| 模态参数识别中的激振点和测量点的布局 Ⅰ理论分析 |
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| 引用本文： | 刘中生,于民,王大钧,陈德成.模态参数识别中的激振点和测量点的布局 Ⅰ理论分析[J].宇航学报,1995(2). |
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| 作者姓名： | 刘中生 于民 王大钧 陈德成 |
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| 作者单位： | 北京大学力学系 |
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| 基金项目： | 国家自然科学基金,高校博士学科点专项科研基金 |
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| 摘 要： | 测量点和激振点在被识别结构上的布局对于目标模态的准确识别具有很大影响。本文针对目标模态分别是孤立模态和重频模态，讨论了激振点和测量点的布局准则，给出了模态可识别的必要条件和充分条件。
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| 关 键 词： | 模态参数识别，测量点布局，激振点布局，重频模态 |
PLACEMENT OF EXCITERS AND SENSORS FOR IDENTIFICATION OF MODEL PARAMETERS THEORETICAL ANALYSIS |
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| Liu Zhongsheng, Yu Min,Wang Daijun, Chen Decheng.PLACEMENT OF EXCITERS AND SENSORS FOR IDENTIFICATION OF MODEL PARAMETERS THEORETICAL ANALYSIS[J].Journal of Astronautics,1995(2). |
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| Authors: | Liu Zhongsheng Yu Min Wang Daijun Chen Decheng |
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| Abstract: | The placement of exciters and sensors in the structure to be identified is of major consideration in the process of the vibration test because it has a considerable effect on the results of identification. In this paper the criterion for placement of exciters and sensors is presented with respect to distinct or repeated modes in frequency respectively. The necessary and sufficient condition under which the vibration modes can be identified is also provided. |
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| Keywords: | Modal parameter identification Placement of exciters Placement of sensors Repeated modes in frequency |
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