注：国家自然科学基金资助（项目编号：10876034）

作者：高旭 曾国英 李婷婷

单位：西南科技大学制造科学与工程学院  四川绵阳   621010

中图分类号：TB115   

文献标识码：A       

文章编号：1006-883X(2009)06-0033-03

摘要：运用工程分析软件ANSYS分析了螺纹连接法兰结构的模态。本文通过建立有限元模型对其进行模态分析得到固有频率、振型，对比分析不同固有频率对结构的影响，为螺纹连接法兰结构的有限元模型简化以及进一步的动力学分析、非线性接触分析提供了理论依据。

关键词：ANSYS；螺栓连接；有限元；模态分析

Modal analysis of flange structure connected with screw bolts based on ANSYS

GAO Xu, ZENG Guo-ying, LI Ting-ting

( Southwest University of Science and Technology, Mianyang  621010, China)

Abstract: The model of flange structure connected with screw bolts is analyzed by using engineering analysis software ANSYS. Firstly, the model of flange structure connected with screw bolts is made, and then the free frequency and the shape are calculated through ANSYS software, the difference of shapes is compared under difference frequencies, the impact of flange structure exact location for frequency is acquired. This analysis makes theory for model simplification, Depth Kinetic analysis and nonlinear contact analysis.

Keywords: ANSYS; threaded connection; finite element; modal analysis

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备注：2009年  第15卷  第6期