| 一种粘滞阻尼体系阻尼矩阵识别新方法 |
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| 引用本文： | 刘福顺,王卫英. 一种粘滞阻尼体系阻尼矩阵识别新方法[J]. 工程力学, 2011, 0(5): 233-238,244 |
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| 作者姓名： | 刘福顺 王卫英 |
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| 作者单位： | 中国海洋大学工程学院;青岛理工大学工程质量检测鉴定中心; |
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| 基金项目： | 山东省自然科学基金项目(ZR2009FQ007); 国家自然科学基金项目(51009124); 青岛市科技发展计划项目(09-1-3-18-jch) |
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| 摘 要： | 阻尼是结构动力学分析的重要参数,对阻尼矩阵的估计一直是动力学建模的难点.该文提出一种适用于粘滞阻尼体系的阻尼矩阵识别方法.该方法的一个优点是能够考虑阻尼矩阵中非零元素的不同分布形态;另一个优点则是应用有限的低阶实测模态可相对准确的估算结构的阻尼矩阵,从而更好的适应目前只有有限的低阶模态能够相对准确测得的现状.该文采用5...
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| 关 键 词： | 粘滞阻尼 阻尼矩阵 阻尼识别 阻尼比 低阶实测模态 复振型 |
A DAMPING MATRIX IDENTIFICATION METHOD FOR VICIOUS DAMPING STRUCTURES |
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| LIU Fu-shun,WANG Wei-ying. A DAMPING MATRIX IDENTIFICATION METHOD FOR VICIOUS DAMPING STRUCTURES[J]. Engineering Mechanics, 2011, 0(5): 233-238,244 |
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| Authors: | LIU Fu-shun WANG Wei-ying |
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| Affiliation: | LIU Fu-shun1,WANG Wei-ying2(1.College of Engineering,Ocean University of China,Qingdao,Shandong 266100,China,2.Center for Engineering Test and Appraisal,Qingdao Technological University,Shandong 266033,China) |
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| Abstract: | Though damping matrix estimation is a choke point for dynamic modeling,it is an important parameter for structural dynamic analysis.In this paper,a damping matrix identification method for vicious damping structures is proposed.An advantage of this method is that different manners of nonzero values in damping matrix can be considered,and the other is that real damping matrix can be estimated reasonably utilizing the first limited lower order frequencies and corresponding complex mode shapes,which can adapt ... |
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| Keywords: | vicious damping damping matrix damping identification damping ratio lower order measured modes complex mode shape |
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