In this article, the challenges in condition monitoring and fault diagnosis of rotating
machinery under speed-varying working condition is discussed. A general review is then …

Multi-channel signals collected by multiple sensors contain more operating information than
single-channel signal, so multi-channel signal processing method can improve confidence …

Vibration responses of faulty gear contain modulation components that are commonly used
as the indicators to detect the fault. The modulation mechanism has not been revealed …

Gearbox tooth crack diagnosis under Time-Varying Operating Conditions (TVOC) is a
challenging issue. TVOC induce both Amplitude Modulation (AM) and Frequency …

The localized failures of gears introduce cyclic-transient impulses in the measured gearbox
vibration signals. These impulses are usually identified from the sidebands around gear …

The open-circuit fault detection and localization (FDL) scheme plays a significant role in
improving the reliability of modular multilevel converters (MMCs). This article presents a …

Diagnosis of gearbox tooth cracks at an early stage is important to prevent catastrophic
failures. The time synchronous average (TSA) of vibration signals of gearboxes with a tooth …

Fault diagnosis of gears is crucial for maintaining the stable operation of a gearbox within a
mechanical system. Traditional envelope demodulation methods depend on the distribution …

A statistical model of gear mesh vibration signals is proposed in this paper. It is seen that the
sample mean is first removed from the gear mesh vibration signal, and the remaining signal …

摘要变转速下, 传统的等时间间隔采样所获得的机械动态信号已不再保持原有的周期特性, 此时,
无法采用经典的基于傅里叶变换理论谱分析方法来分析信号. 为此, 各种针对变转速机械设备 …