| 模态参数识别的比较研究 |
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| 引用本文： | 张培强,冯文琴.模态参数识别的比较研究[J].中国科学技术大学学报,1991,21(3):22-29. |
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| 作者姓名： | 张培强 冯文琴 |
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| 作者单位： | 中国科技大学
(张培强)，武汉水运工程学院
(冯文琴)，美国威斯康辛大学(T.C.Huang) |
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| 摘 要： | 用计算机仿真试验来模拟系统在大阻尼、密集模态以及重根等各种不同情况下的响应历程,并对500个例子进行了时间域模拟识别计算,给出了其中96例子的识别结果。由结果可见:使用多输入且处理同时得到的所有数据比仅用单输入的识别技术有更强的识别能力和更高的精度。
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| 关 键 词： | 实验模态分析 参数识别 时间域 |
A Comparative Study of Identification of Modal Parameters |
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| Zhang Peiqiang.A Comparative Study of Identification of Modal Parameters[J].Journal of University of Science and Technology of China,1991,21(3):22-29. |
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| Authors: | Zhang Peiqiang |
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| Institution: | Zhang Peiqiang (Univ. of Science and Technology of China) Feng Wenqin (Wuhan Institute of Water Transpotation and Engineering) T.C. Huang (Univ. of Wisconsin-Madison of USA) |
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| Abstract: | Various cases of computer-simulated time domain response are constructed to simulate the real experimental response with high damping, close modes or repeated roots. The multiexcitation time domain method (METDM) is performed on all these computer-simulated responses. Around 500 simulated computations are done; 96 of them are chosen to show the significant power of the METDM in identification of modal parameters with high damping, close modes or repeated roots. It is clear that the technique of exciting multiply and processing all data simultaneously is much more powerful than the single excitation technique. |
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| Keywords: | experimental modal anlysis parameters identification time domain |
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