Increasingly demanding performance standards and operating requirements are driving the
growing interest on lubrication technologies in gear transmission systems. Optimized gear …

This article summarizes published journal articles on planetary and epicyclic gear dynamics
and vibration. Research in this field has increased dramatically over the past two decades …

Considering time-varying meshing stiffness, comprehensive gear error and piece-wise
backlash nonlinearities, a torsional nonlinear dynamic model of multistage gear of planetary …

A non-linear dynamic model of a fixed-axis spur planetary gear-rotor-bearing system for the
gearbox in Geared Turbofan (GTF) engine is established that considers the time-varying …

Planetary bearings are the key components of the double planetary gear set because of
their high loading capacity. As the supporting parts for the planet gears, their behaviors have …

Amplitude modulation (AM) in planetary gears, arising from rotation of carrier, is a
predominant phenomenon that yields unique yet complicated dynamic behavior. However …

This paper establishes a dynamic model of Geared turbofan (GTF) star gear-rotor coupling
system, in which the flexibility of shaft, disk, shell, diaphragm coupling, ring gear, and carrier …

In order to identify gear crack failure, modelling the mesh stiffness of a cracked tooth is
crucial. In this study, an analytical model of the mesh stiffness for cracked helical gears …

In the previous study, the gear meshing parameters are usually treated as constants,
however, the translational motion, caused by bearing deformation, will lead to the variation …

The structural flexibility of planetary gear trains (PGTs) is a significant factor that affects tooth
loads and system vibrations, especially in heavy-duty wind turbine gearboxes. Therefore, it …