某汽车车架第三横梁静力有限元分析-毕业论文（设计）.docVIP

某汽车车架第三横梁静力有限元分析 专 业:材料成型及控制工程 摘要 汽车制造业在一个国家的工业中扮演着重要的角色，更是国家工业化程度的重要标志，汽车制造业的发展影响着中国的经济。就像人的身体由骨架来支持一样，汽车也必须有一幅骨架，这就是车架。由此可见，对于汽车来说汽车车架的重要性不言而喻。本文中将选择某汽车车架的第三横梁进行结构有限元分析。 随着计算机在软、硬件上的快速发展，有限元分析无论是在理论，还是在计算技术方面都已取得巨大的进步，由于有限元法具有高度通用性和实用性 ,从而导致各类有限元通用软件的飞速发展. 目前 ,将有限元理论、计算机图形学以及优化技术相结合而开发的各类专用有限元软件 ,能高速高效地解决各类有限元问题。 本文研究的主要内容是:以有限元理论为基础，通过对三维造型软件UG和有限元分析软件HyperMesh的学习,并将两者结合起来加以应用。首先将UG造型好的横梁模型导入HyperMesh,通过HyperMesh的强大建模功能对汽车横梁进行有限元建模，然后对横梁有限元模型施加载荷并求解，最后进入通用后处理读取分析结果。得到应力云图和位移云图，对汽车横梁进行分析，找到应力最大和位移最大位置，并读取其大小，为汽车横梁性能的优化提供理论依据。 关键词：有限元，横梁，HyperMesh Finite element analysis of the vehicle beam Abstract Automotive industry participates in an important role in the industry area of country, it also appears a significant symbol to measure the percentage of industrialization of the country. As the same as other countries, the economics of China will also influenced by the development of automotive industry. It is seems like human body need bond to support, automobile also need “carbond”, named car-frame. Thus it can be see that car-frame cannot divide there lationship with car. Therefore in the article, it will choose the third frame of one car-frame to analyse of limited structure. On the rapid development of the computer software and hardware, Finite element analysis whether in theory or in the calculation of technology have made tremendous progress. As the finite element method have highly generality and practicality, Which leading to the rapid development of various FEA common software. At present, various types of software for finite element which developed by combined with finite element theory,computer graphics and optimization technology，Can efficiently solve all kinds of finite element problem. This article introduces the modeling of the clutch by CAD software，And imported into Hypermesh. use the powerful preprocessing and postprocessing and Optistruct solver of the Hypermesh to FEA modeling, calculating, stress analysis and modal analysis of the clutch