圆环列系统吸能特性研究  

Research on Energy Absorption Feature of Ring Systems

作　　者：赵凯[1] 沈建虎 刘凯欣[1] 卢国兴 杨嘉陵[3] 

机构地区：[1]北京大学工学院,北京100871 [2]斯威本大学工程与科学学院 [3]北京大学工程研究院,北京100871

出　　处：《北京大学学报（自然科学版）》2007年第3期312-316,共5页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：国家自然科学基金(10572002)资助项目

摘　　要：采用改造的分离式Hopkinson压杆实验装置并配合高速摄影装置,对冲击载荷下不同材料的圆环列系统的动态力学行为进行了实验研究,并应用动力有限元LS-DYNA对该系统进行了相应的数值模拟,讨论了不同圆环列系统的吸能特性以及不同参数的影响。结果表明圆环列结构具有较高的吸能效率,具有重要的应用价值。The modified Split Hopkinson Pressure Bar system equipped with the high-speed camera is utilized to perform the experimental researches on the dynamic behavior of ring systems made of different materials subjected to impact loading. Correspondingly, comprehensive numerical simulations on the ring systems are conducted by the dynamic finite element software LS-DYNA. The energy absorption features of different ring systems and the influences of different parameters are discussed. The results show that the energy absorption efficiency of the ring systems is relatively high and the system is very valuable for engineering uses.

关 键 词：圆环列系统 SHPB技术 吸能 

分 类 号：O347[理学—固体力学]