Simulation and experiments results show that the full information time-frequency methods can greatly improve the nicety and reliability of rotating machinery fault diagnosis.

• 仿真算例与实验表明,基于信息融合的上述三种时频分析方法与单通道的信号分析相比,前者均能体现信息融合的优越性,大大提高旋转机械故障识别的准确率和可靠性。