摘要
小波奇异性检测方法作为一种有效的信号局部奇异程度的定量描述方法 ,已在许多领域展开应用。针对当前普遍采用的基于二进小波变换的奇异性检测方法的不足 ,建立了基于连续小波变换的奇异性检测方法 ,具有更细致的局部奇异性刻画能力。本文将这种方法应用在压缩机气阀的故障诊断中 。
Singularity detection using wavelet transform, the most popularly, dyadic discrete wavelet transform has been successfully used in many research fields. In fact, singularity detection using continuous wavelet transform has much more ability for quantitative description of singularity than that of dyadic discrete wavelet transform. In the article, the method of singularity detection using continuous wavelet transform is introduced and used for mechanical fault diagnosis. The results show that it is very effective for local singularity description.
出处
《振动工程学报》
EI
CSCD
2000年第4期523-530,共8页
Journal of Vibration Engineering
关键词
故障论断
奇异性检测
气阀
fault diagnosis
wavelet
singularity
detection
valve
