基于动力学的风力发电齿轮传动系统可靠性评估  

Reliability Evaluation of the Gear Transmission System for the Wind-driven Generator Based on Dynamic

作　　者：秦大同[1] 邢子坤[1] 王建宏[1] 刘建国 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030 [2]南京高速齿轮制造有限公司,江苏南京210000

出　　处：《重庆大学学报（自然科学版）》2007年第12期1-6,共6页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50675231);国家支撑计划资助项目(2006BAF01B07-01)

摘　　要：建立了1.5 MW风力发电齿轮传动系统非线性动力学微分方程,分析了由时变啮合刚度与综合误差引起的内部激励和由风速变化引起的外部激励,给出了使用系数、动载系数和轴承载荷系数的表达式,在此基础上,研究了齿轮传动系统的可靠性评估问题,对齿轮、滚动轴承和传动系统分别进行可靠性评估,最后给出了实例计算结果。The differential equation which governs the behavior of the gear transmission system of 1.7 MW wind-driven generator is established, the internal excitation due to time-varying mesh stiffness and comprehensive error are discussed in detail, the external excitation caused by wind speed changes is also analyzed. Based on previous models, the expression of bearing load coefficient , dynamic load coefficient and the usage coefficient are obtained. Then the reliabilities for gears and roiling bearing as well as the transmission system are evaluated respectively. The calculation results of an example are provided.

关 键 词：齿轮传动 风力发电机 动载荷 可靠性 

分 类 号：TH132[机械工程—机械制造及自动化]