Dynamic characteristics analysis of planetary gear system with internal and external excitation under turbulent wind load

According to the working characteristics of a 1.5 MW wind turbine planetary gear system under complex and random load, two-parameter Weibull distribution model is used describe speed, time-varying load caused by speed obtained. The nonlinear dynamic transmission established using lumped parameter method, relative relations among various components are derived Lagrange method. Then, relationship between solved Runge Kutta Considering influence stiffness ratio on system, response cyclic analyzed. analysis results show that variation makes have abundant dynamics behavior can get rid chaos enter into stable periodic motion changing properly premise ensuring efficiency. For variable pitch turbine, change external increases instability system.