| 分析模态与实验模态综合技术的若干问题 |
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| 引用本文： | 许庆余,李晶.分析模态与实验模态综合技术的若干问题[J].西安交通大学学报,1988(4). |
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| 作者姓名： | 许庆余 李晶 |
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| 作者单位： | 西安交通大学工程力学系
(许庆余)，西安交通大学工程力学系(李晶) |
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| 摘 要： | 本文提出了将实验模态分析引入模态综合中,由子结构参数识别结果,结合分析模态的计算,求得整体结构的动力特性,处理大型结构的建模方法。文中针对下列一些问题进行了分析研究。(1)转角模态及剩余模态的测试; (2)剩余质量对综合精度的影响。最后,通过平面框架的实验分析和仿真计算,证实本文所提出的方法的可行性与优点。
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| 关 键 词： | 模态 子结构法 模态综合法 |
SOME CONSIDERATIONS OF THE SYNTHETIC TECHNIQUE OF ANALYTICAL AND EXPERIMENTAL MODE |
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| Xu Qingyu,Li Jing.SOME CONSIDERATIONS OF THE SYNTHETIC TECHNIQUE OF ANALYTICAL AND EXPERIMENTAL MODE[J].Journal of Xi'an Jiaotong University,1988(4). |
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| Authors: | Xu Qingyu Li Jing |
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| Institution: | Department of Engineering Mechanics |
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| Abstract: | In this paper, the experimental modal analysis is introduced to componentmodal synthesis (CMS) technique. Using the substructure parameter identi-fication results, the authors obtain the total dynamic character of wholestructure, i. e. the reasonable mechanical model of a complex structure can beestablished. Some important problems are studied in this paper. The first isthe measure of rotational modal shape and residual modal. The second is tostudy the influonoe of residual mass. At last, the calculation and experimentalanalysis of a plano frame is presented to prove the praotioality and reliabilityof the method. |
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| Keywords: | mode substructure method modal synthesis method |
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