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 …

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 …

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 …

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 …

Gear systems operating at high speeds and under heavy loads are susceptible to
continuous multiple tooth surface spalling. The time-varying meshing stiffness (TVMS) model …

Time-varying mesh stiffness is one of the main internal excitations of gear dynamics. With
the growth of gear tooth fault, like pitting, cracking and spalling, the mesh stiffness amplitude …

Focusing on gear transmission systems having thin web and hole structures for energy
saving and weight reduction, this work aims to propose an effective method for dynamical …

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 …

Dynamical modeling of a gear system with faults has been an important research topic for
understanding fault features and their associated fault vibration mechanisms. Due to the …

Gear tooth surface fatigue is one of the most common failure modes of gears. Surface fatigue
manifests on two principle phenomena, namely spalling and pitting. Spalls are localized …