| 铁路货车轮对轴颈轴承内圈松动故障检测 |
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| 引用本文： | 蔡海潮,李孟源,靳颜博,张小瑞.铁路货车轮对轴颈轴承内圈松动故障检测[J].轴承,2007(2):29-31. |
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| 作者姓名： | 蔡海潮 李孟源 靳颜博 张小瑞 |
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| 作者单位： | 1. 河南科技大学,机电工程学院,河南,洛阳,471003
2. 郑州铁路局,郑州北车辆段,郑州,450053 |
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| 基金项目： | 河南省科技厅科技攻关项目 |
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| 摘 要： | 采用声发射和振动加速度传感器对铁路货车轮对轴承内圈松动故障进行检测,并用小波包分析方法提取故障信号的能量特征向量,通过对内圈不松动和松动两种情况下能量分布的比较,提取高频带内能量与总能量之比作为特征参数,可有效诊断内圈松动故障。
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| 关 键 词： | 滚动轴承 内圈 故障诊断 配合 小波包分析 声发射 振动 |
| 文章编号： | 1000-3762（2007）02-0029-03 |
| 收稿时间： | 2006-09-20 |
| 修稿时间： | 2006-11-03 |
Detection on Looseness of Inner Rings for Freight Train Bearings |
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| CAI Hai-chao,LI Meng-yuan,JIN Yan-bo,ZHANG Xiao-rui.Detection on Looseness of Inner Rings for Freight Train Bearings[J].Bearing,2007(2):29-31. |
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| Authors: | CAI Hai-chao LI Meng-yuan JIN Yan-bo ZHANG Xiao-rui |
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| Affiliation: | 1. Henan University of Science and Technology, Luoyang 471003, China; 2. Zhengzhou North Depot of Zhengzhou Railway Bureau, Zhengzhou 450053, China |
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| Abstract: | Sensors of Acoustic Emission(AE) and vibration acceleration are used to inspect the fault of looseness for inner rings of freight train bearings,and the method of wavelet packet analytical is adopted to withdraw characteristic vectors of the fault signals.Energy distribution of inner rings in the conditions of no looseness and looseness are compared,and the ratio between the energy in high frequency and total energy is taken as a characteristic parameter.The fault of looseness for the inner rings is diagnosed effectively. |
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| Keywords: | rolling bearing inner ring fault diagnose match wavelet packet analysis acoustic emission vibration |
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