摘要
根据国家设计标准及相应参数要求设计了一种全承载式车身骨架结构,重点描述了踏步、侧窗、行李舱、后排乘客台阶、天窗等部分的设计,并利用CATIA软件建立车身骨架的三维模型,运用Workbench对车身骨架模型进行了水平弯曲、极限扭转和紧急制动3种工况的有限元分析。结果表明:设计的全承载式车身骨架满足3种极限工况下客车的运动要求,证明此设计具有可靠性。根据有限元的分析结果,提出了增加两纵梁可以更好地减少应力集中的合理性建议。
Based on the national design standards and corresponding parameters, a full-loading body frame structure is designed. The design of steps, side windows, luggage compartment, rear passenger steps, and skylights are shown based on CATIA software. The model in Workbench is performed for finite element analysis of the body skeleton in three conditions: horizontal bending, ultimate torsion and emergency braking. The results show that the designed full-load body frame satisfies the movement requirements of passenger cars under three extreme conditions, which proves that the design has reliability. The analysis results of finite element proposes a reasonable suggestion to increase the stress concentration of the two longitudinal beams.
作者
王梦
刘彩玉
Wang Meng;Liu Caiyu(Vehicle Engineering Department,YantaiAutomobile Engineering Professional College,Shandong Yantai,265500, China;School of Mechanical Science and Engineering,Northeast Petroleum University, Heilongjiang Daqing, 163318, China)
出处
《机械设计与制造工程》
2019年第5期72-75,共4页
Machine Design and Manufacturing Engineering
关键词
全承载式
骨架结构
极限工况
有限元分析
fully-loading body
frame structure
extreme conditions
analysis
