外文翻译-现代起重机的特征和发展趋向

毕业设计中英文翻译CHARACTERISTICSANDDEVELOPMENTALTENDENCYOFMODERNCRANES现代起重机的特征和发展趋向学生姓名学号学院专业机械设计制造及其自动化指导教师年6月外文原文CHARACTERISTICSANDDEVELOPMENTALTENDENCYOFMODERNCRANESWITHRAPIDDEVELOPMENTOFMODERNSCIENCEANDTECHNOLOGY,MAGNIFICATIONOFINDUSTRIALPRODUCTIONSCALEANDIMPROVEMENTOFAUTOMATIONLEVEL,APPLICATIONOFCRANESISBECOMINGWIDESPREADANDITSFUNCTIONISOBVIOUSMEANWHILE,REQUIREMENTSFORCRANESAREMOREANDMORESTRICTESPECIALLY,THEWIDESPREADUSEOFELECTRONICCOMPUTERTECHNOLOGYSPURSLOTSOFSUBJECTCROSSINGADVANCEDDESIGNAPPROACHESANDACCELERATESTHEIMPROVEMENTOFMODERNMANUFACTURINGANDDETECTINGTECHNOLOGYFIERCECOMPETITIONININTERNATIONALMARKETBECOMESMOREDEPENDENTONTHECOMPETITIONOFTECHNOLOGYALLOFTHESEIMPELTECHNOLOGICALFUNCTIONSOFCRANESINTOABRANDNEWDEVELOPMENTALSTAGECRANESAREFACINGATREMENDOUSTRANSFORMATIONOURCOUNTRYISENTERINGGLOBALINTERNATIONALCOMPETITIVEMARKETATANUNPRECEDENTEDRATEANDCRANEMANUFACTUREISCONFRONTEDWITHANEWSITUATIONWHEREOPPORTUNITIESANDCHALLENGESCOEXISTTHUS,ITISCRUCIALFORCRANESTODEVELOPANDINNOVATECONSTANTLYIWANTTOMAKEABRIEFEXPLANATIONABOUTCHARACTERISTICSANDDEVELOPMENTALTENDENCYOFMODERNCRANESWITHEXAMPLES,BASEDONNEWTHEORIES,TECHNOLOGYANDTRENDOFCRANESATHOMEANDOVERSEAS1MAKETHEKEYPRODUCTSLARGE,HIGHSPEED,ENDUREDANDSPECIALIZEDBECAUSEOFCONTINUOUSEXPANSIONOFINDUSTRIALPRODUCTIONSCALE,INCREASINGLYIMPROVEMENTOFPRODUCTIONEFFICIENCYANDRISINGPROPORTIONOFMONEYSPENDINGONLOADINGANDUNLOADINGANDTRANSPORTINGMATERIALSINTHEPROCESSOFPRODUCTION,REQUIREDAMOUNTOFLARGEORHIGHSPEEDCRANESISINCREASINGLIFTINGQUANTITIESBECOMELARGER,WORKINGSPEEDBECOMESHIGHERANDREQUIREMENTSOFENERGYCONSUMINGANDRELIABILITYBECOMESTRICTERCRANESHAVEALREADYBECOMEACRITICALLINKINTHEPROCESSOFAUTOMATIONPRODUCTIONCRANESSHOULDBEEASYTOUSE,MAINTAINANDOPERATEANDHAVEHIGHSECURITY,LESSTROUBLESANDLONGAVERAGETIMEBETWEENFAILURESTHECENTRALISSUEININTERNATIONALMARKETPRODUCTIONCOMPETITIONISRELIABILITY,ANDMANYCOMPANIESABROADHAVEDRAWNUPINTERCONTROLLEDSTANDARDOFRELIABILITYTHEMOSTIMPORTANTFORUSTOCATCHUPWITHANDSURPASSWORLDADVANCEDLEVELOFCRANESFUNCTIONISTOIMPROVERELIABILITY,TOMAKECRANESDURABLE,LESSTROUBLES,MAINTAINABLEANDECONOMICTOBEUSEDATTHEMOMENT,THEBIGGESTFLOATINGCRANEINTHEWORLDWEIGHS6500T,CHAINCRANE3000TANDBRIDGECRANE1200TDIVERSITYOFINDUSTRIALMODEOFPRODUCTIONANDCUSTOMERSNEEDMAKESCRANEMARKETEXPANDINGANDPRODUCTSRENEWINGCONSTANTLYTOSATISFYSPECIALNEEDSWITHSPECIFICFUNCTIONSANDBRINGITSBESTUSEFULNESSINTOPLAYFUNCTIONSOFVARIOUSKINDSOFCRANESAREIMPROVINGDEMAGERGOTECHHASDEVELOPEDACRANESPECIALFORAIRCRAFTMAINTENANCE,WHICHHASMADEITSOWNWAYINTOINTERNATIONALMARKETTHISCRANEISGREATINLENGTHANDLIFTINGHEIGHTANDHASACCURATEHALTWHENAFLEXIBLEMAINTENANCEPLATFORMFIXEDUNDERLIFTINGCART,ITCANREACHEVERYPARTOFTHEAIRCRAFTWITHTHEFASTDEVELOPMENTOFNUCLEARPOWERSTATIONSINTHEWORLD,CRANESWHICHARESPECIALFORTHEMACHIEVECORRESPONDINGDEVELOPMENTFOREXAMPLE,ANNULARBRIDGECRANEINREACTORSSPACE,WORKINGUNDERRADIATIVECIRCUMSTANCES,ISUSEDTOLIFTDANGEROUSLOADSUCHASTOPCOVEROFPRESSURECONTAINERANDCOMPONENTSINREACTORSITREQUIRESHIGHRELIABILITY,HIGHSECURITY,THEABILITYTODETERMINELOCATIONACCURATELYANDAUTOMATICALLYANDTRANSFERGOODSTOALOWERLEVEL,ASWELLASVARIOUSKINDSOFPROTECTIONANDPARTICULARSECURITYDEVICES2MAKESERIESOFPRODUCTIONMODULARIZED,COMBINED,STANDARDIZEDANDPRACTICALMOSTCRANESAREPRODUCEDBYSERIESANDBATCH,THUSUSEOFSYSTEMATICMULTIOBJECTIONSENTIREOPTIMIZATIONTODESIGNSERIESOFCRANESHASALREADYBECOMETHEKEYPOINTINDEVELOPMENTTHROUGHRATIONALMATCHINGOFSERIESMAINPARAMETER,ITSFUNCTIONSCANBEIMPROVED,MANUFACTURINGCOSTCANBEREDUCED,ANDDEGREEOFGENERALPURPOSECANBERAISEDUSELESSSPECIFICATIONSPAREPARTSTOCOMPOSESERIESPRODUCTIONWITHMULTISPECIESANDMULTISPECIFICATIONSANDTHUS,THEREQUIREMENTSOFCUSTOMERSCANBEFULLYSATISFIEDBYUSINGMODULARIZEDDESIGNINSTEADOFCONSERVATIVEENTIREDESIGN,WECANMAKECOMPONENTSWITHSIMILARFUNCTIONSINTOSTANDARDMODULESWHICHHAVEVARIOUSUSES,SIMILARCONNECTIVEKEYFACTORSANDAREINTERCHANGEABLETHROUGHCOMBINATIONOFDIFFERENTMODULES,WECANMAKEDIFFERENTKINDSANDSPECIFICATIONSOFCRANESTHEREAREONLYSEVERALMODULESINVOLVEDWHENITCOMESTOCRANEIMPROVEMENTTODESIGNANEWSTYLEOFCRANE,ALLTHATYOUDOISTOCHOOSEDIFFERENTMODULESTORECOMPOSEBECAUSEOFIMPROVEMENTINDEGREEOFGENERALPURPOSE,SINGLEPRODUCTSWITHSMALLSERIALPRODUCTIONCANTRANSFORMINTOMODULEPRODUCTIONOFPRETTYGREATBATCHESASARESULT,WECANACHIEVESPECIALIZATIONPRODUCTIONWITHHIGHEFFICIENCYANDCUTMANUFACTURINGCOSTITCANSATISFYMARKETINGDEMANDSANDINCREASECOMPETITIVECAPACITYBYCOMPOSINGCRANESOFVARIOUSSERIESANDSPECIFICATIONSUSINGLESSMODULARIZEDFORMSBRIDGECRANEPRODUCEDBYDEMAGERGOTECHCONSIDEREDCAREFULLYMODULARIZATIONANDCOMBINATIONITMAKESINTERPARAMETEROFSERIES,ENTIRETY,MECHANISMANDCOMPONENTSMATCHEDWITHEACHOTHERTHEDISTRIBUTIONOFCAPACITYOBTAINSMOSTECONOMICANDSUITABLEEFFECTSTOMAKETHEMAINCOMPONENTSOFLIFTINGMECHANISMREACHESITSLARGESTGENERALPURPOSE,THEMETHODTHATTHERESULTOFLIFTINGWEIGHTSMULTIPLYINGLIFTINGSPEEDISACONSTANTHASBEENUSEDTHEREAREMORESPECIFICATIONSDERIVEDTHROUGHCHANGESOFPULLEYMULTIPLYINGPOWERSERIESOF5125TBRIDGECRANESONLYNEEDFOURBASICLIFTINGCARTSEVENWITHVARIOUSWORKINGRANKSMODULESERIESOFSTANDARDWHEELCASES,WHICHAREPRODUCEDBYTHECOMPANY,HAVEVARIOUSGROUPSOFLINKINGHOLESWHICHCANCHOOSEDIFFERENTDR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