| 循环统计量在轴承故障诊断中的应用 |
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| 引用本文： | 史庆峰,;张艳红,;颜军明. 循环统计量在轴承故障诊断中的应用[J]. 中国核电, 2009, 0(3): 234-237 |
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| 作者姓名： | 史庆峰, 张艳红, 颜军明 |
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| 作者单位： | [1]核电秦山联营有限公司,浙江海盐314300; [2]中国核电工程有限公司,北京100840 |
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| 摘 要： | 通过分析旋转机械振动信号的特点，指出旋转机械的振动信号为循环平稳信号。通过对循环谱密度分析方法的特性分析，指出应用循环谱密度分析方法可以在循环频率域有效提取出滚动轴承的冲击故障频率。通过仿真信号验证了该分析方法的有效性，并将之应用于泵类滚动轴承的故障诊断中。
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| 关 键 词： | 轴承 循环平稳信号 循环谱密度 冲击频率 |
Fault diagnosis of rolling bearing based on cyclic spectrum density |
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| Affiliation: | SHI Qing-feng, ZHANG Yan-hong, YAN Jun-ming (1. Nuclear Power Qinshan Joint Venture Co., Ltd., Haiyan of Zhejiang Prov. 314300, China; 2. China Nuclear Power Engineering Co., Ltd., Beijing 100840, China) |
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| Abstract: | The paper considered the vibration signals of rotating equipment as cydostationary signals through analyzing the features of this kind of signals. Based on the analytic method of cyclic spectrum density, the paper pointed out that the impact frequency could be extracted effectively with the help of scanning cyclic frequency domain. The validity of the method of cyclic spectrum density is proved by simulating signals and the method is applied to the diagnosis of rolling bearings. |
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| Keywords: | bearing cyclostalioary signals cyclic spectrum densityp impact frequency |
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