畢業(yè)設(shè)計論文 4125a 型柴油機曲軸結(jié)構(gòu)有限元模態(tài)分析

1、畢業(yè)設(shè)計(論文)課題名稱4125A型柴油機曲軸結(jié)構(gòu)有限元模態(tài)分析學(xué)生姓名黃奇林學(xué)號1141103044系、年級專業(yè)機械與能源工程系指導(dǎo)教師胡瑋軍教師職稱副教授2015年5月30日邵陽學(xué)院畢業(yè)設(shè)計（論文）IIABSTRACTCrankshaftisoneofthemaincomponentsoftheenginetheimptantengineofthestresscomponentsthesizeparametersdetermines

2、engineoverallstructureperfmanceganizationsizeenginelifereliability.Crankshaftwkingenvironmentdecidedtoentertainthecrankshaftcomplexthecrankshaftmustnotonlypressureinertiafcebutalsobythemomentbecausethecrankshaftacceptmec

3、omplexsointhedesignofthecrankshaftrequirementsarerelativelyhighindertoavoidshowingoffthecrankshaftatwkwhenresonanceoccursresultinginfailureofthecrankshafttothemodalanalysisofthecrankshaftsothatwecanfindtheresonancefreque

4、ncyofthecrankshaftcrankshaftatwkthemodeofvibrationloadvariationwhichinthedesigncanavoidresonanceofcrankshaftdamagewhichtoimprovetheservicelifethereliabilityofthecrankshaftisveryeffective.Thepaperisonthestudyof4125Adiesel

5、enginecrankshaftfiniteelementanalysis.ThroughthefiniteelementanalysissoftwareANSYSinthisregarddieselenginecrankshaftmodelingstaticanalysismodalanalysisthenwecanknowthewkloadofcrankshaftdangerouswksectioncrankshaftofreson

6、ancefrequencyvibrationmode.ThustheactualwkingconditionofcrankshaftcanbeinfthecrankshaftdesignreasonablearrangementofthecrankshaftstructuresizetoimprovethecrankshaftdesignwkingreliabilityAtdesigntimetakevariousmeasurestoi

7、mprovethestrengthofcrankshaftresonanceintervaltoavoidthedangeroussectionofthecrankshaft，reducethedevelopmentcycle，Soastoimprovethedesignqualityofthecrankshaftofthedieselengine.(1)TheuseofANSYS14.0tobuildthreedimensionalm

8、odelofthecrankshafttheparameterdeterminationunitgridtype.(2)firstinANSYSdeterminethemeshingaccuracymeshdensitythencarriesonthegriddivisionofthethreedimensionalsolidmodelestablishedtherestrictedmodeldegreesoffreedomtheflo