Dynamic simulation and scale model experimental analysis of planetary gears train of semi-direct drive wind turbine

The planetary gears system is an important part as the speed increasing gearbox commonly used in the semi-direct drive wind turbines. In this paper, the 3-D model of the speed increasing planetary gear system is established by CAD software. The motion pairs, drive and load of the model are defined by using ADAMS software. The dynamical mesh force and vibration responses of the planetary gear, ring and sun gear are obtained based on the multi-body dynamics. The planetary gear sets is very big and expensive which are used in MW-level wind turbine, so that the scale model of planetary gear system is set up by using the similar theory. The modeling, simulation and testing are carried out, and the vibration tendency of the planetary gears train of semi-direct drive wind turbine is verified through the scale model experimental analysis.