机械工程导论Ch1-The mechniacal Engineering Profession

1IntroductiontoMechanicalEngineeringFirstEditionProf.Zhen-qiangYaoDr.Yong-xiangHuCHAPTER制造技术与装备自动化研究所1Themechanicalengineeringprofession制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-2WhypeoplewanttobeaMechanicalEngineer?PresentinterestInterestedinmachineEasytofindjobThecountryneedengineersWanttoinventLovecarsMyparentswantmetobeNotsure…?2制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-3ContentsWhatisEngineering?MechanicalEngineeringCareerpathsofmechanicalengineeringTypicalprogramofstudyNewdirectioninMECommunicationasaME制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-41.Whatisengineering?Inotherwords,engineeringistheprocessofproducingatechnicalproductorsystemtomeetaspecificneed..Engineeringistheartofapplyingscientificandmathematicalprinciples,experience,judgment,andcommonsensetocreatethingsthatbenefitpeople.1.1Thedefinitionof“Engineering”Latinroot“ingeniere”,designanddeviseingenious3制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-51.2Whatdoengineersdo?Engineersdopracticaldesignandproductionworkusingtheprinciplesofscienceandmathematicstocomeupwitheconomicallyviablesolutionstotechnicalproblems..Inshorterwords,theydesignandbuildneededtools,products,andsystems..Engineers:TurningIdeasintoRealityMilestonestoIdentifytheages:StoneBronzeSteamElectricalElectronic&Informaion…制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-61.3ScientistvsEngineerScientistsareconcernedwithwhatitis.Scientistsfocusondiscoveringtheexistsinnature.Engineersareconcernedwithwhatitwillbe.Engineersfocusoninventingnewfortheworld.TheDifferenceinGoal4制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-71.4TraditionalDisciplinesofEngineeringEngineeringisgenerallybrokendownintofivetraditionalcoredisciplines:CivilEngineeringChemicalEngineeringElectricalEngineeringMaterialEngineeringMechanicalEngineering制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-8RoadsBridgesBuildingsAirportsLargeStructuresWatertreatmentfacilitiesWastemanagementfacilities1.4TraditionalDisciplinesofEngineeringCivilEngineeringCivilEngineersdesignandconstructnationalinfrastructure.Theyplan,design,construct,operateandmaintain:5制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-9PetroleumproductsBuildingmaterialsPlasticsandpolymersNaturalgasBiochemicalproductsFertilizers(化肥)Cosmetics（化妆品）1.4TraditionalDisciplinesofEngineeringChemicalEngineering–Chemicalengineersdeveloplargescaleplantsthatproduceproductsthatareusedineverydaylife.–Theyplan,design,construct,operateandmaintaincomplexsystemsthatproduce制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-10TelevisionComputersInstrumentsAudiodevicesCommunicationdevices:telephone,cellphone,faxBanktellersAllelectricalmachinery1.4TraditionalDisciplinesofEngineeringElectricalEngineeringElectricalengineersareinvolvedinanyelectricaldevices,systemsandenergy.–Theyplan,design,construct,operateandmaintainproductsthatuseelectricity–virtuallyeverything6制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-111.4TraditionalDisciplinesofEngineeringMaterialengineeringMaterialengineersdevelopnewcompositionsofmatterthatareusedinapplicationsencompassingsemiconductors,lasers,steelandaluminumalloys,andmagneticmediaincomputerharddrives.C/C复合材料用于飞机刹车副纳米Ag的消毒杀菌制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-12AutomobilesJetenginesGasturbinesLight/HeavymachineryBicyclesFluids(alsobio-fluid)PowerplantsDiskdrives1.4TraditionalDisciplinesofEngineeringMechanicalengineeringMechanicalengineersdesign,analyze,anddevelop,controlandmaintainmachines,structures,devicesandmechanicalsystems.–Thisisthebroadestdisciplinedealingwithvirtuallyallproducts7制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-131.5Otherengineeringdisciplinesare:Therearealsootherengineeringdisciplines.Theyare:AeronauticalEngineeringNuclearEngineeringMiningandPetroleumEngineeringAgriculturalEngineeringEnvironmentalEngineeringOceanEngineering/NavalArchitectureTelecommunicationEngineeringManufacturingEngineeringBiomedicalEngineeringComputerEngineering制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-141.6JobClassificationAmongEngineersAccordingtowhatkindsofjobtheyundertaken,engineerscanbeclassifiedintofourtypes:DesignEngineerDesignEngineer::•Concept:Anewproductorimprovementsforexistingproductorsystem•Detaileddrawing•Materials•ManufactureResearchEngineer:ResearchEngineer:•Appliedresearchfor–Newproducts–Newdesign–Newprocesses•ToensureproductsatleadingedgeConsultingEngineer:ConsultingEngineer:–Engineeringservicesoncontractbasis,e.g.accidentanalysisEngineeringProfessorEngineeringProfessor–WithPh.D–Teachclasses–Conductresearch–TrainM.S.andPh.D.students–Doservicethroughconsulting,professionalsocietiesandgovernmentalandeducationalboards8制造技术与装备自动化研究所IntroductiontoMechanicalEngineeringFistEditionDr.Y.XHu1-15Civil13%Che