| 小波-傅立叶变换综合法的车桥耦合振动分析 |
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| 引用本文： | 殷翔,董正筑,王继燕. 小波-傅立叶变换综合法的车桥耦合振动分析[J]. 太原理工大学学报, 2005, 36(6): 697-700 |
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| 作者姓名： | 殷翔 董正筑 王继燕 |
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| 作者单位： | 中国矿业大学,理学院力学系,江苏,徐州,221008 |
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| 摘 要： | 将小波变换与傅立叶变换相结合,提出一种处理非平稳信号的新方法小波-傅立叶变换综合法。并用于分析不同车速下桥梁跨中挠度的动力响应曲线,得到完整的时频信息。分析结果表明了该小波-傅立叶变换综合法在非平稳信号时频分析领域有良好的应用效果。
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| 关 键 词： | 小波变换 傅立叶变换 非平稳信号 时频分析 耦合振动 |
| 文章编号： | 1007-9432（2005）06-0697-04 |
| 收稿时间： | 2005-07-15 |
| 修稿时间： | 2005-07-15 |
A Synthetic Method of Wavelet Transform and Fourier Transform for Coupled Vibration between Bridge and Vehicles |
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| YIN Xiang,DONG Zheng-zhu,WANG Ji-yan. A Synthetic Method of Wavelet Transform and Fourier Transform for Coupled Vibration between Bridge and Vehicles[J]. Journal of Taiyuan University of Technology, 2005, 36(6): 697-700 |
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| Authors: | YIN Xiang DONG Zheng-zhu WANG Ji-yan |
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| Affiliation: | College of Sicence , China University of Mining, Xuzhou 221008,China |
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| Abstract: | In this paper,a new method called synthetic method of wavelet transform and Fourier transform is proposed.This method is used to analyze the dynamic response curve of bridge vibration in different vehicle speeds.Finally,the integrated time-frequency information is obtained.The paper proved the validity of the synthetic method of wavelet transform and Fourier transform in time-frequency analysis of non-stable signal. |
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| Keywords: | wavelet transform fourier transform non-stable signal time-frequency analysis coupled vibration |
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