文档介绍：? 1994-2010 China Academic Journal Electronic Publishing House. All rights reserved. 骨架有限元建模技术及结果分析Ξ RESEARCHONFINITEELEMENTMODELINGTECHNIQUEAND RESULTANALYSISMETHODSFORBUSBODYFRAME 王海霞ΞΞ汤文成钟秉林易红(东南大学机械系,南京 210096 ) WANGHaixia TANGWencheng ZHONGBinglin YIHong (MechanicalDepartment, SoutheastUniversity, Nanjing210096, China ) 摘要对于客车身骨架类的框架结构,用梁单元建模不仅具有建模简单、计算量小的优点,而且通过一些建模技术, 精度能很好地满足工程要求。以某集团的 CJ6121GCHK型客车车身骨架为例来阐述框架结构的梁单元建模技术及结果分析技术,通过一些模型简化措施,建立并简化了梁单元模型;采用短梁单元对其连接区域进行模拟,提高了框架结构梁单元的建模精度;通过不同典型工况下结构的强度、刚度性能较核,进行了结果分析,提出了对该客车车身骨架进行结构粗略修改的依据。关键词客车车身骨架分析有限元建模技术强度刚度模态分析结构设计中图分类号 TG404 TH114 TB115 Abstract ForframestructuressuchasBusBodyInWhite (BIW ),finiteelementmodelingwithbeamelementnotonlyhasthe putationwork,uracyrequirementbysomemodeling ’ beamelementmodelingtechniquesandresult ;modeling accuracyisimprovedbysimulatingjointareaswithshortbeams;structurestrengthandrigidityarecheckedinitsseveraltypicalworking loadsandmodalresultsareanalyzed,thensomeprinciplesareputforwardcontributingtothepreliminarydesignmodificationofthe currentbodystructure. Keywords Analysisofbusbodyinwhite;Finiteelementmodelingtechnique;Strength;Rigidity;Modalanalysis; Structuredesign Correspondent: WANGHaixia, E2 mail: wang hx@ seu. ed