摘要
某款电动客车因集中于车架中部的电池较重,导致车架中部结构应力较大,存在较大缺陷。通过添加斜梁把中部结构从超静定梁结构转化为三角桁架结构,改善中部结构的应力状态;同时取消冗余管梁设计,达到结构轻量化的目的。
The stress is rather high of an electric bus mid-structure, due to the heavy battery centralized on its mid- dle chassis-frame. There is considerable defect for the frame. By adding oblique beams to the dangerous region to change the dominant bending stress into the axial pull-press stress, the maximum stress is below the yield stress. Besides, the redundant members is removed to get a lightweight structure.
出处
《客车技术与研究》
2012年第3期14-16,27,共4页
Bus & Coach Technology and Research
关键词
有限元分析
结构优化
轻量化
客车车架
finite element analysis
structural optimization
light-weight
bus / coach frame
