| Dynamic analysis and optimization of gear trains in a megawatt level wind turbine |
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| 引用本文： | QIN Da tong,GU Xi guo,WANG Jian hong and LIU Jian guo.Dynamic analysis and optimization of gear trains in a megawatt level wind turbine[J].保鲜与加工,2009(4):408-414. |
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| 作者姓名： | QIN Da tong GU Xi guo WANG Jian hong and LIU Jian guo |
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| 作者单位： | State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P. R. China;;State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P. R. China;;State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P. R. China;;Nanjing High Speed Gear Manufacturing Co., Ltd., Nanjing 210000, P. R. China |
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| 摘 要： | Through coupling vibration analysis of the transmission system of a 1.5 MW wind turbine gearbox, a torsional vibration model of a gear drive system in wind turbines is established. The fourth order Runge Kutta integration method is applied to calculate the dynamic response of a gear system caused by wind loads, time varying meshing stiffness, and system damping. The harmonic balance method is used to find the analytic solution. Based on the solution, a mathematical model for optimum gear system design is established. The model aims at minimizing the vibration acceleration of the planet gear and the total mass of the gear transmission system. The optimization toolbox in MATLAB program is adopted to obtain the optimal solution. A calculated example shows that the primary natural frequency of the gear system has been raised, the dynamic properties of the gear train have been improved remarkably, and the total mass of the gear train has been decreased.
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| 关 键 词： | wind driven generator gear train torsional vibration dynamic response optimum design |
| 收稿时间： | 2008/12/10 0:00:00 |
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