局域波法在柴油机气缸磨损故障诊断中的研究

Study on Diagnosis of Diesel Engine Piston-Liner Wearing Faults Based on Partial Wave Method

介绍了局域波法的基本理论 ,分析了它的特性 ;提出了局域波时频分析基础上的瞬时频率波动及能量分析的方法 ,通过对柴油机缸套活塞磨损故障的诊断 。

The basic theory of Partial Wave Method was introduced and the characteristics were analysed. It presented instantaneous frequency fluctuation and energy analysis method based on time-frequency analysis of Partial Wave Method. The results demonstrate that the method can effectively identify the diesel engine piston-liner wearing faults.