基于分形的滚动轴承故障模式的识别

Identification of Failure Mode of Rolling Bearing Based Waveform Distribution

针对滚动轴承振动信号的特点 ,从分形原理出发 ,利用盒维数的概念 ,对滚动轴承故障产生的非平稳、非线性信号进行了定量描述。试验结果表明 ,由于滚动轴承不同故障的动力学产生的机制不同 ,其盒维数明显不同。因此利用盒维数可以准确地识别滚动轴承的故障模式。

Pointing at characteristics of vibration signals of rolling bearing,according to waveform distribution principle,and using the box dimension concept,the quantitative description for non-steady,non-linear signal produced by rolling bearing failure have been made.The results show that the failure mode of rolling bearing can be identified by box dimension,because of dynamic mechanism of rolling bearing failure and its box dimension are different.