Auteur Smith, Ralph C.
Documents disponibles écrits par cet auteur (3)
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Demetriou, Michael A., Auteur ; Smith, Ralph C., Auteur ; Ito, Kazufumi, Auteur |We consider a class of positive real infinite dimensional systems which are subjected to incipient actuator faults. The actuator fault is modeled as a time varying transition from an initial (linear or even nonlinear) map into another unknown no[...]
Article : texte imprimé
William S. Oates, Auteur ; Phillip G. Evans, Auteur ; Smith, Ralph C., Auteur |A hybrid nonlinear optimal control design is experimentally implemented on a magnetostrictive Terfenol-D actuator to illustrate enhanced tracking control at relatively high speed. The control design employs a homogenized energy model to quantify[...]
Article : texte imprimé
William S. Oates, Auteur ; Smith, Ralph C., Auteur |Many active materials exhibit nonlinearities and hysteresis when driven at field levels necessary to meet stringent performance criteria in high performance applications. This often requires nonlinear control designs to effectively compensate fo[...]
