Dynamic Modeling And Analysis Of Gear Planetary Drive Transmission In The Wind Turbine Drivetrain System

Increasing speed gear-box is one of the most important components of wind-turbine, its performance has a crucial impact on the whole system. Because of its special environment for varying load condition, high operating conditions(with the continuously improve of the power of single wind-turbine, the operating environment is higher and higher)and other adverse factors, it made special demands for the design, manufacture, installation of the gear transmission system, and the research of its dynamic characters is now a hot topic around the world. However, the vibration and noise of the wind-turbine that design and manufacture in domestic is more serious than the products abroad. Therefore, the research on the vibration and noise of gear transmission is one of the most urgent issues to be resolved.The subject is the MW wind turbine gear drive system for the study, based on the dynamic gear-rotor system theory, for the purpose of changing natural frequency of gear-rotor system, to simulate gear-rotor system dynamic mode value by the method of classical mechanics concentrated mass, to establish the dynamic equations, combined with high-speed wind turbine drive system instance, use of Matlab software for solving systems of all values of natural frequencies. The thesis researches system natural frequency variation by changing system parts geometry parameter and proposes an effective way to change system natural frequency avoiding resonance. It has important theoretical value and significance to design the wind turbine and control the vibration and nose. Design the system of dynamics analysis with GUI of Matlab.