| 由自由振动响应识别非线性系统参数的一种方法 |
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| 引用本文： | 唐驾时,霍拳忠.由自由振动响应识别非线性系统参数的一种方法[J].振动工程学报,1989(4). |
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| 作者姓名： | 唐驾时 霍拳忠 |
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| 作者单位： | 湖南大学，天津大学 |
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| 摘 要： | 本文提出了一种由自由振动响应识别非线性系统参数的方法,即首先用直接摄动法求出系统自由振动的近似解作为数学模型,然后用最小二乘法来识别系统的物理参数.此方法具有精度高、应用方便的特点.
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| 关 键 词： | 非线性系统 摄动解 最小二乘法 参数识别 |
A Method of Identification of Nonlinear System Parameters from Free Response |
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| Tang Jiashi Hunan UniversityHuo Quanzhong Tianjing University.A Method of Identification of Nonlinear System Parameters from Free Response[J].Journal of Vibration Engineering,1989(4). |
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| Authors: | Tang Jiashi Hunan UniversityHuo Quanzhong Tianjing University |
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| Affiliation: | Tang Jiashi Hunan UniversityHuo Quanzhong Tianjing University |
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| Abstract: | A method of identification of nonlinear system parameters from free response is presented. Regarding the approximate solution of free vibration obtained by the normal perturbation method as the model of parameter identification, we identify physical parameters of the nonlinear system using least square method. This method is high in precision and convenient in use. |
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| Keywords: | nonlinear system perturbation solution least square method parameter identification |
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