随机风载下风力机行星齿轮系统随机振动分析  

RANDOM VIBRATION ANALYSIS OF PLANETARY GEAR SYSTEM OF WIND TURBINE WITH RANDOM WIND LOADS

作　　者：陈会涛[1] 吴晓铃[2] 秦大同[1] 杨军[1] 周志刚[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]郑州大学机械工程学院,郑州450007

出　　处：《太阳能学报》2013年第10期1702-1707,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(50975294)

摘　　要：为研究随机风载下风力发电机行星齿轮系统的动力学行为,考虑齿轮时变啮合刚度、齿侧间隙和综合传递误差等因素,建立风力发电机行星齿轮系统纯扭转非线性动力学模型。以随机风速引起的齿轮传动系统随机转矩波动作为行星齿轮系统的外部激励,对某1.5MW风力发电机行星齿轮系统的动力学特性进行数值仿真。通过对仿真结果的统计分析,得到行星齿轮系统各响应量时域内的统计特征和齿轮副间动态啮合力的均值响应,为风力发电机齿轮传动系统的可靠性分析和动态优化提供理论依据。Considering the time-varying mesh stiffness, backlash and transmission error, a nonlinear dynamic model of planetary gear transmission system of wind turbine was developed to study the dynamic behavior of the planetary gear system with random wind loads. Numerical method was used to simulate the dynamic characteristics of planetary gear system of 1.5 MW wind turbine with the consideration of the torque fluctuation of gear transmission system caused by random wind speed. The statistical characteristics of responses of the planetary gear system and mean dynamic engaging force of gear pairs were obtained. The research results lay a foundation for reliability analysis and design of gear transmission system and optimizing dynamic performance of wind turbine.

关 键 词：风力机 行星齿轮 风载 随机振动 

分 类 号：TH13[机械工程—机械制造及自动化]