一种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，LIYukunHebeiKeyLaboratoryofHeavyMachineryFluidPowerTransmissionandCont

2、rol，YanshanUnivemity，Qinhuangdao066004，ChinaAbstract：Thefreeforginghydraulicpresshasthecharacteristicsofhighworkingpressure，bigflowrate，andlargemovementinertia．Thiscontrolisverydificulttocarryout．Theobjectoftheresearchisthe65MNfreeforginghydraulicpres

3、s．Forthepurposeofenhancingtherapidity．re．ducingtheimpactofreliefandcommutationandimprovingthecontrolaccuracy，thispaperde．signsadirectdigitalfeedbackcontrolsystemcontainingpredictpartBang·Bangcontrol，Fuzzy，control，switchcontrol，generalobject(activebeam

4、)andsensor．Thecontrolermodelisestab．1ishedinMatlab／Simulink，andtheco-simulationiscarriedoutwithAMESim．Theco．simulationresultsareclosertotheideaIforgingcurvesinewaveandarebe~erthanthetraditionalPIDcon．troI．Keywords：freeforging，hydraulicpresscontmlsyste

5、m，co-simulationresearch，Withthedevelopmentofnationaleconomv．isnotpreciseenough．Cheneta1．[4—5]introducedmodernindustrialprocessisaccelerating．anddemandthedesignprocessofpredictedmulti-modefuzzycon．-forforgingsisalsoincreasingsubstantially．Andtheretroll

6、er．Theyobtainedgoodcontroleffectintl1esmallisahJghdemandforproductionefficiencyandforgingandmedium—tonnagefreeforginghydraulicpress．accuracy，whichputsforwardhigherrequirementsforButitwasraretostudyonlargetonnagefreefor~ngthespeedandcontrolaccuracyofth

7、ehydraulichydraulicpressindomestic．Synchronousbalancepress．Therefore．itiscrucia1todesignthecontrolcircuitsofhydraulicsystemwereresearchedbyco—systemandselectthecontrolstrategies．Atthesamesimulationapplyingthesemi·-physicalsimulationsoft·-time，becauseo

8、fthecharacteristicsofnonlineartimewareAMESimandthecontrolsystemsimulationsoft．variety，parameterschangeandloaddisturbance，itwareSimulinkinTu’swork『6]．Becausesemi．isdifficulttoestablishtheexactmathematicsmodelphysicalsimulationmodelingisrelative