基于优化方法的有限元模型修正方法  

Finite Element Model Updating Method Based on Optimization

作　　者：杨序贵[1] 刘守圭[1] 

机构地区：[1]中山大学应用力学与工程系,广东广州510275

出　　处：《中山大学学报（自然科学版）》2005年第B06期161-162,共2页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：信息产业部电子五所电子元器件可靠性物理及其应用技术国家级重点实验室资助项目

摘　　要：在进行结构动力分析时,依据理论建立的有限元模型与结构的实际情况不可避免地存在着差异,必须用试验得到的结果对有限元模型进行修正。利用ANSYS有限元软件的优化功能对一悬臂梁进行模型修正,修正后的有限元模型具有很高的精度。该方法修正过程简单,且修正效果好,为有限元模型修正方法提供了例证。When analyzing a dynamic structural model, they should recognize that there is inevitably a difference the model and the real structure. To make the model accurate, it is necessary to update the model with the results of the test. In this article, optimization function of ANSYS is used to update a cantilever beam. After the optimization, they can obtain precise finite element model. Results show that this approach is feasible and possesses a greater accuracy, and the process of this updating metiod is very simple for application.

关 键 词：有限元 模型修正 优化 ANSYS 

分 类 号：O326[理学—一般力学与力学基础]