| 随机减量技术中周期激励的影响及消除方法 |
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| 引用本文： | 孟庆丰,何正嘉. 随机减量技术中周期激励的影响及消除方法[J]. 振动与冲击, 2003, 22(1): 100-102 |
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| 作者姓名： | 孟庆丰 何正嘉 |
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| 作者单位： | 西安交通大学机械工程学院,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目 (50 0 750 67)，国家 863计划资助项目 (2 0 0 1AA41 3330 ) |
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| 摘 要： | 本文针对机械系统中通常存在确定性周期激励的事实 ,论证了周期干扰成分的存在对提取的随机减量特征信号的影响 ,基于数字滤波技术提出了一种从周期干扰环境中提取随机减量特征信号的简便方法。在回转机械稳定性监测中的应用实例表明本文提出的方法是有效的。
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| 关 键 词： | 随机减量技术 周期信号干扰 机械监测 |
| 修稿时间： | 2002-03-26 |
Influence of Periodic Interference on Randomdec Signature and its Eliminating Method |
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| Meng Qingfeng He Zhengjia. Influence of Periodic Interference on Randomdec Signature and its Eliminating Method[J]. Journal of Vibration and Shock, 2003, 22(1): 100-102 |
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| Authors: | Meng Qingfeng He Zhengjia |
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| Abstract: | In accordance with the fact that periodic vibration is generally existent in machinery systems,the influence of the periodic component on the application of random decrement technique in vibration signature analysis is studied in the paper.Based on digital filtering technique,a simple method of extracting randomdec signature from the signal with periodic interference is proposed.A practical example for machinery monitoring shows the effectiveness of the proposed method. |
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| Keywords: | random decrement technique periodic interference machinery monitoring |
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