| 精密仪器运输车辆隔振器的减振性能分析 |
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| 引用本文： | 赵玲,唐岚,向春生.精密仪器运输车辆隔振器的减振性能分析[J].西华大学学报(自然科学版),2011,30(4):1-4. |
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| 作者姓名： | 赵玲 唐岚 向春生 |
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| 作者单位： | 1. 西华大学交通与汽车工程学院,四川成都,610039
2. 中国科学院光电技术研究所,四川成都,610041 |
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| 基金项目： | 汽车工程四川省高校重点实验室建设项目支持(SGXZD9902-10-1); 中国科学院光电技术研究所项目支持(09203015) |
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| 摘 要： | 对精密仪器运输车辆隔振器的减振性能进行分析,提出一种改进的基于奇异值分解(SVD)的小波变换降噪方法,采用该方法对隔振装置测试数据进行降噪,得到了优于传统小波阈值降噪方法的隔振器幅频特性。通过幅频特性分析,表明钢丝绳隔振器对于20 Hz以下信号有着很好的减振能力,但对于高频信号,特别是运输车的发动机转速和给精密仪器供电的发电机信号引起的振动却有着较大的放大作用。本文的分析结果对隔振器减振性能的进一步分析与改进奠定了基础。
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| 关 键 词： | SVD分解 小波变换 降噪 钢丝绳隔振器 |
Analysis of Damping Performance for Vibration Isolation System of Precision Instrument Transport Vehicles |
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| ZHAO Ling,TANG Lan,XIANG Chun-sheng.Analysis of Damping Performance for Vibration Isolation System of Precision Instrument Transport Vehicles[J].Journal of Xihua University:Natural Science Edition,2011,30(4):1-4. |
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| Authors: | ZHAO Ling TANG Lan XIANG Chun-sheng |
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| Affiliation: | ZHAO Ling1,TANG Lan1,XIANG Chun-sheng2 (1.School of Transportation and Automotive Engineering,Xihua University,Chengdu 610039 China,2.The Institute of Optics and Electronics the Chinese Academy of Sciences,Chengdu 610041 China) |
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| Abstract: | For damping performance analysis of vibration isolation system for precision instrument trucks,a new wavelet transform de-noising method based on singular value decomposition(SVD) was proposed.Better characteristics of vibration isolator amplitude frequency could be obtained by using this method to reduce noise of test data for vibration isolation devices than traditional wavelet threshold de-noising method.Through the analysis of amplitude frequency characteristics,it is concluded that the wire rope vibrat... |
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| Keywords: | singular value decomposition wavelet transform de-noising wire rope vibration isolation system |
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