机械科学与技术2001，Vol.20Issue(1)：113-114,2.
基于小波分析的发动机气门漏气故障诊断研究
A Study on Wavelet-Analysis-Based Diagnosis for Leakage of Engine Valves
摘要
Abstract
In this paper, the acoustic characteristics and vibration diagnosis mechanism for leakage of engine valves are studied. The vibration signal at combustion is transformed by wavelet. In three kinds of condition, the energy ratio between the decomposition signal and general signal is obtained. It shows that the theoretical study is correct. The ratio between the energy in high frequency and total energy is used as a feature for diagnosing the fault of the leakage of the engine valve.关键词
发动机/气门/小波分析/故障诊断分类
能源科技引用本文复制引用
沈寿林,郑海起,谷德桥,彭顺堂..基于小波分析的发动机气门漏气故障诊断研究[J].机械科学与技术,2001,20(1):113-114,2.
