大型船用二級(jí)人字齒輪傳動(dòng)有限元分析.pdf

1、武漢理工大學(xué)碩士學(xué)位論文大型船用二級(jí)人字齒輪傳動(dòng)有限元分析姓名：胡社來(lái)申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：載運(yùn)工具運(yùn)用工程指導(dǎo)教師：劉正林李國(guó)棟20050301AbstractWiththedevelopmentofhigh—speed，largescaleandheavy—loadShip，itismoreandmoreimportanttoimprovethebearingcapacityandstabilityofthemarinegeart

2、ransmissionsystemsAtpresent，fewresearchesonthatarecarriedoutinourcountryorothercountriesTherefore，fllrtherinvestigationonship’SgeartransmissionsystemisofvaluetoenhanceitssecurityreliabilityandparameteroptimizationCompare

3、dmcommonge她large—scaleherringbonegearsusedinshippossessalargecoincidentcoefficientandlargedimensionForitscomplicatedcharacteristicofmechanics，itisdifficultforUStoresearchIntheresearch，withlargescalecommercialfiniteelemen

4、tsoftware，finiteelementanalysisofthelargescalegearmodeliScarriedonTheconcreteresearchcontentsareasfollows(1)Thecompositionandoperationprincipleofthelarge—scaleandtwostagegeartransmissionsystemarein仕oducedParameterofgeome

5、tryandinitialloadarecalculated(2)WithPro／Esoftware，thethree—dimensionmodelsoftheherringbonegearareestablishedThen，thepartsareassembledtogethertoformthetransmissionmodelLastlythe3DmodelisexportedtoANSYSsoftwarebyinterface

6、program(3)InANSYSsoftware，thefiniteelementmodelisdevelopedbymeshingthemodelwi吐1solidelementInordertoapplyloadrigidregionaremadebetweentheinnersurfaceofgearandmassnodeatrotatecenterContactpairsaredefinedbetweenmeshteethAs

7、taticanalysisisdevelopedafterloadingandsolvingthemodel(4)MakingdynamicanalysisinANSYS／LS—DYNAsoftware，ananalysisofthestressandstrainchangesindifferentmeshPositionaremadeTheinnersurfacesaredefinedaStworigidbodiesforapplyi

8、ngloadTheresearchinthepapershowsthattheresultoffiniteelementanalysisisrationalLargescaleherringbonegearsoperatestablyInthepositionsofstart—engageandend—engage，alittleaccelerationofstressandstraincomesforthKeyword：Large—s