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 …

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 …

Time-varying mesh stiffness and gear transmission errors are the major excitations to gear
dynamics system. How to calculate them more accurately and efficiently has attracted much …

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 …

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 …

Considering the influence of roughness on the normal contact stiffness of gears, a fractal
contact model suited for gear pair contact has been established. On the basis of modified …

Time-varying mesh stiffness is considered the primary excitation in gear vibrations. An
accurate evaluation of mesh stiffness is of great importance when studying gear vibrations …

An improved time-varying mesh stiffness (TVMS) model of a helical gear pair is proposed, in
which the total mesh stiffness contains not only the common transverse tooth bending …

This paper concentrates on the gear tooth crack detection by investigating the effects of tooth
crack on the vibration behaviors of a nonlinear spur gear system. Firstly, an analytical tooth …