基于近似模型的城市客车车架轻量化设计研究  

Research on Integrated Lightweight Design of New Energy Bus Frame

作　　者：王正超 赵东伟 尹怀仙[2] WANG Zhengchao;ZHAO Dongwei;YIN Huaixian(Department of Computer,Qingdao Finance and Economics College,Qingdao 266100,China;School of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,China)

机构地区：[1]青岛财经职业学院计算机系,山东青岛266100 [2]青岛大学机电工程学院,山东青岛266071

出　　处：《机械制造与自动化》2020年第5期169-171,187,共4页Machine Building & Automation

基　　金：国家重点研发计划(2015BAG12B01);山东省科技发展计划项目(2014GGX103044)。

摘　　要：传统新能源客车车架的设计过于保守,为减轻车架结构自重,减少制造成本,提出一种基于近似模型的城市客车车架轻量化设计方法。以某城市客车车架为研究对象,构建有限元模型,利用ANSYS有限元软件对车架最危险的扭转工况进行有限元分析。根据车架有限元分析结果,利用Isight软件构建车架的Kriging近似模型,对车架的主要承载梁进行尺寸优化设计。优化结果表明,在保证汽车各方面的性能要求下,优化后的车架总质量减轻了14.2%,强度有所提高。The design of the traditional frame of new energy bus is too conservative.To reduce the weight of the frame structure and the manufacturing cost,a method for lightweight design of the city bus frame based on the approximate model is proposed.This paper takes the passenger car frame made in China as research object,constructs its finite element model,and uses the ANSYS finite element software to carry out the finite element analysis in the conditions of most dangerous torsion of the frame.According to the finite element analysis results of the frame,the Kriging approximation model of the frame is constructed by Isight software,and the main load beam of the frame is optimized.The optimization results show that on the premise of ensuring the performance of the vehicle,the optimized frame mass is reduced by 14.2%and its strength is improved.

关 键 词：车架 有限元 近似模型 轻量化 

分 类 号：U469.72[机械工程—车辆工程] U463.1[交通运输工程—载运工具运用工程]