外文翻译控制移动液压起重机其他专业（完整版）(文档可以直接使用，也可根据实际需要修改使用,可编辑欢迎下载）翻译部分英文原文CONTROLOFMOBILEHYDRAULICCRANESMarcE.MÜNZERAalborgUniversityInstituteofEnergyTechnology,Pontoppidanstræde101DK-9220Aalborg,DenmarkThegoalofthethesisdescribedinthispaperistoimprovethecontrolofmobilehydrauliccranes.Thethesisissplitintofiveparts:arequirementsanalysis,ananalysisofthecurrentsystemsandtheirproblems,ananalysisofdifferentpossibilitiesforsystemtopologies,developmentofanewcontrolsystemforthenearfuturebasedonelectro-hydraulicseparatemeterin/separatemeteroutvalves,andfinallyananalysisofmoreadvancedandcomplexsolutionswhichcanbeappliedinthemoredistantfuture.Theworkofthethesiswillbedoneincoop-erationwithindustrysothethesiswillhavemoreofanindustrialfocusthanapurelytheoreticalfocus.Keywords:MobileHydraulicCranes,ControlStrategies,SeparateMeter-in/SeparateMeter-out.1INTRODUCTIONThegoalofthethesisdescribedinthispaperistoimprovethecontrolofmobilehydrauliccranes.Amobilehydrauliccranecanbethoughtofasalargeflexiblemechanicalstructurewhichismovedbysomesortofcontrolsystem.Thecontrolsystemtakesitsinputfromahumanoperatorandtranslatesthiscommandintothemotionofactuatorswhichmovethemechanicalstructure.Thedefinitionofthiscontrolsystemispurposelyleftvagueinordernottoimposeanycon-straintsonitsdesign.Thecontrolsystemconsistsofactuatorswhichmovethemechanicalstructure,ameansofcontrollingtheactuators,ameansofsupplyingpowertotheactuators,andawayofacceptinginputsfromtheoperator.Itisthiscontrolsystemwhichisthetargetofthisthesis.Thegoalistoanalyzetherequirementsmadeonthecontrolsystemandpresentguidelinesforthedesignofnewcontrolsystems.Thethesiswillbesplitintofiveparts:1.Analysisoftherequirementsofthecontrolsystem,fromtheperspectiveoftheopera-tor,themechanicalsystem,efficiency,stability,andsafetyrequirements.2.Analysisofcurrentcontrolsystemsandwhattheirproblemsare.3.Analysisofthedifferentoptionsforthecontrolsystem:differenttypesofactuators,differenttypesofcontrolstrategies,anddifferentwaysoforganizingcomponent