Gear transmissions have always been a subject of study for many different reasons which
change due to the constant evolution of technology. Consequently, new topics must be …

Limited condition monitoring data are recorded with label information in practice, which
make the fault identification task more challenging. A semi-supervised learning (SSL) …

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 …

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 …

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 …

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

The misalignment and lead crown relief make the tooth partial contact along the tooth width
direction, which greatly affects the mesh characteristics. In this paper, a mesh stiffness model …