基于相对小波包能量特征向量的故障诊断

在小波及小波包分析的基础上引进相对小波包能量特征向量的概念,提出了一种建立旋转机械故障库的新方法,并结合模式判别的知识,引进欧几里德距离公式作为判据,使故障诊断公式化、定量化。实验结果表明这种方法能够很快地诊断出转子台故障类型,为旋转机械的故障诊断提供了新方向。

Fault Diagnosis Based on Wavelet Packet Energy Eigenvector

Introduces the wavelet packet energy eigenvector based on wavelet and wavelet packet analysis,and presents a new method about building rotating mechanical fault dictionary,then combines the knowledge of the pattern recognition,finally takes Euclidean space range formula as criterion,that makes fault diagnosis to put into formula,the fixed amount.The practical example shows that this method can diagnose the kind of rotation machine faults and develops a new direction of the fault diagnosis of rotation machine.