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| 激励作用下非线性系统的时变特征识别 | |
| 引用本文： | 石志晓,王新建,王子涛. 激励作用下非线性系统的时变特征识别[J]. 河南科学, 2010, 28(10): 1233-1237 |
| 作者姓名： | 石志晓 王新建 王子涛 |
| 作者单位： | 郑州大学土木工程学院,郑州,450002;商丘师范学院建筑与土木工程系,河南,商丘,476000;河南财经政法大学金融学院,郑州,450002 |
| 基金项目： | 国家自然科学基金，河南省教育厅自然科学基金 |
| 摘 要： | 提出采用小波重排谱的方法对外激励作用下的非线性系统进行识别,得到其频率骨架曲线和阻尼骨架曲线.对摩擦滑移隔震系统进行识别,识别结果与理论曲线吻合较好,说明方法适合于激励作用下非线性系统时变参数的识别. |
| 关 键 词： | 非线性系统 小波重排 脊线 骨架曲线 |
Nonlinear System Identification Analysis |
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| Shi Zhixiao,Wang Xinjian,Wang Zitao. Nonlinear System Identification Analysis[J]. Henan Science, 2010, 28(10): 1233-1237 | |
| Authors: | Shi Zhixiao Wang Xinjian Wang Zitao |
| Affiliation: | Shi Zhixiao1,Wang Xinjian2,Wang Zitao3 (1.College of Civil Engineering,Zhengzhou University,Zhengzhou 450002,China,2.School of Architecture and Civil Engineering,Shangqiu Normal University,Shangqiu 476000,Henan China,3.Financial Institute,Henan University of Economics and Law,China) |
| Abstract: | The identification method of nonlinear system under excitation by wavelet reassignment is proposed,and frequency and damping skeleton curves are identified.An example of sliding isolated structure indicated that idetificated results are in accordence with the theoretical results and the method is suitable for the time-varying parameters estimation of nonlinear system under excitation. |
| Keywords: | nonlinear system wavelet reassignment ridge skeleton curve |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |