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ID:31981668
大小:19.15 MB
页数:81页
时间:2019-01-30
《基于双向流固耦合的200升水箱结构优化》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、ABSTRACTABSTRACTABSTRACT:UnderslungwatertankcarriedbyEMUisanessentialpartanditCanguaranteethesupplyofdrinkingwateranddomesticwaterforpassengers.Therefore,it’Sextremelynecessaryandsignificanttoinsurethesafetyandreasonablesnuchlreofwatertank.W油thehighlyincreasespeed
2、ofEMU,theproblemofliquidsloshingbecomesmoreprominentduringtheacceleration,decelerationandbrakingofthetrain.Inordertoreducetheweightofthetankanddistributethetankstressreasonably,it’Smoreandmorenecessarytooptimizethesnuctureofthebaffleapertureandthetankthickness.Int
3、hispaper,takethe200LwatertankcardedbytheelectricmultipleunitsastheresearchobjectandstudythetankunderthestaticandacceleratingworkconditionbasedontheTwo—wayFSImethod.Andcompletetheoptimizationofwatertankbyusingtheoptimizationsoftware.Themainworkshavebeenfinishedasbe
4、low:(1)Establishthegeometricmodel.UsetheSolidWorkstobuildthetankstructureand3dmodelofthefluid.(2)Establishthefiniteelementmodel.UsetheHypermeshandICEMCFDsoftwaretomeshthestructureofsolidandfluidrespectively.(3)Setthesolidboundary.Setconstraintconditions,analysisty
5、peandboundaryconditionsofthesoliddomain,andthetwo-waycouplingoffluid—solidinteractioninHypermeshandANSYS.(4)Thedeformationofthegrid.SetthecontrolfieldofsolidandfluidgridrespectivelyintheSculptor,andcontrolthedeformationofsolidandfluidmeshbyusingcontrolpoints.Andre
6、alizetheautomaticallydeformationofgridbywritingfiles.(5)Setthefluidboundaryandtwo-wayfluid—solidinteraction.Setthefluidboundaryconditionsandtwo-wayfluid—solidinteractionplatforminCFXsoftware.(6)AnalysisthestaticstrengthofwatertankByusingANSYS,andanalysisthewaterta
7、nkundertheimpactloadconditionbasedontwo·-wayfluid--solidcouplingbyusingCFXandANSYS.(7)Analysistheoptimizationofthewatertankstructure.Accordingtothedesignvariables,constraints,objectivefunctionsandthemulti—objectiveoptimizationalgorithm,finishtheopfimizationofwater
8、tankbasedontwo-wayfluid—solidinteraction.Andthentheoptimalsolutionandtheoptimaldesignparametersareobtained.Theoptimizationreduces11.2%weightofwaterdurin
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