A Positioning Control ofaSerial TwinLinear Slider System withMachine Stand Vibration

oguroWces.kyutech.ac.jp ohkawaWces.kyutech.ac.jp Abstract -Inthis paper, wepresent acontrol system forserialdeveloped toimprove productivity whichiscalled theserial twinlinear slider systems withmachine stand vibration. Alineartwinlinear slider system recently. Adynamics oftheserial twin slider system inamachining center hasusedseveral linear motors linear slider systemhasa crossinterference dynamical toimprove its speed response recently. However, whenyoumove characteristic, because theMSVphenomenon iscaused byeach alinear motorquickly, alarge reaction force toamachine stand is 'v. . .' . . . ~~~~~~mover. MSV caused byamoverinterferes withapositioning induced, andthen avibration phenomenon occursinthemachine control oftheother mover.Therefore, MSV isabigproblem in stand. Thevibration greatly influences theaccuracy ofposition . . . . control inthelinear slider system. Moreover, inaserial twin theserial twinlinear slider system. linear slider system, whichhastwomovers, theproblem becomes Inthis paper, wepropose apositioning control oftheserial morecomplicated because tworeaction forces interfere mutually. twinlinear slider system withMSV.First, dynamics ofthe Tosolve theproblem, wemakeadynamic model ofaserial twin serial twinlinear slider system withtheMSV phenomenon is linear slider system withmachine stand vibration. Then,we analyzed insection 2.Insection 3,acontroller basedona design acontrol system based onthedynamic model. Thecontroldesign concept ofa2-degree-of-freedom (2DOF)controller is system consists ofa2DOFcontroller, adecoupling controller and proposed. Itisapplied a decoupling controller anda acompensation input formachine standvibration control. The disturbance observer tocancel thecrossinterference dynamical effectiveness ofthecontrol system wasverified byexperiments.characteristic. A compensation input forMSV control is proposed. Insection 4,itisshownthat aneffectiveness ofthe ////////////// motors iSable tobeeasily equipped withtwoormoremovers on~~~~~~~~~~~~~~~ on.ttr