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1、AbstractElectro-hydraulicservovalveisthekeycomponentoftheelectro-hydraulicservocontrol,itisakindofacceptanalogelectricalsignals,modulationofthecorrespondingoutputflowandpressureofthehydrauliccontrolvalve.Electro-hydraulicservovalveafternearlyacenturyofdevelop
2、ment,hasbeenverymature,graduallybecameastandardizedcontrolelement.Developmentuptonow,becauseofitshavefordifferentdomaincanreflectvariousadvantages,greatlybroadentheapplicationfieldsofservovalve.Fromthemostbasiccivilianindustry,construction,machinery,metallurg
3、y,textile),tothecountry'smilitarytechnology,andeventhefutureoftheaerospacefield,allkindsofstructureoftheservovalveisdeveloped,playsaveryimportantroleincontrol,isthemostrespectedbydevelopedcountriesinthehydraulictechnologydevelopmentofoneofthecoretechnology.Th
4、ispaperfirstintroducestheresearchhistoryofelectrhydraulicservovalve,especiallypointsouttheseveralsignificantbreakthroughsindesign.Thenfocusesondeflectionplateforcefeedbacktypeservovalve,pre-stageusesadeflectionplateandthejetflowstructureandworkingprincipleofd
5、isccomponent,analyzestheadvantagesanddisadvantagesofusingthepre-stagecomponents,andestablishedthemathematicalmodelofthewholesystem.Servovalvearemeasuredwiththehelpoftheexistingworkperformanceindicatorssystem,thecharacteristicsoftheestablishmentofindexsystemfo
6、rthecharacteristicsofthedeflectionplatevalve,andfocusedonthetheoryofallkindsofcharacteristicparametersindetail,thecharacteristiccurveofthediagram.Throughtheexperimentandsimulationstructureofthestructuralphysicalparameters,combinedwiththestructureofthevalveofe
7、achtransferphysicalformula,buildsimulationmodelintheAMESimsoftware,solvingthedeflectorservovalveinallkindsofcharacteristiccurve,andfurthertostudyonthesensitivityoftheparametersofsystem.Theflowresponsecurvesofthejetpanservovalvewereshowedunderseveralkindsofinp
8、utsignals,theinfluenceofmainparametersonitsdynamicresponsecharacteristicswasanalyzed.FinalargumentAMEsimmodelcansimulatethevalveunderdifferentstructureparametersofstaticanddynamicperforma
