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 …

Several methodologies for the mesh stiffness calculation in spur gears have been found in
the literature, in the last decades. Based on a bibliographical analysis and the research …

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 …

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 …

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 …

As a result of gear body flexibility, fillet foundation stiffness is defined as the meshing force
needed for unit gear body-induced tooth deflections. However, it has long been …

A model for determining mesh stiffness of cylindrical gears is proposed using a combination
of finite element method (FEM) and local contact analysis of elastic bodies. The deformation …

Due to the lack of efficient formulas, fillet foundation stiffness under double tooth
engagement has long been a challenging problem for mesh stiffness calculation of spur …

In the last research [S. Li, Effects of machining errors, assembly errors and tooth
modifications on load-carrying capacity, load-sharing rate and transmission error of a pair of …

Compound multistage gearing systems are widely used in rotating machinery to provide
high speed-reduction ratios and heavy load capacity. Modeling and characterizing the …