【完整版】毕业设计论文基于ANSYS的轴承座的模态分析

河南科技学院

2013届本科毕业论文（设计）

论文题目：基于ANSYS的轴承座的模态分析

学生姓名：刘x

所在院系：机电学院

所学专业：机械设计及其自动化

导师姓名：

完成时间：2013年5月8日

摘要

轴承座在机械生产中很常见，在各类机器、机构中都有它存在的身影，由于轴承座本身结构并不是太复杂，所以本文并没有借助其他类型的三维软件建模，而是在ANSYS环境下建立的模型。轴承座的受力主要是分布在轴承孔圆周上，还有轴承孔的下半部分的径向压力载荷。为了提高结构的抗振性，本文借助于ANSYS软件强大的模态分析功能，运用ANSYS软件建立了轴承座的三维模型，并对轴承座进行模态分析，并给出前20阶的固有频率和振型，以此来指导结构的优化设计[1]。

关键字：轴承座，模态分析，有限元，ANSYS

Abstract

Bearing seat is common in the machinery manufacturing, it exists in all kinds of machine, figure, because the bearing seat structure itself is not too complicated, so this article does not use other types of 3 d software modeling, but established under ANSYS environment model. Stress is mainly distributed in the bearing hole of the bearing on the circumference of a circle, and the bearing hole of the bottom half of the radial pressure load. In order to improve the vibration resistance of structure, in this paper, with the aid of powerful modal analysis function of ANSYS software, and the 3 d model of the bearing was established by applying the ANSYS software, and the modal analysis was carried out on the bearing seat, and give the top 20 order natural frequency and vibration mode, in order to guide the optimization design of structure.

Keywords: bearing seat，modal analysis，finite element ，ANSYS