| 车辆非平稳响应的瞬时空间频谱分析 |
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| 引用本文： | 张立军,何辉,王岩松.车辆非平稳响应的瞬时空间频谱分析[J].振动与冲击,2003,22(3):16-20. |
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| 作者姓名： | 张立军 何辉 王岩松 |
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| 作者单位： | 辽宁工学院,机械与汽车工程系,锦州,121001 |
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| 摘 要： | 本文提出了解决车辆非平稳随机振动问题的“瞬态空间频响函数”法 ,导出了车辆非匀速行驶时的时 -空频率关系和系统的瞬态空间频响函数 ,在此基础上结合实例分析了车辆非平稳响应的瞬时功率谱 ,并与其他方法进行了比较。该方法也可适用于非线性非平稳车辆随机振动研究 ,对车辆非平稳动态载荷研究有一定参考价值。
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| 关 键 词： | 车辆非平稳随机振动 瞬态空间频响函数 瞬时功率谱 |
| 修稿时间： | 2002年9月12日 |
Analysis on Instantaneous Spatial Spectrum of Vehicle Response |
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| Zhang Lijun,He Hui,Wang Yansong.Analysis on Instantaneous Spatial Spectrum of Vehicle Response[J].Journal of Vibration and Shock,2003,22(3):16-20. |
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| Authors: | Zhang Lijun He Hui Wang Yansong |
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| Abstract: | According to the correlation between time and spatial frequency,a new effective method called instantaneous transfer function with spatial frequency for solving nonstationary random vibration of vehicle is proposed.Based on that the instantaneous power spectral density with spatial frequency is derived.An analysis of an actual example has been carried out.The method is proved to be valid by comparing with other methods.It can also be applied to analyse nonlinear and nonstationry vibration of vehicle as well as to identify dynamic load on it. |
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| Keywords: | vehicle nonstationary random vibration instantaneous frequency response function with space frequency instantaneous power spectral density |
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