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页数:7页
时间:2019-05-13
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1、HydromechatronicsEngineering机床与液压DOI:10.3969/j.issn.1001—3881.2012.06.011ResearchonMicro-torquePassiveMotor-drivenLoadSimulatorbasedonBacksteppingTheoryHUANGXiaodong,YANGHongyan,LIGeqiang,GUOBingjing,CUIXiao(InstituteofMechanicalandElectricalEngineering,HenanUniversity
2、ofScienceandTechnology,Luoyang471003,Abstract:Amicrotorquehigh—frequencyhigh—precisionpassiveelectricloadsimulationsystemisresearched,thepaperproposesabacksteppingcontrolmethodtosolvethestrongforce/positioncouplingproblem.Thesystemisseenasasingle—inputandmultiple—outpu
3、tsystem,andadynamicmodelofthecouplingisestablished.Byintroducinganappro—priatevirtualcontrolquantity,thispaperdesignsabacksteppingcontroller,whichmakesthesystemerrorhaveanex—pectedprogressiveshape,andtheoreticallyprovesthesystemstabilityonthebaseofLyapunovmethod.Fromth
4、esimu—lationresults,aconclusioncouldbedrawnthatwhenthesinesignalisupto60Hz,amplitudetrackingerorofbearingsystemisabout0.5%0radandphaselagisabout10。;Atthesametime,theamplitudetrackingerorofloadingsystemisabout0.2%N·mandphaselagisabout10。.Therefore.thesimulationresultsva
5、lidatethismethodandprovethefeasibilityofthismethod.Keywords:microtorque,passive,bearingsystem,loadingsystem,backsteppinganeeparametersofaircraftrudderaregettinghigher1IntroductiOilandhigher.Forexample,inaanti—tankmissileservorudderusedinagroundwar,therudderalwayshasaOn
6、eapplicationofpassiveloadingservosystemveryhighfrequencyself—excitedoscillationtoenhancewastheexperimentalstudyofaerodynamicforthehitpr0babilityrapidresponseandtrackingcapa.,hingetorqueontherudderthataircraftsuffersunderbility.Thefrequencyreachesahighvalueupto60thelabo
7、ratoryconditions[theprecisionandfre-,Hz,however,thelargestbeatingtorqueisonly0.1quencyresponsearethemainperformanceparame—N·m,whichisSO—calledthemicrotorque.Inorderters·Sincetheprecisionandfrequencyresponsear。torea1izetheloadsimulationofrIJdder.themoto卜gettingrigorousf
8、ortheloadingsystem,theperform—drivenmethodismostappropriateapproach.Received:2012-02-22NationalNaturalScienceKeyFound
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