風力發(fā)電增速裝置的研究.pdf

1、西安理工大學碩士學位論文風力發(fā)電增速裝置的研究姓名：佘勃強申請學位級別：碩士專業(yè)：機械設計及理論指導教師：崔亞輝20080301Title：RESEARCHOFINCREASINGSPEEDGEARSSYSTEMOFWINDTURBINEGENERATORMajor：MechanicalDesign＆TheoryName：BoqiangSHESupervisor：ProfYahuiCUISignature：Signature：Abstr

2、actWindpowerisacleanrenewableenergywithwidespreadapplicationSpeed—increasegearboxisthekeypartsofthelargewindturbinegeneratoritsworkinglifeislongerandreliabilityhigherthancommonmachinesThestrengthanddynamiccharacteristics

3、ofitsgeartransmissionsystemhasbeenstudiedinthispaperFirstlybasedonthecurrentgearstrengthcalculationmethod，theeffectofthefrictionbetweenteethonthegearstresshasbeenanalyzedandcalculatedTheresultshows：@theeffectonthebending

4、fatiguestressatgearrootunderincreasespeedtransmissionisdifferentwithdeduce。speedtransmissionThedrivengear’bendingstressCanbedecreased，drivinggear’Sbeincreased，especiallythedrivingbiggearinincrease—speedtransmission，bythe

5、flankfrictionalforce②theeffectongearfacecontactfatiguestressunderincrease。speedtransmissionissamewithdeducespeedtransmissionThestressmayincrease1％～1O％，morethan5％whenf≥009Thenthenewgearstrengthcalculationformulashavebeeng

6、ivenandaccordingitonestageplanetarygeartransmissionaddedtwostagefixedaxiscylindricalgeartransmissionhasbeendesignedforspeed—increasegearboxofwindturbineLastlythedynamicmodelofthegeartransmissionsystemhasbeenestablishedby

7、lumped—parametermethod，anditsdifferentialmovementequationhassetupbytheinfluencecoefficientmethod；thenaturalfrequencyandmainvibrationmodeoftheplanetarygearsystemandthewholetransmissionsystemhasbeencalculated，andaccordingi

8、tvibrationmodesofplanetarygearareclassedintotwotypes，torsionmodeandplanetmode，thentheinfluenceoftherotationalinertiasonthewholetransmissionsystem’snaturalfrequencyhasbeenanalyzed；thedynamicresponseexcitedbythetime—varyin