| 基于时变信号汽车后桥主锥齿轮总成故障检测与诊断 |
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| 引用本文： | 史延枫,余德平,任德均,周建国,姚进.基于时变信号汽车后桥主锥齿轮总成故障检测与诊断[J].汽车工程,2008,30(2):181-185. |
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| 作者姓名： | 史延枫 余德平 任德均 周建国 姚进 |
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| 作者单位： | 1. 四川大学制造科学与工程学院,成都,610065
2. 四川建安工业有限责任公司,雅安,625000 |
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| 摘 要： | 针对汽车后桥主锥齿轮总成异响振动的时域波形特征,设计出可调的阈值参数,提出了随波形移动的时间窗和幅值窗分析故障特征的方法,建立起基于非稳态时变信号分析汽车后桥主锥齿轮总成故障的检测与诊断系统,解决了实际生产中人为因素造成诊断与识别误判率较高的问题,提高了生产检测质量水平.
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| 关 键 词： | 汽车后桥 振动信号 移动窗 故障诊断 |
| 收稿时间： | 2007-01-22 |
| 修稿时间： | 2007-05-08 |
Faults Detection and Diagnosis of Final Drive Gear Assembly in Automotive Rear Axle Based on Time-varying Signals |
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| Shi Yanfeng,Yu Deping,Ren Dejun,Zhou jianguo,Yao Jin.Faults Detection and Diagnosis of Final Drive Gear Assembly in Automotive Rear Axle Based on Time-varying Signals[J].Automotive Engineering,2008,30(2):181-185. |
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| Authors: | Shi Yanfeng Yu Deping Ren Dejun Zhou jianguo Yao Jin |
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| Abstract: | In view of the time-domain waveform characteristics of abnormal noise and vibration of the final drive gear assembly in automotive rear axle, the adjustable thresholds and parameters are designed, and a method to analyze the fault features by shifting the time window and amplitude window with the varying waveform is proposed. Then, a fault detection and diagnosis system for the final drive gear assembly based on non-steady time varying signals is developed, thus the problem of higher misjudgment rate in faults identification caused by man-made factors is resolved with the inspection quality in production improved. |
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| Keywords: | automotive rear axle vibration signal shifting window fault diagnosis |
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