ptc官方培训_top-down design

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1、Top-DownDesignToolsManagingComplexAssembliesVictorRemmersHollandEngineeringConsultantsBVTips&TechniquesTop-DownDesignPhilosophyTraditionalDesignApproach“Bottom-UpDesign”DesignofindividualcomponentsindependentoftheassemblyManualapproachtoensurethatcomponentsfitprope

2、rlyandmeetthedesigncriteriaComponentsandthoseplacedinsub-assembliesarebroughttogethertodevelopthetop-levelassemblyErrorsaremanuallyidentifiedandmodificationstoeachcomponentaremadetomaketheadjustment.Asassemblygrows,detectingtheseinconsistenciesandcorrectingthemcanc

3、onsumeaconsiderableamountoftimeTopLevelAssemblyComponentDesignComponentDesignComponentDesignPossibleexampleBottomUp?MateTop-DownDesignPhilosophy“Top-DownDesign”Methodofplacingcriticalinformationinahigh-levellocationCommunicatingthatinformationtothelowerlevelsofthep

4、roductstructureCapturingtheoveralldesigninformationinonecentralizedlocationDesignInformationComponentComponentComponentAmoreintegratedapproach….TopDownDesignStages–Itisaconcept.6-StageProcessConceptualEngineeringPhaseLayoutsandEngineeringNotebookPreliminaryProductS

5、tructurePhasePro/INTRALINK,ModelTreeCapturingDesignIntentPhaseSkeletonModelsManageInterdependenciesPhaseReferenceViewer&ReferenceGraphCommunicationofDesignIntentPhaseCopyGeoms,PublishGeoms&ShrinkwrapPopulationoftheAssemblyPhaseAutomaticComponentConstraints&Componen

6、tInterfacesTheBobcatexampleConceptualEngineeringPhaseLayoutsandEngineeringNotebookUnderstandExistingSituationHigh-levelRequirementsSpaceAllocationDefineNewSpaceandMotion2DSketches3DModelsRapidIteration&ConvergenceAnimationsCaptureKeyDesignIntentParametersNotesSprea

7、dsheetsProprietaryDataStage1PreliminaryProductStructurePhasePro/INTRALINK,ModelTreeQuicklydefineproducthierarchyBeforeanyofthecomponents’geometryisdefinedIntuitive,automaticmappingto“startmodels”Templatesensurealldesignssharethenecessarycommonelementssuchaslayers,v

8、iews¶metersFoundationforefficienttaskdistributionAssemblyPopulationEnvironmentsPro/EmenusandModelTreepop-upmenusPro/INTRALINKandPDMLinkCompon