Artificial intelligence (AI)-based rotor fault diagnosis (RFD) poses a variety of challenges to
the prognostics and health management (PHM) of the Industry 4.0 revolution. Rotor faults …

The vibration phenomena which occur in rotary machines, such as power plants, can result
in catastrophic consequences. Any failure in any power plant section can result in extended …

In order to reveal the nonlinear vibration characteristics of an actual dual-rotor-aero-engine
with blade-casing rubbing, a dual-rotor-bearing-coupling misalignment system with blade …

Faults such as misalignment, rotor cracks and rotor to stator rub can exist collectively in rotor
bearing systems. It is an important task for rotor dynamic personnel to monitor and detect …

Time-frequency analysis (TFA) technique is an effective approach to capture the changing
dynamic in a nonstationary signal. However, the commonly adopted TFA techniques are …

Rolling element bearings (REBs) play a most critical role in various industrial machinery. A
clearly and in-depth understanding of vibration characteristics of REBs is very helpful for …

In order to improve energy efficiency and compact structure, the dual-rotor structure, with low-
pressure rotor and high-pressure rotor, has been widely used in aero-engines. In severe …

Misalignment is widely manifested in a complex, multi-span rotor system, and its fault
identification is highly preferred for health condition monitoring, which is, however …

Misalignment is one of the most commonly observed faults in rotating machines. However,
there have been relatively limited research efforts in the past to understand its effect on …

Inter-shaft rub-impact, ie, the rub-impact between two rotors, may occur in an aeroengine
dual-rotor system. This paper represents the first attempt to investigate the nonlinear …