大型龙门铣床主轴滑枕有限元分析.doc

编号： 毕业设计说明书 题 目：大型龙门铣床主轴滑枕有 限元分析 院 （系）： 机电工程学院 专 业：机械设计制造及其自动化 学生姓名： 学 号： 指导教师： 职 称： 副教授 题目类型： (理论研究 (实验研究 (工程设计 (工程技术研究 (软件开发 2009年 6月1日 摘 要 随着计算机的普及和计算速度的提高，有限元分析已越来越广泛地应用到工程分析计算问题，其分析手段已成为现代机械设备CAE分析的主流方法，也是解决我国机械产品设计分析水平落后的关键手段之一。主轴滑枕是中一种必不可少的通用零部件，亦是。 Abstract With the development of computers and the speed of calculation, finite element analysis has become increasingly widely in the calculation of engineering analysis, of which analysis methods has become the mainstream of CAE analysis methods, and the analytical tools has become one of the key method to solve the problem of the level of product design behind about our country mechanical analysis. Spindle ram is the necessary and general components of machine tools, which is also the weak link with frequent failures. The main purpose of this paper is to analysis the spindle - ram which is the key components for machine tool. Ansys command is used to create high-speed flow axis CNC machine tool ram model entities, and do the finite element analysis under the conditions of the sliding bearing support and the high-speed rotary dynamic behavior.Their kinetic analysis, a system for solving modal frequencies, modal vibration mode, the transient dynamic response and the cycle of harmonic excitation response spectrum. In based of the analysis to make sure the weak links in the system,and find out the large gantry milling machine spindle ram deformation of the structure for giving the conclusions of the qualitative analysis, which carry out the work of CAE analysis of the structure of mechanical systems and lay a good foundation for the structural optimization ram designed to provide the theoretical basis and guidance. Keywords: CAE；Spindle ram；Finite element analysis；Deformation analysis；Improvement measures 1 绪论................ 1 1.1 有限元分析的发展现状 1 1.2 有限元分析的发展趋势 2 2 有限元分析理论及ANSYS软件的介绍………