基于车轮收放的高速水陆两栖车虚拟样机研究

南京航空航天大学硕士学位论文基于车轮收放的高速水陆两栖车虚拟样机研究姓名：崔金一申请学位级别：硕士专业：车辆工程指导教师：阮米庆2011-03ICATIAGambitFluentVOFε−kADAMS/CarVOFADAMSIIABSTRACTHigh-speedisanimportanttacticalperformanceindicatorforamphibiousvehicles,andisalsoasignificantresearchdirection.Toraisethespeedofouramphibiousvehicles,water-jetselection,arrangementandbodydesignworksarecompletedinthisarticle,basedonexistingmodels;somerelatedresearchesonwaterborneandoverlanddoubleperformancearedoneforthere-constructingvehiclebyusingvirtualprototypingtechnology.Comprehensivelyconsideredthematchofthepropellerandtheenginepower,size,etc.andbasedontheprincipleofthethrustanddragforcesbalanceprinciple,areasonablewaterjetpropulsionisselected.Simultaneously,thesailingspeedisdetermined,whichprovidedabasisforthenextfluiddynamicsanalysis.Inaddition,theamphibiouscar’swaterborneandoverlanddouble-drivenlinesaredefined,andthewaterbornedrivenlinearrangementiscompleted.Inbodydesignprocess,thewholevehicleisdividedintothreeparts-head,middleandrear.Referenceonhighspeedamphibiousvehiclebodyfeaturesandhighspeedcraftdynamicstheories,thethreepartsaredesigned,respectively,inCATIAshape-designmodule.Stillafreshstyleofwashplateisdesigned.InGambit,hybridgridtechnologyandthedimensionscontrolfunctionareused,inordertogainreasonablegridfortwoamphibiousvehicleanalysismodels:onewithwashplateandtheotherwithout.InFluent,VOFmethod,ε−kstandardturbulencemodel,openchannelflowandgeometricreconstructionareappliedtogetcomparativeanalysisofthetwomodelswaterborneperformance.Theresultsshowthatthemodelwithwashplatehasthebetterwaterborneperformance.Accordingtothecharacteristicsofthewheels’retractingandparameters,theADAMS/Carsoftwareisusedtobuildthevehiclefrontandrearsuspensionsubsystems,steeringsubsystem,bodysubsystem,thetiressubsystemandthewholevehiclemodel.Basedonnationalvehicleteststandards,controllabilityandstabilityvirtualsimulationtest-steeringstep,steady-stateofrotary,snakeandsteeringefforts,aredoneinADAMS/Car.Theanalysisresultsillustratethatthevehicle’scontrollabilityandstabilityisgood.Keywords:AmphibiousVehicle,HighSpeed,VirtualPrototyping,WaterbornePerformance,VOF,ControllabilityandStability,ADAMSV1.1Humdinga.............................................................................................................21.2ACC-EACC-RTerraquad.........................31.3...............................................................................................41.4...................................................................................................................52.1.......................................................................................................................92.2.............................................................................................................102.3.........................................................................................................................112.4.............................................................................................................132.5UltraJet251..........................................................................142.6.............................................................................................................152.7.....................................................................................152.8GIBBS............................................................................163.1.........................................................................................................................183.2............................................................................................................................183.3............................................................................................................................183.4............................................................................................................................193.5.....................................................................................................203.6.....................................................................................................................213.7.............................................................................................................213.8mm..................................................................................................223.9CATIAmm..........................................................233.10...................................................................................................................233.11.............................................................................................................243.12.....................................................................................................................243.13.............................................................................................................273.14.....................................................................................................................