風(fēng)電機(jī)組變槳軸承載荷與疲勞壽命分析

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中圖分類號：TH133.3 文獻(xiàn)標(biāo)志碼：A 文章編號：2095-2945(2025)14-0091-04

Abstract:Basedontheanalysisoftheloadandfatiguelifeofthepitchbearingofwindturbines,theanalysistheoryof the racewayloadofthepitchbearingisfirstintroducedandamechanicalanalysismodelisconstructed.Thenusingthisodelthe changesintheracewayloadofthepitchbearingwhenthecontactangleischangedandtheclearanceisadjustedareanalyzed, andtherelationshipsbetween thesetwoparameters haveposiveandnegativeefectsontherollingloadofthepitchbearingare summaried.Thenthenominalstressmethodandlocalstressmethodareusedtoanalyzethefatiguelifeofthevariablepitch bearing.Itisfoundthatthefatiguelifeofthebearingislargeunderbothmethods.Itisfoundfromtheanalysisofthefactors affectingbearingfatiguelifethattheracewayhardenedlayerandracewaysufaceroughnessaretwoimportantinfluencingfactors. Increasingtheracewayhardenedlayerandreducingtheracewaysurfaceroughnesswillhelpimprovethefatiguelifeof pitch bearings;therefore,itis hopedthat thisresearch canprovide reference for theoptimal design of pitch bearings.

Keywords:windturbine;variableblade bearing;raceway load;fatiguelife；mechanical analysismodel

在風(fēng)電行業(yè)高速發(fā)展的時代背景下，風(fēng)電軸承的研究逐步深入。（剩余8034字）