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外文翻译--机械系统设计.doc

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外文翻译--机械系统设计.doc

INTRODUCTIONTherapiddevelopmentofscienceandtechnology,productfeaturesrequirementsofthegrowingnumberandcomplexityoftheincreaseinlifeexpectancyshortened,replacementfaster.However,thedesignoftheproducts,especiallymechanicalproductsinthedesignmeans,isunable,failedtokeeppacewiththeneedsofthetimes.Atpresent,computeraidedproductdesigndrawings,design,manufacturing,productionplanninghasbeenarelativelyextensiveandindepthstudyandachievedinitialresults,andproductdevelopmentprogrammesoftheearlycomputeraideddesignisfarfrommeetinganeed.Tothisend,theauthorreadalotofliteratureonthebasisofasummaryofthedesignandscholarsathomeandabroadtodesignthemethodused,anddiscussedthevariousmethodsoforganiclinkbetweenproductdesignandmechanicalComputertrendofdevelopment.Underthecurrentdomesticandforeignscholarstodesignmachinerydesignmethodsusedbythemainfeaturesoftheprogrammecanbesummedupmoderndesignforthefollowingfourmajortypes.1,systematicdesignmethodSystematicdesignofthemainfeaturesaredesignasfromanumberofdesignelementsofasystem,everydesignelementofindependence,therearevariouselementsoftheorganiclinksandalevelofallthedesignelementsCombined,youcandesignsystemstoachievethetask.Systematicdesignideainthe1970sbytheGermanscholarProfessorPahlandBeitz,asystembasedonthetheory,developedadesignofthegeneralpattern,andadvocateofthedesignworkshouldberational.GermanEngineersAssociationinthisonthebasisofdesign,developstandardsVDI2221technologysystemsandproductdevelopmentdesignmethods.Thedevelopmentoftheproductdesignprocessofmechanicalmodel,basicallyfollowtheGermanstandardsVDI2221thedesign.Inaddition,manyofourproductdesignandscholarsintheprogrammedesignandalsolearnfromotherdevelopedcountriescitedthesystematicdesign,whichisrepresentative1Theuserneedsastheproductconceptoffunctionalcharacteristics,structuraldesignandpartdesign,processplanning,operationscontrol,andsoonthebasisoftheproductdevelopmentprocessofthemacro,theuseofQualityFunctionlayoutmethods,systemsandinformationneedsofuserswillbereasonableandeffectiveAndconvertedtothevariousstagesofproductdevelopmentobjectivesandoperationscontroltechnologymeansapointoforder.2productsasorganismsontheleveloflife,andlifesystemsthroughtheuseoftheproductdesignprocesscandemandlevelofsuccessandrealizetheconceptoffunctionalrequirementsofthespecificlevelsandproductdesignlevel.Atthesametimeusingthesystemiconstolifetheabstractexpressionofthefunctionalrequirementsofproducts,productfeaturesasystemstructure.3themechanicaldesignsystemintheapplicationofscienceintotwobasicquestionsFirst,todesignproductsasasystemtoprocess,todeterminethebestofitscomponentsmodulesandtheirmutualrelationsandtheotheristheproductdesignProcessasasystem,accordingtothedesignobjectives,correctandreasonabletodeterminethedesignofallaspectsoftheworkandthevariousdesignstage.Aseachdesignertostudyissuesandtoconsidertheperspectiveofthedifferentemphases,todesignaprogrammeofspecificresearchmethodsalsodiffer.Herearesomerepresentativeofthesystematicdesignmethods.1.1designelementsofWithfivedesignelementsfunctions,effects,effectsofvector,shapeandsurfaceelementsparametersdescribedproductsolutionthataproductdesignelementsofthefiveidentified,allthecharacteristicsofproductsandvaluecharacteristicsalreadyidentified.Chinesescholarshavealsoadoptedsimilardesignmethodsdescribedproductoftheoriginalunderstanding.1.2graphicalmodelinglawDevelopmentofthedesignanalysisandguidancesystemsKALEIT,withaclearlevelofthegraphicdescriptionoftheproductstructureandfunctionsrelatedtotheabstractinformation,andthesystemstructureandfunctionofthegraphicalmodeling,andthefunctionoftheconnectionbetween.Willbeassisteddesigndividedintotwomethodsandinformationexchange,theuseofNijsseninformationanalysismethodscanbeusedgraphicsymbols,withavarietyofsemanticmodelstructure,theintegrationcanbedescribedconditionscanbedividedintobindingtype,canrelationsbetweenanycombinationoffeatures,Willdesignsolutionsandinformationtechnologyintegration,thedesignprocesstoachieveadifferentlevelofabstractionofinformationbetweenthegraphicalmodeling.Theliterature11semanticnetworkdesignasadesigntoolinthedevelopmentofthesemanticnetworkdesignASK,usingnodesandanetworkoflinesdescribingthedesign,componentsofthenodethattheunitdesigntasks,functions,componentsorprocessingEquipment,etc.,andlinesusedtoadjustthedefinitionnodebetweendifferentsemanticrelations,whichinthedesignprocessforalltheactivitiesandresultsofprebuiltmodel,theearlydesignrequirementstothedefinitionofaspecificstructurecanbedescribedbytherelationshipbetweenThedefinitionoftheexpression,andacomputeraideddesignprocessfromabstracttoconcreteleap.1.3ideadesignlawWillbedividedintoproductdesignconceptanddesignintwostages.Ideaphaseofthemissionistoseek,selectanddesignportfoliotomeettherequirementsoftheoriginalunderstandingoftasks.Designstageofworkistheconcreterealizationoftheoriginalunderstandingoftheconceptualstage.TheprogrammewillbeideasforthespecificdescriptionAccordingtoasuitablefunctionalstructure,designedtomeettherequirementsofthemandateoftheoriginalunderstanding.Functionalstructureofthesubfunctionbystructuralelementstoachieve,andstructuralelementsofthephysicalconnectionbetweenthedefinitionoffunctionalcarrier,functionalcarrierandstructuralelementsandformationoftheinteractionbetweenthefunctionaldiagramMechanicalmovementdiagram.Programmeofdesignisbasedonfunctionaldiagram,thefirstqualitativedescriptionofallthefunctionalcarrierandstructuralelements,thenallthequantitativedescriptionofstructuralelementsandconnectingpiecesfunctionalvectortheshapeandlocationhaveThestructureof.Roper,H.useofgraphtheorytheory,thehelpfromhisdefinitionoftotaldesignunitGE,structureelementsKE,functionalstructureelementsFKE,connectingstructureelementsVKE,StructuralpartsKT,structuralelementspartsKETconcept,anddescribeselementsofsize,locationandtransmissionparametersoftherelationshipbetweenthenumberofthumbs,thedesignintuitivedesignexpertsdesignstage.Fromthedesignmethodologyofthepointofview,thedesigntaskwillbeclearafterthedesignworkisdividedintothreesteps1accesstofunctionsandfunctionalstructurereferredtoasfunctional,2findeffectsreferredtoastheeffectTofindstructurereferredtoastheconfigurationoftheRules.AndusethefollowingfourstrategiesdescribedmachineryideastageoftheprocessStrategy1wereconsideredfunctionalandeffectandconfigurationrules.Therefore,wecanworkinvariousstepstocreatevariationsintherespectiveprogrammes,resultingintheoriginalunderstandingofthebroadspectrum.Strategy2effectandconfigurationrulesincludingthedesignertocreatetherulesassociation,toconsideraseparatefunctionusuallyassociatedwiththedesigntask.Atthispoint,toidentifythetypicalconfigurationrulesandtheireffectsneedtohaveawealthofexperience,theprogrammespectrumfarlessthanastrategyoftheprogrammespectrum.Strategy3functionalandeffect,configurationrulesarecloselyrelated.Applicabletothefunction,andtheconfigurationoftherulesofnochoice,withspecialrequirementsoftheareas,suchasultrasmallmachinery,largemachinery,highvaluefunctionparts,andthosewithspecialrequirementsofthefunctionalcomponents,andsoon.Strategy4Inviewofthestructuraldesignrequirementsofthesolution.Thestrategystartingfromtheexistingparts,throughdifferentpartsoftheorderandconnection,wasexpectedtofunction.1.4MatrixDesignIntheprogrammedesignprocessusedinrequirementtologictreeortreedescribedrequirements,therelationshipbetweenthefunction,tosatisfytherequirementsoffunctionaldesignsolutionset,adifferentdesign.Accordingtorequesttologictreeestablishmentofarequesttoassociationmatrix,meettherequirementsnecessarytodescribethecomplexrelationshipbetweenfunction,expressedfunctionalrequirementsandtherelationshipbetweentheonetoone.otaetalwillmatrixasamechanicalsystemdesignbasis,themechanicalsystemdesignspaceasafunctionaldecompositionofspace,onlythateachsubspacedesignofamodule,intheabstractphaseofthehighlevel,witheachmoduledesignmovementconversionmatrixAndavectorfortheoperationofrestraintthatintheabstractphaseofthelowrise,eachmoduledesignparameterswereexpressedasamatrixandtheequationofmotion.1.5bondgraphLawWillformasystemcomponentsintothefunctiontogenerateenergy,energyconsumption,changingenergyforms,suchasvarioustypesofenergytransmissionanduseofbondgraphofthefunctionofthecomponentsthatwillbebasedonthefunctionsofthemodelandbondingwithplanstoachievefunctionalTheautomaticgenerationofstructuralandfunctionalstructureandbondingbetweentheautomaticconversionplanstoseekbondgraphgeneratedbyanumberofdesignmethods.2,modulardesignstructureFromtheperspectiveofplanningproductsthedefinitionofitsmandatetodesignfeaturesoftheproductstructureisbasedontheuseofexistingproductssuch

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