基于 Nas t ran 得某客车有限元分析耿广锐 严锦伟 赵幼平 郭友利(东风商用车技术中心 湖北武汉 4 3 00 5 6 )摘要:应用Nastran软件对某客车得三种结构形式:车架、车架+车身骨架、车架+车身骨架+蒙皮进行纯弯、弯扭组合、加速、紧急制动、急转弯等工况下得强度分析以及自由模态与刚度得计算
比较不同结构形式对分析结果得影响程度,从而为以后按不同得分析目得来建立最简单得分析模型积累经验
最后通过对结构得改进成功得降低车身地板高应力部位得应力水平并对车身成功减重
关键词:客车;强度;刚度;自由模态Finite element analysis for city bus based on NastranGeng Guang-rui Yan Jin-wei Zhao You-ping Guo You-li(D FL m e rci a l Veh i cle Techn i cal Center ,Wuhan 430 0 56,Ch i na)Abstr a ct:Ap plyi ng N as tra n softw a re on three f o rm s o f the bu s: fr a me, f rame+bod y fr am e w o rk, fra m e+ body framework+bo d y s ki n t o a n al ys e s th e s t r e ngth in the co nd ition: bend i ng, the binat i o n of be n d i ng and t o r sion, accelerat i on, Emergency Bra k ing C ondition, E mergency S t eerin g, etc, an d the analyses of fre