| 基于振动试验数据的有限元模型修正技术研究 |
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| 引用本文： | 王泽宇,刘 闯,冯咬齐.基于振动试验数据的有限元模型修正技术研究[J].航天器环境工程,2010,27(4):472-476. |
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| 作者姓名： | 王泽宇 刘 闯 冯咬齐 |
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| 作者单位： | 1.北京卫星环境工程研究所，北京 100094 |
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| 基金项目： | 国防科技预先研究项目 |
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| 摘 要： | 文章针对航天器结构的有限元模型修正问题，提出利用振动试验数据对模型进行修正的方法。详细阐述了基于基础激励传递特性的模型修正方法的理论公式，对此方法的程序实现思路及修正程序与有限元分析软件NASTRAN的接口方式进行了详细的介绍。最后利用复杂桁架模型进行了仿真分析，初步验证了该方法的可行性。
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| 关 键 词： | 模型修正 振动试验 基础激励 NASTRAN |
| 收稿时间： | 2010/1/19 0:00:00 |
A method to update FEA analytical model by using the shaker vibration test data |
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| Wang Zeyu,Liu Chuang and Feng Yaoqi.A method to update FEA analytical model by using the shaker vibration test data[J].Spacecraft Environment Engineering,2010,27(4):472-476. |
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| Authors: | Wang Zeyu Liu Chuang and Feng Yaoqi |
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| Institution: | 1.Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China |
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| Abstract: | This paper presents a new model updating method to update aerospace structures by using measured response function data under the base excitation directly. The updating equation is derived and a structural updating software system is developed based on the commercial FEA software NASTRAN. Through simulated numerical case studies based on two models, it is shown that the proposed method is feasible and effective, and the method can be used in virtual tests. |
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| Keywords: | NASTRAN |
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