| 齿轮裂纹故障的循环矩诊断 |
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| 引用本文： | 杨龙兴,贾民平,许飞云,钟秉林.齿轮裂纹故障的循环矩诊断[J].中国机械工程,2003,14(19):1621-1623. |
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| 作者姓名： | 杨龙兴 贾民平 许飞云 钟秉林 |
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| 作者单位： | 1. 江苏技术师范学院,江苏省常州市,213001
2. 东南大学机械系 |
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| 基金项目： | 国家 8 63高技术研究发展计划资助项目(2 0 0 1AA42 3 2 40 ) |
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| 摘 要： | 介绍了循环平稳信号的二阶循环矩分析和处理方法、循环矩分析的抑噪特性。在给定齿轮裂纹调频信号数学模型的基础上，证明了其二阶循环平稳性。利用二阶循环矩一滞后平面图，分析了裂纹故障信号特征的循环矩提取方法，进行了仿真实验。针对齿轮裂纹故障实例，说明其对故障信号解调的有效性。
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| 关 键 词： | 齿轮裂纹 循环矩 故障诊断 频率解调 |
| 文章编号： | 1004-132X(2003)19-1621-03 |
Cyclic Moment Diagnosis for Gear Crack Faults |
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| Yang Longxing.Cyclic Moment Diagnosis for Gear Crack Faults[J].China Mechanical Engineering,2003,14(19):1621-1623. |
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| Authors: | Yang Longxing |
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| Abstract: | This paper introduces an approach of cyclic autocorrelation analysis and application including the trait of noise suppression for the signal exhibiting cyclostationary first . Based on a mathematic model given for frequency- modulated signals of a cracked gear , whose characteristics exhibiting cyclostationary are proved . Making use of second-order cyclic moment-lag figures , the method for extracting cyclic moment of fault signals is analysed and the experimental simulation is demonstrated . Finally, the fault example aiming at gear crack is presented to show the availability of fault demodulation solution. |
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| Keywords: | gear crack cyclic moment fault diagnosis frequency demodulation |
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