李宏坤   

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Language:English

Paper Publications

Title of Paper:基于小波K-L信息量柴油机故障诊断方法的研究

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Date of Publication:2004-04-01

Journal:农业机械学报

Included Journals:PKU、ISTIC、CSCD

Volume:35

Issue:2

Page Number:138-141

ISSN No.:1000-1298

Key Words:柴油机;故障诊断;小波分解;AR模型;K-L信息量

Abstract:根据柴油机表面振动信号非平稳时变的特性,采用小波对柴油机缸体表面的振动信号进行分解得到特征信息量,并以此建立AR模型,计算得到K-L信息量.提出了基于小波K-L信息量的模式识别方法,实现故障诊断技术的量化.对柴油机活塞和缸套间的磨损状态进行了故障诊断实例分析,诊断结果说明基于小波K-L信息量的模式识别方法对柴油机的故障诊断具有很好的实用性.

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