| 基于广义谐波小波分析的低速重载轴承故障诊断 |
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| 引用本文： | 李友荣 肖涵 王志刚 吕勇 侯澍曼. 基于广义谐波小波分析的低速重载轴承故障诊断[J]. 武汉冶金科技大学学报, 2008, 31(1): 1-5 |
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| 作者姓名： | 李友荣 肖涵 王志刚 吕勇 侯澍曼 |
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| 作者单位： | 武汉科技大学机械传动与制造工程湖北省重点实验室,湖北武汉430081 |
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| 基金项目： | 国家自然科学基金资助项目（50705069）. |
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| 摘 要： | 研制出一种低频振动传感器作为谐振器，利用谐波小波在频域连续分布且具有严格的盒形谱特性，通过适当调整参数m和n，构造出不同频段的带通滤波器对信号进行广义谐波小波变换。通过广义谐波小波变换实现低速重载轴承振动信号的共振解调，从而提取出故障轴承的低频冲击信息．为低速重载轴承的故障诊断提供了一种新的有效方法。运用该方法准确判断出炼钢转炉悬挂齿轮箱耳轴轴承的故障。
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| 关 键 词： | 广义谐波小波 低速重载轴承 故障诊断 共振解调 |
| 文章编号： | 1672-3090（2008）01-0001-05 |
| 收稿时间： | 2007-07-12 |
Fault diagnosis of low-speed, high-load bearing based on generalized harmonic wavelet |
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| Li Yourong , Xiao Nan, Wang Zhigang , Lu Yong , Hou Shumin. Fault diagnosis of low-speed, high-load bearing based on generalized harmonic wavelet[J]. , 2008, 31(1): 1-5 |
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| Authors: | Li Yourong Xiao Nan Wang Zhigang Lu Yong Hou Shumin |
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| Abstract: | A low-frequency shock transducer used as a resonator is developed. Making use of the box- like spectrum and frequency-domain continuous distribution of harmonic wavelet, a band-pass optical filter with different frequency channels is constructed by appropriately adjusting parameters m and n for the generalized harmonic wavelet transformation of the signal. With sympathetic vibration demod- ulation of the vibration signal of the low-speed, high-load bearing which is realized by means of gener- alized harmonic wavelet transformation, the impact information of faulty bearing is extracted, which promises a new and effective method for the fault diagnosis of the bearing. With the proposed meth- od, the failure of the bearing in the suspended gearbox of a converter is identified. |
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| Keywords: | generalized harmonic wavelet low-speed, high-load bearing fault diagnosis sympathetic vibration demodulation |
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