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1、液压伺服系统设计（Hydraulicservosystemdesign）HydraulicservosystemdesignHydraulicservosystemdesignInthehydraulicservosystemwithhydraulicservovalveasinputsignalconversionandamplificationdevice.Thehydraulicservosystemwithsmallpowerinputsignal,hydrauliccontrolpowercanoutput(
2、flowandpressure),andcanobtainhighcontrolprecisionandfastresponsespeed.Thepositioncontrol,speedcontrolthegeneraldesignstepsofforcecontrol,threekindsofhydraulicservosystemareasfollows:1)cleardesignrequirements:fullyunderstandthedesigntasks,theproposedprocess,struc
3、ture,timely,systemperformancerequirements,andshouldanalyzetheloadconditionsindetail2)drawupthecontrolschemeanddrawtheschematicdiagramofthesystem3)staticcalculation:determinetheparametersofpowercomponents,selectfeedbackcomponentsandotherelectricalcomponents4)dyna
4、miccalculation:determinethetransferfunctionofthesystem,drawingonHuanbodetu,stabilityanalysis,calculationofdynamicperformanceindex.R>5)checktheprecisionandperformanceindicators,thechoiceofcorrectionandcorrectionofdesignelements.6)selecthydraulicenergyandcorrespon
5、dingaccessories7)completethecomponentsandhydraulicenergyconstructiondesignThecontentofthischapterismainlyinaccordancewiththeabovedesignsteps,toillustratethedesignprincipleofhydraulicservosystemandintroducesthedesigncalculationmethod.Thepositioncontrolsystemisthe
6、mostbasicandmostwidelyused,sothiswillbeavalvecontrolledhydrauliccylinderpositionsystem.4.1comprehensiveunderstandingofdesignrequirements4.1.1comprehensiveunderstandingoftheaccusedobjectHydraulicservocontrolsystemisapartoftheobjectofthehost,itmustmeettheneedsofth
7、ehostoftheprocessandstructurerequirements.Suchashydraulicscrewdownbypositioncontrolsystem,butshouldbeabletowithstandthemaximumload,meettherollingmillrollgapadjustmentstroke,adjustthespeedandcontrolprecisionotherrequirements,actuator-pressurehydrauliccylinderinsi
8、zeisalsoaffectedbytherollingmillhousingwindowsizeconstraint,thestructuremustalsomeettherequirementssuchasconvenientrollerreplacement.Todesignagoodcontrolsystem,fullat
