| 几种阻尼模型的建模方法及评价 |
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| 引用本文： | 庄新伟,淡丹辉,姚伯威. 几种阻尼模型的建模方法及评价[J]. 中国测试技术, 2006, 32(2): 62-65 |
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| 作者姓名： | 庄新伟 淡丹辉 姚伯威 |
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| 作者单位： | 1. 电子科技大学机械电子工程学院,四川,成都,610054
2. 同济大学土木工程防灾国家重点实验室,上海,200092 |
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| 摘 要： | 利用一种统一的阻尼模型的定量评价方法和评价指标,设计了一套适用于评价各种阻尼模型的标准测试案例。分析了工程结构动力学建模过程中几种阻尼模型。通过标准测试案例的数值测试,比较了这些阻尼建模法的性能差异。结果表明,不同的阻尼建模方法对结构动力学有限元模型的精度有显著影响,应该对此影响加以考虑;单元阻尼法,对实际的工程结构来说更有意义。
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| 关 键 词： | 阻尼模型 阻尼特性 单元阻尼比 整体阻尼比 |
| 文章编号： | 1672-4984（2006）02-0062-04 |
| 收稿时间： | 2005-06-21 |
| 修稿时间： | 2005-09-05 |
Modeling methods and appraising of damp models |
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| ZHUANG Xin-wei,DAN Dan-hui,YAO Bo-wei. Modeling methods and appraising of damp models[J]. China Measurement Technology, 2006, 32(2): 62-65 |
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| Authors: | ZHUANG Xin-wei DAN Dan-hui YAO Bo-wei |
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| Affiliation: | 1. College of Mechatranics Engineering, University of Electronic Science and Technology, Chengdu 610054, China; 2.National Key Laboratory for Anti-Natural Calamities to Civil Works, Tongji University, Shanghai 200092,China |
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| Abstract: | A uniform evaluation methods and evaluation index for some damp models are quoted by this paper,A standard test case is designed for the evaluation.Several damp modeling methods used in the process of engineering structure dynamical analysis are compared.A standard problem is designed to give all the models an impartial test.Numerical tests on the standard test case,it shows that different damp methods have conspicuous effects on precision of the dynamics finite element model of the structure.This influence should be considered.The elemental damp property is more meaningful for real project structure. |
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| Keywords: | Damp model Damp property Elemental damp ratio Collectivity damp ratio |
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