Load Sharing Design of 8 MW Wind Power Gearbox based on ADAMS Simulation Driving

Abstract

Improving the load sharing property of multiple planets is not only one of the effective methods to improve the large megawatt wind turbine gearbox power density,but also is the key to the design of wind turbine gearbox. Taking the latest research and development of 8 megawatt wind offshore wind power gearbox as the research object,and the rigid flexible coupling dynamics model with a gearbox of new configuration and initial parameters is established by using the ADAMS. The real dynamics analysis of functional virtual prototype is carried out to research the bearing property of planet gears and pinions,and then conduct its contained load sharing design. The load sharing of each planetary wheel and pinion is analyzed by fitting data of the extracting gear meshing force simulation data,and take center external gear in ordinary gear train and the internal ring gear in the differential gear train floating as design scheme in order to improve the system load characteristics,the results show that the performance of the load sharing is effectively improved. This study laid the foundation for the detailed structure design of high power density megawatt wind power gearbox.