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1、液压伺服系统设计（Designofhydraulicservosystem）DesignofhydraulicservosystemInthehydraulicservosystemwithhydraulicservovalveasinputsignalconversionandamplificationdevice.Thehydraulicservosystemwithsmallpowerinputsignal,hydrauliccontrolpowercanoutput(flowandpressure),andcanobtainhighcontrolprecision
2、andfastresponsespeed.Thepositioncontrol,speedcontrolthegeneraldesignstepsofforcecontrol,threekindsofhydraulicservosystemareasfollows:1)cleardesignrequirements:fullyunderstandthedesigntasksproposedprocess,structureandtimelyperformancerequirementsofthesystem,andtheloadconditionsshouldbeanal
3、yzedindetail2)drawupthecontrolschemeanddrawtheschematicdiagramofthesystem3)staticcalculation:determinetheparametersofpowercomponents,selectfeedbackcomponentsandotherelectricalcomponents4)dynamiccalculation:determinethetransferfunctionofthesystem,drawingonHuanbodetu,stabilityanalysis,calcu
4、lationofdynamicperformanceindex.R>5)checktheprecisionandperformanceindicators,thechoiceofcorrectionandcorrectionofdesignelements.6)selecthydraulicenergyandcorrespondingaccessories7)completetheexecutionelementandthehydraulicenergyconstructiondesignThecontentofthischapterismainlyinaccordanc
5、ewiththeabovedesignsteps,toillustratethedesignprincipleofhydraulicservosystemandintroducesthedesigncalculationmethod.Thepositioncontrolsystemisthemostbasicandmostwidelyused,sothiswillbeavalvecontrolledhydrauliccylinderpositionsystem.4.1comprehensiveunderstandingofdesignrequirements4.1.1fu
6、llyunderstandthecontrolledobjectHydraulicservocontrolsystemisapartoftheobjectofthehost,itmustmeettheneedsofthehostoftheprocessandstructurerequirements.Suchashydraulicscrewdownbypositioncontrolsystem,butshouldbeabletowithstandthemaximumload,meettherollingmillrollgapadjustmentstroke,adjustt
7、hespeedandcontrolprecisionotherrequirements,actuator-pressurehydrauliccylinderinsizeisalsoaffectedbytherollingmillhousingwindowsizeconstraint,thestructuremustalsomeettherequirementssuchasconvenientrollerreplacement.Todesignagoodcontrolsystem,fullattentionmustbepaidt
