基于磁控形状记忆合金驱动器伺服阀的建模与仿真

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1、机床与液压Dec．2013HydromechatronicsEngineeringV0l_41No．24DOI：10．3969／j．issn．1001-3881．2013．24．008ModelingandSimulationofServoValveBasedontheMagneticSharpMemoryAlloysActuatorTUFuquan，MAOYang，ZHAOZhenfei，LIHeKeyLaboratoryofMetallurgicalEquipmentandControlTechnology，MinistryofEducation，Wuha

2、nUniversityofScienceandTechnology，Wuhan430081，ChinaAbstract：Thepaperdesignsapilotservovalvemodelbasedonmagneticsharpmemoryalloys(MSMA)andusesAMEsimtechnologytosimulatethecontroller．TheservovalveperformancecanbeobservedthroughtheAMEsimsimulationwindow．ThePIDcontrolisaddedtoreducethel

3、argeovershootoftheservovalveunderthesamerisetime．Forthesakeoffurtherimprovingthecharacterjsticsofservovalve．thesystemjntroducestheexpe~PIDandAMEsim／Simulinksimu—lationtechnologytorealizetheeffectiveoperationinthewholesystemandobtainedtheidealsim-ulationresults．Keywords：pilotservoval

4、ve，MSMA，PID，jointsimulationactuatorusingAMEsimsoftwareandPIDcontroller．1．IntroductionAMEsimsoftwaresetsupmanymodelingcontributingtothereasonabledesignofthewholesystem．Inrecentyears，theresearchesonhighfrequen—ThemodelscreatedbvAMEsimsoftwarecanbecyelectro—hydraulicservovalve，whichisd

5、rivenbymodifieddirectlyinthelaterworks．whicheffectivelyfunctionalmaterialsactuator，havereceivedincreas—ireprovesworkefficiency．AMEsimandSimulinkingattention[1]．MSMAistheprocessbywhichasoftwareembedmanyalgorithmstoensurethesys．ferromagneticmaterialtransformsfromoneshapetotem’sspeedan

6、daccuracy，aswellasofferavarietyanotherinthepresenceofamagneticfield．TheMS—ofinterfaeesimulationtools．MAshapechangecanbeaxialstrain，bending，shearorthecombinationofthem．SincetheMSMAforces2．Structureofservovalveactuatorbasedaremolecularinorigin，itsmechanicalresponseisonMSMAveryfastinam

7、atterofmicroseconds[2]．Asanewtypefunctionalmaterial，MSMAshowsremarkableInthemagneticfieldofactuator，thenumberofpotentialsinovercomingthelimitationoftheprede—thecoilsNisusedtogeneratethecurrentintensityJr．cessorssuchastheircomparativelylargestrainandFollowingrelationshipsexistbetween

8、themagneticmanyadva