750KW Wind Turbine Generator System Gearbox Dynamics Simulation Analysis

摘要

In the operation of Wind turbine generator system has the fierce system vibration, which has the very tremendous influence on gearbox's movement precision and gear's life. As for the complexity of gearbox's structure and working conditions, it is necessary to research on the vibrate question of wind turbine gearbox. To this situation of gearbox, this paper designed and modeled again. This paper based on multibody system dynamic method, modality vibration, impact-contact theory, taked 750KW wind turbine gearbox as the research object. Through the simulation analysis of gearbox, obtains the gear the impact force as well as the kinetic energy along with the time variation curve. This paper become the high speed gear shaft the flexible body to carry on the stress analysis, obtains the high speed gear shaft's stress distribution map for the gearbox optimization design in the future has laid the foundation.