考虑节点柔度特征的客车骨架有限元分析模型  

Finite Element Model with Node Complinance Feature Considered in Bus Frame Analysis

作　　者：韦志林[1] 沈光烈[1] 黄昶春[1] 

机构地区：[1]广西工学院汽车研究所,广西柳州545006

出　　处：《客车技术与研究》2006年第5期10-12,共3页Bus & Coach Technology and Research

基　　金：广西壮族自治区自然科学基金(桂科自0481024)

摘　　要：为改进传统客车骨架结构有限元分析中梁模型的缺陷,提出一种新的计算模型。这种模型中包括梁单元和用壳单元离散的节点单元,共同构成薄壁杆系计算模型,在一次计算中能提供节点设计所需要的节点细部应力分布特征,同时也提供梁截面设计所需要的截面内力。此外,还讨论如何应用新模型对客车骨架节点部位结构进行合理设计。To improve defect in traditional beam FEA model of bus structure, a new thin-wall FEA model which is meshed with shells and beams is presented in this paper. By the new model, detailed information of the stress distributing at nodes area which is needed for nodes design and internal forces of elements which are needed for beam＇s cross-section design can get by only one time analytical calculation. At the same time, how to get a more reasonable design for structure on bus-frame nodes is discussed based on the new model.

关 键 词：有限元法 客车骨架 节点柔度 分析模型 

分 类 号：U463.831[机械工程—车辆工程]