基于某款城市公交车车架结构的设计与有限元分析  

Design and Finite Element Analysis of Frame Structure of a Large City Bus

作　　者：沈辉[1] 景陶敬 张振越 孙健[2] 孔维成 

机构地区：[1]扬州大学机械工程学院,江苏扬州225127 [2]扬州工业职业技术学院,江苏扬州225000

出　　处：《徐州工程学院学报（自然科学版）》2017年第4期60-66,共7页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家自然科学基金项目(11464031);江苏省产学研前瞻性联合创新项目(BY2012161)

摘　　要：车架是汽车非常重要的基础型部件,承受汽车传递的各类载荷.文章的研究对象是一款非承载式车身、前后两轴、发动机后置后驱的某大型城市公交车车架,利用CATIA建立三维模型,再以有限元法作为技术手段,对车架及其相关载荷进行适当简化,以HyperMesh为平台建立车架的有限元模型,对汽车在满载弯曲、极限扭转、紧急制动以及紧急转弯等4种典型工况条件下进行静态力学分析,仿真结果表明车架强度和刚度均满足要求.通过有限元分析降低了汽车车架的设计与制造成本,缩短了开发周期.Frame is a very important basic component and withstands the loads of automobile.Taking the frame of a large city bus,which has non-load body with front and rear axles and rear-engine driven,as the research object,and the finite element method as the technical means,the three-dimensional model is established on the platform of HyperMesh by CATIA to simplify the frame and its relative load.The static mechanical analysis is carried out under four typical working conditions of full load bending,limit torsion,emergency braking and turning.The simulation results show that the frame strength and stiffness meet the requirements.It can reduce the design and manufacturing costs of the frame through the study of the finite element analysis,making the design of the relevant bus models occupy a favorable position in the market.

关 键 词：公交车车架 有限元法 HYPERMESH 静态分析 

分 类 号：U469.13[机械工程—车辆工程]