基于动力学的风电增速箱多级齿轮传动系统可靠性评估

中国机械工程 ›› 2014, Vol. 25 ›› Issue (9): 1219-1224.

基于动力学的风电增速箱多级齿轮传动系统可靠性评估

徐芳1;周志刚1;李迎春1;秦大同2

1.河南科技大学,洛阳,471003
2.重庆大学机械传动国家重点实验室,重庆,400044

出版日期:2014-05-10 发布日期:2014-05-15
基金资助:
国家自然科学基金资助项目（51305126）；河南省教育厅科学技术研究重点项目（13A460274）

Reliability Assessment of Multi-stage Gears Transmission System of Wind Power Growth Gearbox Based on Dynamics

Xu Fang1;Zhou Zhigang1;Li Yingchun1;Qin Datong2

1.Henan University of Science ＆ Technology,Luoyang,Henan,471003
2.State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing,400044

Online:2014-05-10 Published:2014-05-15
Supported by:
National Natural Science Foundation of China（No. 51305126）;Hunan Provincial Science and Technology Research Program of Ministry of Education of China（No. 13A460274）

摘要/Abstract

摘要：

针对风力发电机齿轮传动系统在变风速工况下失效率高的问题,在模拟真实风速的基础上,建立了考虑外部随机风载及内部轮齿时变啮合刚度、轴承时变刚度、综合传递误差等激励因素的风力发电机齿轮传动系统齿轮-轴承耦合动力学模型,通过对动力学模型进行仿真计算,得到了各齿轮副的动态啮合力和各支承轴承的动态接触力,并求得齿轮的使用系数、齿轮和轴承的载荷系数。在此基础上,建立了基于动力学的风电齿轮传动系统可靠性评估模型,并求得了各零件及传动系统的可靠度,较全面地评价了随机风载作用下风力发电机齿轮传动系统的可靠性,为风力发电机齿轮传动系统可靠性设计和动态优化奠定了基础。

关键词: 风力发电机, 齿轮传动系统, 动力学, 可靠性评估

Abstract:

Aiming at high failure rate problem of wind turbine gear transmission system in the varying wind speed conditions, a dynamics model of gear transmission system coupled with bearing of wind turbine was established on the basis of simulating real wind speed, and the external random wind load and internal excitations such as time-varying mesh stiffness of gear pair, time-varying stiffness of rolling bearing and integrated transmission errors were considered in the model. Numerical method was used to simulate the dynamics model, the dynamic meshing forces of each gear pair as well as dynamic bearing forces of each bearing were obtained, the utility coefficient of gear, the dynamic load coefficients of gears and bearing were calculated. Then, a reliability assessment model of wind turbine gear transmission system was established, the reliabilities of each part and the whole transmission system were obtained, and the reliability of wind turbine gear transmission system under random wind was comprehensively evaluated. The research results lay a foundation for reliability design and dynamic optimization of gear transmission system of wind turbines.

Key words: wind turbine, gear transmission system, dynamics, reliability assessment

中图分类号:

徐芳, 周志刚, 李迎春, 秦大同. 基于动力学的风电增速箱多级齿轮传动系统可靠性评估[J]. 中国机械工程, 2014, 25(9): 1219-1224.

Xu Fang, Zhou Zhigang, Li Yingchun, Qin Datong. Reliability Assessment of Multi-stage Gears Transmission System of Wind Power Growth Gearbox Based on Dynamics[J]. China Mechanical Engineering, 2014, 25(9): 1219-1224.

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