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《Journal of Chongqing University》 2010-03
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Dynamic optimization design of gear transmission system for wind turbine

ZHANG Qing-wei,ZHANG Bo,WANG Jian-hong,QIN Da-tong (State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,P.R.China)  
The differential equation which governs the behavior of the gear transmission system of 1.5 MW wind-turbine is established.The external excitation caused by wind speed fluctuation is discussed and the internal excitation due to time-varying mesh stiffness and comprehensive error is also analyzed.The calculating formulations of the harmonic balance method of nonlinear dynamic equations are presented.Then,the multi-objective dynamic optimization model is developed to minimize the value of vibration acceleration and the overall volume.The optimization of a practical example using mixed-discrete combined programming is performed.The result shows that the proposed method of modeling and optimization design can effectively reduce the wind turbines gearbox vibration levels and weight.
【Fund】: 国家自然科学基金资助项目(50675231);; 国家支撑计划项目(2006BAF01B07-01)
【CateGory Index】: TM315
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