风力发电机轮毂-主轴连接螺栓强度影响因素分析.pdfVIP

机械工程师

MECHANICALENGINEER

风力发电机轮毂-主轴连接螺栓强度影响因素分析

刘泽源，赵春雨，柳胜举，刘东，陈亮

（明阳智慧能源集团股份公司，广东中山528437）

摘要：

基于VDI2230的基本理论，从螺栓刚度、螺栓组参数、夹紧件结构3个方面对轮毂-主轴连接螺栓的极限和疲劳性

能进行研究。采用有限元的计算方法，基于大型计算软件模拟了不同规格、不同节圆、不同边距等不同方案下轮毂主轴连接

螺栓的力学性能。结果表明：对于无缩径螺栓，增大螺栓规格可以改善极限强度但不能改善螺栓疲劳强度。在缩径相同的条

件下，增大螺栓规格可以改善抗疲劳性能。增加螺栓数量及增大节圆直径均可以提升轮毂-主轴连接螺栓的极限强度。夹

紧件结构对螺栓疲劳损伤值影响明显，增大轮毂-主轴连接螺栓的边距可以大幅度改善螺栓的抗疲劳性能。

关键词：

风力发电机；轮毂-主轴连接螺栓；有限元分析；极限强度；疲劳损伤

中图分类号:TM315文献标志码:粤文章编号：员园园圆原圆猿猿猿（圆园25）01原园125原园缘

AnalysisonStrengthInfluencingFactorsoftheConnectingBolts

betweenWindTurbineHubandSpindle

LIUZeyuan,ZHAOChunyu,LIUShengju,LIUDong,CHENLiang

(MingyangSmartEnergyGroupCo.,Ltd.,Zhongshan528437,China)

Abstract:BasedonthebasictheoryofVDI2230,theultimatestrengthandfatigueperformanceofhub-shaftconnection

boltsarestudiedfromthreeaspects:boltstiffness,boltgroupparameters,andclampstructure.Themechanicapropertiesof

boltsunderdifferentspecifications,pitchcircles,edgedistances,andotherworkingconditionsaresimulatedusingthefinite

elementcalculationsoftware.Theresultsindicatethatincreasingtheboltsizecanimproveultimatestrengthbutcannot

improvethefatiguestrengthofcommonbolts.Underthesameconditionsofreducing,increasingtheboltsizecanimprove

fatigueperformance.Increasingthenumberofboltsandpitchdiametercanbothimprovetheultimatestrengthofthehub

spindleconnectionbolts.Theclampingcomponentstructurehasasignificantimpactonthefatiguedamagevalueofbolts,and

increasingtheedgedistanceofthehubshaftconnectionboltcansignificantlyimprovethefatigueperformanceofthebolt.

Keywords:windturbine;hub-shaftconnectionbolts;finite