2.5MW风电齿轮箱轴承疲劳寿命研究  

Fatigue Life Study of 2.5 MW Wind Turbine Gearbox Bearing

作　　者：汪东恒 陈文华[1] 杨帆[1] 贺青川[1] 潘骏[1] 潘晓东[2] WANG Dongheng;CHEN Wenhua;YANG Fan;HE Qingchuan;PAN Jun;PAN Xiaodong(Key Laboratory of Reliability Technology for Mechanical and Electrical Product of Zhejiang Province,Zhejiang Sci-Tech University,Hangzhou 310018,China;Hangzhou Advance Gearbox Group Co.,Ltd.,Hangzhou 311203,China)

机构地区：[1]浙江理工大学浙江省机电产品可靠性技术研究重点实验室,杭州310018 [2]杭州前进齿轮箱集团股份有限公司,杭州311203

出　　处：《机械工程师》2018年第4期28-31,共4页Mechanical Engineer

基　　金：国家国际科技合作专项项目资助(2015DFA71400);浙江省重点科技创新团队项目(2010R50005)

摘　　要：以2.5 MW风电齿轮箱高速轴轴承为研究对象,对变载荷条件下的轴承疲劳寿命进行了预测。首先对风场实测的齿轮箱输入端离散载荷谱做进一步统计分析处理,得到了更精确的连续载荷谱;其次运用修正的Miner疲劳累积损伤理论建立了风电齿轮箱轴承的疲劳寿命计算模型;最后在对齿轮箱进行受力分析的基础上,结合蒙特卡洛抽样法对高速轴轴承疲劳寿命作了分析计算。Taking the 2.5 MW wind turbine gearbox as the research object,the bearing fatigue life under variable load is predicted.Firstly,the discrete load spectrum of wind turbine gearbox input shaft is analyzed and processed,and a more accurate continuous load spectrum is obtained.Secondly,the fatigue life calculation model of wind turbine gearbox bearing is established by using the modified Miner fatigue cumulative damage theory.Based on the force analysis of the gearbox,the fatigue life of high-speed shaft bearing is analyzed and calculated by Monte Carlo sampling method.

关 键 词：风电齿轮箱 高速轴轴承 载荷谱 疲劳寿命计算 

分 类 号：TH133.3[机械工程—机械制造及自动化]