Based on the lumped parameter quality standard to establish four quality blocks of wind turbine flexible drive system model, overall consideration of the external wind load，the gear mesh stiffness，mesh damping and meshing error excitation to establish the gearbox dynamics equation. 1.5 MW wind turbine as the object of calculation, calculated the natural frequencies of flexible drive system and the dynamic meshing force of gearbox gear meshing, statistical analysis of gear dynamic meshing force through the rain flow count method, the results show that the dynamic meshing force have strong time-varying characteristics, which is basis for the gear and bearing design, life forecast model. Analysis stability of the flexible drive system, the results show that the deviation between the first order torsion vibration frequency of drive system and the rotor edgewise frequency was 7.5%, through reducing weight of main shaft about 8.5%, improve the first order torsion vibration frequency values 5%, then the deviation became was 11.9%, which meet the specification recommended value 10%. All results provided a theoretical foundation for the wind turbine drive system design and reliability research.
罗勇水，周民强，陈棋，崔峰，刘伟江. 兆瓦级风力发电机组传动系统动态特性研究[J]. 振动与冲击, 2015, 34(21): 113-118.
LUO Yongshui, ZHOU Minqiang, CHEN Qi, CUI Feng, LIU Weijiang. Research on dynamic characteristics of MW wind turbine drive system. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(21): 113-118.
[1] HALL J F, Mechklenborg C A, CHEN D M .et al .Wind energy conversion with a variable-ratio gearbox design and snalysis[J]. Renewalbe Energy, 2011,36(3):1075-1080.
[2] KAHRAMAN A, SINGH R. Non-linear dynamics of a spur gear pair[J]. Journal of Sound and Vibration, 1990,142(1):49-75.
[3] KAHRAMAN A, SINGH R. Non-linear dynamics of a geared rotor-bearing system with multiple clearances[J]. Journal of Sound and Vibration, 1991,144(3):469-506.
[4] LIN Jian，PARKER R G. Analytical characterization of the unique properties of planetary gear free vibration[J].Journal of vibration and Acousticas,1999,7(121):13-17.
[5] 孙涛，沈允文，孙智民，等.行星轮传动非线性动力学建模与方程[J]. 机械工程学报，2002,38(3):6-10.
SUN Tao, SHEN Yunwen, SUN Zhimin, et al. Study on nonlinear dynamic behavior of planetary gear train dynamic model and governing equation[J]. Chinese Journal of Mechnical Engineering, 2002, 38(3):6-10
[6] 孙涛，沈允文，孙智民，等. 行星齿轮传动非线性动力学方程求解与动态特性分析[J]. 机械工程学报，2002,38(3):11-15.
SUN Tao, SHEN Yunwen, SUN Zhimin, et al. Study on nonlinear dynamic behavior of planetary gear train solution and dynamic behavior analysis[J]. Chinese Journal of Mechnical Engineering, 2002, 38(3):6-10.
[7] 朱才朝，黄泽好，唐倩，等. 风力发电齿轮箱系统耦合非线性动态特性的研究[J]. 机械工程学报，2005,41(8):203-207.
ZHU Caichao, HUANG Zehao, TANG Qian, et al. Analysis of nonliner coupling dynamic characteristics of gearbox system about wind-driven generator[J]. Chinese Journal of Mechnical Engineering, 2005, 41(8):203-207.
[8] 王旭东，林腾蛟，李润方，等. 风力发电机组齿轮系统内部动态激励和响应分析[J]. 机械设计与研究，2006,22(3):47-49.
WANG Xudong, LIN Tengjiao, LI Runfang, et al. The internal dynamic excitation and response analysis of the gear system for the wind-driven generator[J]. Mechnical Design and Research, 2006,22(3):47-49.
[9] 李润方，陶泽光，林腾蛟，等. 齿轮啮合内部动态激励数据模拟[J]. 机械传动，2001,25(2):1-3.
LI Runfang , TAO Zeguang, LIN Tengjiao, et al. Numerical simulation for inner dynamic excitation of gearing[J].Journal of Mechanical Transmission, 2001,25(2):1-3.
[10] 李润方，王建军. 齿轮系统动力学[M]. 北京：科学出版社，1996.
LI Runfang , WANG Jianjun. Gear transmission system dynamics[M]. Beijing: Science Press, 1996.
[11] 王峰，方宗德，李声晋. 多载荷工况下人字齿轮传动系统振动特性分析[J]. 振动与冲击，2013，32(1):49-52.
WANG Feng, FANG Zong-de, LI Sheng-jin. Dynamic characteristics of a double helical gear under multi-load[J]. Journal of Vibration and Shock, 2013, 32(1): 49-52.
[12] 何玉林，黄伟，李成武，等. 大型风力发电机传动链多柔体动力学建模与仿真分析[J]，机械工程学报，2014,50(1):61-69.
HE Yulin, HUANG Wei, LI Chengwu, et al. Flexible Multibody Dynamics Modeling and Simulation Analysis of Large-scale Wind Turbine Drivetrain[J]. Chinese Journal of Mechnical Engineering, 2014, 50(1):61-69.
