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

Modeling planetary gearbox helps people understanding its dynamic behavior. In addition, it
can be a useful tool to simulate faults either simple or combined to know what is the …

The planet gear crack induced speed fluctuation is fully considered in the three effect factors
of vibration signal like path weighting function, meshing forces and the measured-direction …

Accurate modeling of the vibration signal model of planetary gearboxes is essential for the
subsequent fault diagnosis. According to the existing improved phenomenological model …

The paper presents up-to-date multidisciplinary review of scientific knowledge and industrial
guidelines concerning the issue of technical assessment of epicyclic gearboxes on the basis …

The lumped parameter model (LPM) is a common modeling method for simulating the
vibration signal of the planetary gearbox. Generally, the simulation results are not directly …

Planetary gearboxes are widely used in various types of machinery and play an important
role in the transmission. Since the structure of planetary gearbox is more complicate than the …

With the construction of periodic functions relative to the meshing frequency, rotating
frequency, and the faulty frequency, etc., the phenomenological model provides a simple …

In order to investigate the behaviour of worm drives, a new dynamic model, composed of two
blocks, is established and used to extract numerical results. The tooth deflection of the worm …

The nonlinear effects in gearboxes are a key concern to describe accurately their dynamic
behavior. This task is difficult for complex gear systems such as planetary gearboxes. The …