| 基于频响函数反演法的涡轮增压器基础激励辨识 |
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| 引用本文： | 应广驰,孟光,荆建平.基于频响函数反演法的涡轮增压器基础激励辨识[J].振动与冲击,2007,26(11):70-75. |
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| 作者姓名： | 应广驰 孟光 荆建平 |
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| 作者单位： | 上海交通大学机械系统与振动国家重点实验室,上海,200240 |
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| 摘 要： | 发动机运转时涡轮增压器轴承座处的振动响应用常规方法是不可测量的。使用频响函数反演法,通过测量涡轮增压器压缩室外壳的可测量点的振动响应,可以利用频响函数反演得到轴承座的响应,从而为涡轮增压器的转子动力学研究提供了基础激励。通过自由悬挂实验和振动台实验,证实频响函数反演法是有效可行的。最后,分析了影响精度的因素。
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| 关 键 词： | 频响函数 反演 涡轮增压器 振动激励辨识 |
| 修稿时间： | 2007-01-25 |
Foundation Excitation Idetification of Turbocharger's Vibration Response Based on Frequency Response Function Inversion Method |
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| Ying Guangchi,Meng Guang,Jing Jianping.Foundation Excitation Idetification of Turbocharger''''s Vibration Response Based on Frequency Response Function Inversion Method[J].Journal of Vibration and Shock,2007,26(11):70-75. |
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| Authors: | Ying Guangchi Meng Guang Jing Jianping |
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| Abstract: | The vibration response of the turbocharger bearing block, which can be applied as exciting base for turbocharger rotor dynamics research, is immeasurable when the engine is running on. In the paper, a frequency response function reversion method is presented to acquire the vibration response of turbocharger bearing block by means of testing the responses at measurable points on the compressor housing shell and getting their frequency response functions. The method is verified by free hanging experiment and platform vibrator experiment, and thus proved to be efficient and applicable. The factors that influence the accuracy are analyzed. |
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| Keywords: | frequency response function reversion turbocharger foundation excitation identification |
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