Gearbox is widely used in industrial and military applications. Due to high service load,
harsh operating conditions or inevitable fatigue, faults may develop in gears. If the gear …

Dynamic characteristics of cracked gear systems, also known as cracked-gear rotor systems,
have received increasing interests among industry and academy in the past two decades …

Gear tooth profile deviations are usually inevitable due to the application of intentional tooth
profile modification, the existence of undesired gear manufacturing errors and the tooth …

Considering the realistic spalling morphology obtained from the fatigue experiment, a novel
dynamic model for spalled gear pairs is established in this paper. Loaded tooth contact …

Based on the finite element theory and the loaded tooth contact analysis, an analytical-finite-
element model considering the complex foundation types and the crack propagation paths is …

Gears are prone to failures, which are difficult to detect in the early stage. In this study, the
time-varying mesh stiffness of gears teeth with different crack lengths is calculated, and the …

Due to the effects of gear flexibility, the extended tooth contact (ETC) can appear, which is
the phenomenon that the incoming tooth pair gets into contact ahead of the theoretical start …

Plentiful work has been done for condition monitoring (CI) and fault diagnosis of fixed-axis
gearboxes. However, still it is found that articles citing condition indicators for fault diagnosis …

The main purpose of condition monitoring in gear systems is to facilitate condition-based
maintenance (CBM) by detecting the degradation of components, eg gear teeth, before the …

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 …