| 引用本文: | 陈循,田江红,温熙森,等.阶比谱分析与汽车起动电机故障的实时诊断.[J].国防科技大学学报,1996,18(4):44-48.[点击复制] |
| Chen Xun,Tian Jianghong,Wen Xisen,et al.The Order Ratio Spectrum Analysis and the Realtime Fault Diagnosis of the Car-Starters[J].Journal of National University of Defense Technology,1996,18(4):44-48[点击复制] |
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| 阶比谱分析与汽车起动电机故障的实时诊断 |
| 陈循, 田江红, 温熙森, 唐丙阳 |
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(国防科技大学 机电工程与仪器系 湖南 长沙 410073)
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| 摘要: |
| 本文主要论述阶比谱分析方法及其在汽车起动电机故障实时诊断中的应用。首先阐述了阶比谱分析的原理以及阶比采样中混迭与泄漏的产生及其抑制方法，然后讨论了如何在起动电机运行过程短、升速快的情况下获取感兴趣的噪声信号，进而采用阶比谱分析方法从信号中提取故障特征信息，最后利用阀值非判别法起动电机的故障进行实时诊断。 |
| 关键词: 阶比谱分析，特征提取，起动电机，噪声监测，实时诊断 |
| DOI： |
| 投稿日期：1996-03-12 |
| 基金项目: |
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| The Order Ratio Spectrum Analysis and the Realtime Fault Diagnosis of the Car-Starters |
| Chen Xun, Tian Jianghong, Wen Xisen, Tang Bingyang |
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(Department of Electromechanics and lnstrumentation，NUDT，Changsha，410073)
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| Abstract: |
| This paper mainly treats the order ratio spectrum analysis（ORSA) and its application to the realtime fault diagnosis of the car-starters. First，it elaborates the principle of the ORSA and the way of generating and the method of being restrained to the aliasing and leakage in the process of order ratio sampling. Then the paper discusses how to acquire the interested noise signals in the short working process of the car-starters with the rapid acceleration，and how to extract the information of their fault features from the signals in accordance with the ORSA. Finally it diagnoses realtimely the faults of the car-starters by means of threshold judgement. |
| Keywords: order ratio spectrum analysis,feature extraction,car-starter,noise monitoring,realtime diagnosis |
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