中国机械工程Issue(9)：1219-1224,6.DOI:10.3969/j.issn.1004-132X.2014.09.016
基于动力学的风电增速箱多级齿轮传动系统可靠性评估
Reliability Assessment of Multi-stage Gears Transmission System of Wind Power Growth Gearbox Based on Dynamics
摘要
Abstract
Aiming at high failure rate problem of wind turbine gear transmission system in the va-rying 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 dy-namic 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 dy-namic optimization of gear transmission system of wind turbines.关键词
风力发电机/齿轮传动系统/动力学/可靠性评估Key words
wind turbine/gear transmission system/dynamics/reliability assessment分类
机械制造引用本文复制引用
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,(9):1219-1224,6.基金项目
国家自然科学基金资助项目(51305126) （51305126）
河南省教育厅科学技术研究重点项目(13A460274) （13A460274）
