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poweredbyADAMSCAESimulationToolforPowertrainDynamicsFEVVirtualEngineisasoftwareenvironmentdesignedforsupportingtheentirepowertraindevelopmentprocess.
Flexiblemodelrefinementallowstheapplicationinallareasofdevelopmentofstandardandinnovativeconcepts:EngineConceptEvaluationVirtualDesignApprovalTroubleshootingAnalysesofInnovativeSystems…poweredbyADAMSFEVVirtualEngineusesthecoretechnologyoftheworldleadingMulti-Body-SimulationSoftwareADAMS,suchasnumericalintegratorandbasicpre-andpostprocessingfeatures.
TemplatebasedArchitectureToenableontheonehandahighlevelofautomationforstandardcomponentsandsubsystems,whileontheotherhandbeingopenforanyinnovativedesign,FEVVirtualEngine'sarchitectureisbasedontemplates:Topologyanddata/parametersareseparatedintemplatesanddatacontainers–sothatthepurelydata-relatedmodelchangesarequick,easyandsecurewhiletopology-relatedmodelchangesarepossibleonanexpertlevel.
Sotheadvantagesofsinglepurposesoftware(easeofuse)andmultipurposesoftware(nolimitationsinextendability)areperfectlycombined.
Modularity–UnderoneroofTheVirtualEnginesoftwaremodulesrepresentenginesubsystems.
Thisapproachprovides"softlimits"tohelpbuildingmodularandconsistentmodels.
Themoduleswereonpurposeneverdesignedtobestand-aloneproducts,workingwithseparatesolvers.
CombinedmodelsaretranslatedtoasinglesetofequationsfortheADAMSSolver–auniquesolutioninsteadofexpensiveanddifficulttohandleco-simulationtechniques.
ThisleadstoVirtualEngine'ssignificantadvantagesregardingsolutionrobustnessandsimulationperformance:Savingtimeisoneofthemostimportantaspectsintoday'sdemandingdevelopmentprocesses.
MadebyEngineDevelopersSinceFEVVirtualEngineisaplugintoADAMS,notastandalonesoftwarecode,thedevelopmentfocusesmuchmoreonenginedevelopmentrelatedaspectsthanonnumericalorothercoresoftwaredevelopmentissues.
TheVirtualEnginedevelopmentteamconsists100%ofengineersexperiencedinpowertrainCAEengineering:theirviewontheproductisclosetotheuser'sone.
BasicCranktrainModuleOpenparametricsallowsanybank-cylindercombination.
EvenunconventionalconceptssuchasVR-orW-enginesarecoveredwithoutsignificantmodelingeffort.
WithBasicCranktraintypicallyconceptualengineanalysesfordefiningmainenginedimensionsaremade:FreeLoadAnalysis:oCounterweightlayoutoBalancershaftlayoutTorsionalVibrationAnalysisoBasedesignconfirmationoVibrationdamperlayoutoFlywheellayoutBeamCrankshaftAnalysisoBearingloadevaluationoCrankshaftbasedesignconfirmationoFiringorderoptimizationAdvancedCranktrainModuleAutomatedFlexibleBodyintegrationprovidesasimplepushbuttonsolutiontoreplace(parameteric)rigidenginecomponentswithmodalcondensedFEAstructures.
TypicalapplicationsforAdvancedCranktrainare:AdvancedDurabilityAnalysisandVirtualDesignApprovalforhighlyloadedcranktraincomponentsDetailedBearingAnalysis,includinghighlyresolvedpressuredistributionandcomponentelasticityNVHExcitationAnalysisandOptimizationValvetrainModuleHavingasignificantinfluenceontheengine'sgasexchangebehaviourandalsohavingalargeimpactonperformanceandfuelconsumptionthevalvetrainisalwaysinthefocusofanynewenginedevelopmentorengineupgradeproject.
Highestpre-calculationfidelityisnecessarywhenpredictinge.
g.
dynamicvalveliftbehaviour.
Afterakinematiclayoutofthecamcontour,dynamicvalvetrainanalysesareusuallyappliedtoidentifyessentialparameterssuchas:MaximumpossibleenginespeedMaximumvalveseatingvelocitiesDynamicvalvespringbehaviorFrictionandwearbehaviorTimingandAccessoryDriveModulesIncreasingspecificenginepowerwhilereducinginertiaofmovingcomponentsleadstosignificantlyhighercrankshaftspeedfluctuations,especiallyincombinationwithdualmassflywheels.
Highlyefficientinjectionpumpsandoptimizedvalvetrainsadditionallysharpentheexcitationofalldrivesystems.
Timingoraccessorydriveanalysesareusuallyappliedtoensuretheirownsubsystemdurabilityandcapturetheriskofsignificantancousticexcitations.
Typicaloptimizationparametersare:DriveLayoutTensionerSystemGuidesorDeviationPulleysDetailedTimingOptimization(e.
g.
injectionpump)BecauseofVirtualEngine'sopenandbroadmodelingcapabilitiesmanyofthecurrentbeltdrivenstart/stop-systemsareinvestigatedandoptimizedwithit.
BenefitFEVVirtualEngineismadetofollowFEV'svision:"Supportingthepresent,developingthefuture"Contact:Dr.
-Ing.
MartinRebbertDipl.
-Ing.
MichaelHeinenFEVMotorentechnikGmbHNeuenhofstrae18152078Aachen,GermanyPhone:+49(0)241/5689-506I-Fax:+49(0)241/5689-7-506E-Mail:rebbert@fev.
de,heinen@fev.
deInternet:http://www.
fev.
comVersion:2009.
05.
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