| 有限元模型修正中处理不完备实测模态参数的方法研究 |
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| 引用本文： | 张淼,徐慕奇,许鑫鑫,陈钱钱.有限元模型修正中处理不完备实测模态参数的方法研究[J].长春工程学院学报(自然科学版),2014(4):120-125. |
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| 作者姓名： | 张淼 徐慕奇 许鑫鑫 陈钱钱 |
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| 作者单位： | 1. 长春工程学院理学院
2. 长春工程学院国际教育学院,长春,130012 |
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| 基金项目： | 吉林省教育厅“十二五”科学技术研究项目 |
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| 摘 要： | 首先介绍了实、复模态参数的基本理论。其次介绍了有关实测模态参数的识别及估计方法。然后阐述了2种广泛应用于处理不完备实测模态参数的重要技术——模型缩聚技术和扩展技术,并揭示了它们之间的内在联系。最后介绍了2种应用不广泛但具有一定理论价值的用于处理不完备实测模态参数的方法。
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| 关 键 词： | 模型修正 解析振型 实测振型 模型缩聚 模态扩展 |
The study on dealing with incomplete experimental modal parameters during the finite element model updating |
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| Institution: | ZHANG Miao,et al. (School of Science, Changchun Institute of Technology, Changchun 130012, China) |
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| Abstract: | T his paper first introduces the basic theoretical contents of real and complex mode parameters. Secondly, it introduces the recognizing and evaluating methods related to experimental modal parameters. Then, it indicates two kinds of important technology widely applied to deal with incomplete experimental modal parameters, that is model reduction technology and expansion technology, and reveals the interrela‐tionship between them .Finally, it introduces a method which is not applied widely but with a certain theo‐retical value in dealing with incomplete experimental modal parameters . |
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| Keywords: | model updating analytical mode experimental mode model reduction modal expansion |
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