimization of Energy-Absorbing Structure of Seat under Blast Shock Environment

作　　者：陈婷 周云波[1] 王显会[1] 李昊[1] CHEN Ting;ZHOU Yun-bo;WANG Xian-hui;LI Hao(College of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing Jiangsu 210094,China)

机构地区：[1]南京理工大学机械工程学院

出　　处：《计算机仿真》2019年第7期1-5,共5页Computer Simulation

基　　金：国家自然科学基金资助项目(5140232)

摘　　要：针对爆炸环境下座椅对乘员的防护要求,建立整车爆炸环境,利用仿真计算与试验所得乘员响应对比进行有限元模型验证。通过翻卷管的结构尺寸、启动载荷的设计及动态吸能仿真完成了吸能元件的设计。利用AEP-55乘员伤害准则,对乘员约束系统中翻卷管外径、翻卷半径与翻卷管壁厚运用试验设计、代理模型建立进行多目标优化。结果表明.翻卷管吸能元件工作过程中具有较高稳定性,能够有效提升乘员约束系统的防护性能。多目标优化获得了乘员约束系统防护性能的提升。Aiming at the protection requirements of seat to occupants under mine blast environment, the whole ve hicle finite model along with blast environment was established. The model was validated by comparing the occupant responses obtained from the simulation with the test. The design of the energy-absorbing structure includes the design of the sizes and starting load of the inversion tube and the simulation of dynamic energy absorbing process. Referring to AEP55 Crew Injury Criteria, multi-objective optimization was conducted on experimental design and proxy model for the outside diameter, the roll radius and the wall thickness of the inversion tube. The results show that the inver sion tube has high stability in the energy absorbing process and can effectively improve the protection ability of the oc cupant restraint system. After multi-objective optimization, the protection ability was improved.

关 键 词：防护座椅 吸能元件 翻卷管 多目标优化 

分 类 号：TJ01[兵器科学与技术—兵器发射理论与技术]