对于65mn自由锻造液压机控制系统联合仿真

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1、机床与液压Oct．2012Hydr0mechatr0nicsEngineeringVo1．40No．19DOI：10．3969／j．issn．1001—3881．2012．19．008Co-simulationResearchontheControlSystemof65MNFreeForgingHydraulicPressZHANGLijie，BIANBin，LIYukunHebeiKeyLaboratoryofHeavyMachineryFluidPowerTransmissionandControl，YanshanUnivemi

2、ty，Qinhuangdao066004，ChinaAbstract：Thefreeforginghydraulicpresshasthecharacteristicsofhighworkingpressure，bigflowrate，andlargemovementinertia．Thiscontrolisverydificulttocarryout．Theobjectoftheresearchisthe65MNfreeforginghydraulicpress．Forthepurposeofenhancingtherapidit

3、y．re．ducingtheimpactofreliefandcommutationandimprovingthecontrolaccuracy，thispaperde．signsadirectdigitalfeedbackcontrolsystemcontainingpredictpartBang·Bangcontrol，Fuzzy，control，switchcontrol，generalobject(activebeam)andsensor．Thecontrolermodelisestab．1ishedinMatlab／Sim

4、ulink，andtheco-simulationiscarriedoutwithAMESim．Theco．simulationresultsareclosertotheideaIforgingcurvesinewaveandarebe~erthanthetraditionalPIDcon．troI．Keywords：freeforging，hydraulicpresscontmlsystem，co-simulationresearch，Withthedevelopmentofnationaleconomv．isnotprecise

5、enough．Cheneta1．[4—5]introducedmodernindustrialprocessisaccelerating．anddemandthedesignprocessofpredictedmulti-modefuzzycon．-forforgingsisalsoincreasingsubstantially．Andtheretroller．Theyobtainedgoodcontroleffectintl1esmallisahJghdemandforproductionefficiencyandforginga

6、ndmedium—tonnagefreeforginghydraulicpress．accuracy，whichputsforwardhigherrequirementsforButitwasraretostudyonlargetonnagefreefor~ngthespeedandcontrolaccuracyofthehydraulichydraulicpressindomestic．Synchronousbalancepress．Therefore．itiscrucia1todesignthecontrolcircuitsof

7、hydraulicsystemwereresearchedbyco—systemandselectthecontrolstrategies．Atthesamesimulationapplyingthesemi·-physicalsimulationsoft·-time，becauseofthecharacteristicsofnonlineartimewareAMESimandthecontrolsystemsimulationsoft．variety，parameterschangeandloaddisturbance，itwar

8、eSimulinkinTu’swork『6]．Becausesemi．isdifficulttoestablishtheexactmathematicsmodelphysicalsimulationmodelingisrelative