| 基于共振解调的拉普拉斯金字塔变换在直升机传动系统滚动轴承故障检测中的应用 |
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| 引用本文： | 赵焕兴,周威,王光辉. 基于共振解调的拉普拉斯金字塔变换在直升机传动系统滚动轴承故障检测中的应用[J]. 机械研究与应用, 2011, 0(1): 41-43 |
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| 作者姓名： | 赵焕兴 周威 王光辉 |
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| 作者单位： | 1. 兰州大学,信息科学与工程学院,甘肃,兰州,730000;中国人民解放军61330部队,河南,新乡,453000
2. 兰州大学,信息科学与工程学院,甘肃,兰州,730000 |
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| 摘 要： | 滚动轴承效障是直升机传动系统常见故障之一,对直升机机械振动信号进行时频分析从而检测出是否存在故障是研究的热点.该文提出一种方法,即对提取的传动系统滚动轴承振动信号进行共振解调预处理,再进行拉普拉斯金字塔分解,对相应的分解系数进行重构,然后在频谱中检测是否有冲击能量较大的故障频率,从而判断是否存在故障.对比分析结果表明,...
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| 关 键 词： | 直升机 传动系统 轴承故障 共振解调 拉普拉斯金字塔变换 |
Research on faults detection of helicopter transmission system rolling bearings based on resonant demodulation and laplacian pyramid transform |
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| Zhao Huan-xing,Zhou Wei,Wang Guang-hui. Research on faults detection of helicopter transmission system rolling bearings based on resonant demodulation and laplacian pyramid transform[J]. Mechanical Research & Application, 2011, 0(1): 41-43 |
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| Authors: | Zhao Huan-xing Zhou Wei Wang Guang-hui |
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| Affiliation: | 1.School of information science and engineering,Lanzhou university,Lanzhou Gansu 730000,China; 2.61330 people′s liberation army troops,Xinxiang Henan 453000,China) |
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| Abstract: | Bearing faults were often found in helicopter transmission.Detection of such faults using time-frequency analysis is a focus research topic.This paper presents a new faults detection method based on resonant demodulation and Laplacian pyramid transform.Comparative analysis shows that this new method has better fault detection results than fourier transform method and wavelet transform method for inner ring and outer ring crack faults of rolling bearing. |
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| Keywords: | helicopters transmission bearing fault resonant demodulation laplacian pyramid transform |
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