不同外框搭配不同内支撑的薄壁梁碰撞研究  

Study on Collision of Thin-walled Beams with Different Outer Frames and Different Inner Supports

作　　者：袁威 吴胜军[1] 孟航宇 梁治千 张宗宏 Yuan Wei;Wu Shengjun;Meng Hangyu;Liang Zhiqian;Zhang Zonghong(Hubei Key Laboratory of Automotive Power Train and Electronic Control,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院汽车动力传动与电子控制湖北省重点实验室,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2021年第2期7-10,共4页Journal of Hubei University Of Automotive Technology

基　　金：湖北省自然科学基金(2014CFB630);汽车零部件技术湖北省协同创新项目(2015XTZX0421);汽车动力传动与电子控制湖北省重点实验室开放基金(ZDK1202004)。

摘　　要：为了提高客车碰撞的安全性,基于HyperMesh与LS-DYNA比较了正方形、五边形、六边形搭配X型、XO型内支撑的不同截面形状薄壁梁的碰撞性能,分析结果表明:XO型与X型内支撑搭配六边形外框的2种截面形状薄壁件碰撞性能最优;将优化结果结合整车模型进行碰撞分析验证,计算结果表明:2种形状薄壁梁碰撞总吸能差别不大,X型内支撑搭配六边形外框截面形状方案的整车加速度最低,效果更好。In order to improve the safety of bus collision,based on HyperMesh and LS-DYNA,the colli⁃sion performance of thin-walled beams with different cross-section shapes such as square,pentagon,hexagon with X-type,XO-type inner support were compared.The analysis results show that XO-type and X-type inner support with hexagon outer frame have the best collision performance.The optimiza⁃tion results were combined with the vehicle model for collision analysis.The results show that there is little difference in the total energy absorption between the two kinds of thin-walled beams,while the Xtype inner support with hexagon outer frame section has the lowest acceleration and better effect.

关 键 词：薄壁梁 截面形状 整车碰撞 

分 类 号：U463.831[机械工程—车辆工程]