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AC20072502AHOLISTICREVIEWOFMECHANICALDESIGNCURRICULUMINANENGINEERINGTECHNOLOGYPROGRAMJyhwenWang,TexasAMUniversityJyhwenWangjoinedtheDepartmentofEngineeringTechnologyandIndustrialDistributionatTexasAMUniversityin2001afterworking10yearsasaresearcherandRDmanagerinsteelindustry.Heteachesmechanicaldesignapplicationsandhisresearchinterestisintheareasofmechanicaldesignandmaterialprocessingtechnology.HereceivedhisPh.D.degreeinmechanicalengineeringfromNorthwesternUniversity.RichardHarris,SandiaNationalLaboratoriesRickHarrisisManagerofMechanicalDesignwithintheWeaponsEngineeringdivisionofSandiaNationalLaboratoriesinAlbuquerque,NewMexico.Rickhastwentytwoyearsofexperienceinengineeringdesign,build,test,modelingandsimulation,aswellassoftwaredevelopment.Heisexperiencedinorganizationalleadership,projectandprogrammanagement,andinformationsystemsdevelopment.Rickhasaspecialinterestindevelopingorganizationstoalignwiththeneedsofthebusinessinvigoratedwithprofessionaldevelopmentofthestaff.RickhasaMatersdegreeinmechanicalengineeringfromtheUniversityofMichigan.©AmericanSocietyforEngineeringEducation,2007AHolisticReviewofMechanicalDesignCurriculuminAnEngineeringTechnologyProgramAbstractInmostofthemechanicalandmanufacturingengineeringtechnologyprograms,mechanicaldesignisacriticalcourseforstudentstoacquiretheknowledgeandskillindesignofmechanicalcomponentsandsystems.Whilethecoursecontentsgenerallyincludeimportanttopics,suchasfailuretheoriesandmachineelements,aholisticmechanicaldesigneducationshouldalsoaddresstheinterdependencybetweenvarioussubjectsrelatedtomechanicaldesign.Thesubjectofmechanicaldesignshouldbeviewedasanintegratedcurriculum,notanisolatedcourse.AsaresultofaprofessionaldevelopmentprojectwiththeSandiaNationalLaboratoriesSNL,theManufacturingandMechanicalEngineeringTechnologyMMETprogramatTexasAMUniversityTAMUhasembarkedonacriticalreviewofitsmechanicaldesigncurriculum.ThispaperpresentsthecollaborationbetweenTAMUandSNLontheeducationdevelopmentproject,theongoingcurriculumreviewofmechanicaldesigncourses,andtheinitialfindingsandrecommendationsfortheMMETprogramatTAMU.Themethodologyinthisstudycanbeusedasacontinuousimprovementprocessforengineeringtechnologyeducation.1.IntroductionThetypicalmechanicalengineeringtechnologycurriculumconsistsofamechanicaldesigncourseorsequence.Takenduringthejuniorand/orsenioryears,thesecoursescarrytitlessuchasMechanicalDesign,MachineDesign,MachineElementDesign,andMechanicalSystemDesign.Inthiscontext,designmeanstocreateacomponentorasystemtomeetthedesiredfunctionalrequirements.Thus,theobjectiveofthecourseistoprovidetheconcepts,methodologies,knowledge,analyticalskills,anddecisionmakingtechniquesnecessarytodesignmechanicalpartscomponents,devices,andsystems.Buildinguponthestudentsknowledgeofstatics,dynamics,andstrengthofmaterials,thecourseFundamentalsofMechanicalDesignoftenfocusesonthetopicsofdesignmethodology,stressanalysis,failuretheories,andmaterialselections.Thecourseinmachinedesignintroducesthetheoriesandapplicationofmachineelementssuchasgears,bearing,springs,fasteners.Realworlddesignrequiresdesignerstohaveabroadknowledgebaseandskillset.Adesignerhastobeabletovisualizethespatialrelationshipofcomponents,tousecomputeraideddesignCADtoolstocommunicatedesignconcepts,tospecifydimensionsandtolerances,andtoidentifyappropriateprocessesforpartmanufacturing.Inaddition,mechanicaldesignersareoftenexpectedtoconductstressanalysisandselectionmaterials,toestimatecosts,tomanagemultipleprojects,andtoworkeffectivelyonateam.Intheacademicworld,aclusterofknowledgeisgroupedintocoursesforefficientlearningofthesesubjects1.Itisclearthatthetaskofmechanicaldesigncanonlybeaccomplishedwiththeknowledgeandskillacquiredfromvariouscourses.Thus,acapstonedesigncourseiscommonlyinplaceforstudentstoacquireintegratingexperience.Effortshavebeenmadetodevelopdifferentapproachestothecapstonecourse,andtheformatandtheimplementationofthecoursevaryfrominstitutiontoinstitution28.Whilethecapstonecoursecanbetterpreparestudentstoentertheworkforce,theeffortseemstoolittletoolate.Otherthantheprerequisitesspecifiedforrelevantcourses,aholisticmechanicaldesigneducationshouldaddresstheinterdependenciesbetweenvarioussubjectsrelatedtomechanicaldesign.Inthispaper,wefirstdescribetheexistingmechanicaldesigncurriculumintheManufacturingandMechanicalEngineeringTechnologyMMETprogramintheDepartmentofEngineeringTechnologyandIndustrialDistributionatTexasAMUniversityTAMU.Comparingtheneedsoftheindustrywiththeexistingcurriculumservesasacontinuousimprovementprocess.BasedonacollaborativeprofessionaldevelopmentprojectwiththeSandiaNationalLaboratoriesSNLandasurveyoftheMMETprogramconstituencies,weidentifythemechanicaldesignknowledgeandskillstudentsareexpectedtoacquirebeforegraduationSection3.Toimprovemechanicaldesigneducation,therecommendedintegrativemechanismandcurriculumchangesarediscussedinSection4.AbriefconclusionisincludedinSection5.2.CoursesinMechanicalDesignCurriculumTheminimumtotalcredithoursrequiredforstudentsintheABETaccreditedMMETprogramatTAMUis132.Excludingthecoursesincommunications,mathematics,physicalandnaturalsciences,andsocialsciencesandhumanities,thetechnicalcontenthas77credits.Thedisciplinespecificcomponentsoftheprogram,amongotheraddeddepthtechnicalareas,includeMechanicalDesign.ThecoursesinthemechanicaldesignsequencearedescribedasfollowingsENGR111A–FoundationsofEngineeringIMechanicsTrack.Introductiontotheengineeringprofession,ethics,anddisciplinesdevelopmentofskillsinteamwork,problemsolvinganddesignmajoremphasisoncomputerapplicationsandprogrammingvisualizationandCADtools.ENGR112A–FoundationsofEngineeringIIMechanicsTrack.ContinuationofENGR111.TopicsincludemajoremphasisoncomputerapplicationsandprogrammingandsolidmodelingusingCAD.PHYS218–Mechanics.Mechanicsforstudentsinscienceandengineering.Fundamentalprinciplesofclassicalmechanicsincludingkinematics,NewtonsLaws,conservationofenergyandmomentum,oscillationsandwavemotion.ENTC275–MechanicsforTechnologists.Forces,momentsandcouplesin2Dand3Dsystems,equilibriumofrigidbodiesfrictionandapplicationcentroidsandmomentofinertiareviewofparticledynamicprincipleskinematicsandkineticsofrigidbodiesprinciplesofimpulsemomentumandworkenergycomputeruseinselectedareas.ENTC376–StrengthofMaterials.Stressandstrainelasticmoduli,Poissonsratio,torsion,bending,unsymmetricalbending,designofbeamsandshaftsdeflectionofbeamsbucklingofcolumnsmaterialsandstrengthcharacterizationlaboratorytests.ENTC361–SolidModelingandAnalysis.Fundamentalsofpartgeometrydevelopmentandmechanicalassemblysimplefiniteelementanalysisusedtoevaluateandoptimizedesign,rapidprototypingofsimpleproductmodels.ENTC363–MechanicalDesignApplicationsI.PrinciplesofdesignofmechanicalcomponentstheoriesoffailurefatigueandfracturedesigncriteriaSoderbergandGoodmandiagramsmaterialsandtheirselectionstoengineeringapplicationtoleranceandfit,designformanufacturingandassembly.ENTC463–MechanicalDesignApplicationsII.Applicationofprinciplesofdesigntomechanicalpowertransmissionelementssuchasshafts,gears,rollingchains,belts,bearings,clutchesandbrakesdesignofpowertransmissionsystems.ENTC422–ManufacturingandMechanicalEngineeringTechnologyProjects.Acapstoneprojectscourseutilizingateamapproachtoananalysisandsolutionsofmanufacturingandmechanicalproblems.Figure1showsthecoursesequence.Theprerequisitesareshownaslinkswitharrows.OthercoursesthatarenotlistedinthesequencebuthavesignificantimpactinmechanicaldesignincludeENTC181ManufacturingandAssemblyProcessesI,ENTC206NonmetallicMaterials,ENTC207MetallicMaterials,ENTC303FluidMechanicsandPower,ENTC370ThermodynamicsforTechnologists.Figure1Coursesinmechanicaldesigntechnicalarea3.TheDesiredAttributesofMechanicalDesignersProductqualityandcompanycompetitivenessaregreatlyinfluencedbythedesignprocessandthecapabilityofthedesignstaff.Whileitisgenerallyacceptedthatgoodprocessesarevitaltopredictableandsustainablehighperformance,personalcapabilityandprofessionalskillcannotbedismissed.Intheindustrialsetting,attractingandretainingskillfuldesignengineerscontinuestobeacriticalsuccessfactorforcompanies.Twoquestionremain,WhatmakesagreatdesignerWhatdifferentiatesthemfromothersInthelasttwoyears,SandianNationalLaboratoriesandTexasAMhaveworkedtogethertoincreasetheknowledgeandcapabilitiesofdesignengineersanddesigner/draftersatSandia.Theprofessionaldevelopmentprogramconsistsoflectures,reviewsessions,andseminarsinvarious
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