000015860 001__ 15860
000015860 005__ 20161115135331.0
000015860 04107 $$aeng
000015860 046__ $$k2013-06-12
000015860 100__ $$aGhareeb, N.
000015860 24500 $$aDesign and Implementation of a Linear Controller on a Reduced Model of a Smart Structure

000015860 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015860 260__ $$bNational Technical University of Athens, 2013
000015860 506__ $$arestricted
000015860 520__ $$2eng$$aActive vibration control of smart structures has gained much attention in the last decades. A simple active control system consists of the mechanical structure where vibration occurs, a sensor to perceive the vibration, an actuator to counteract the influence of disturbances and finally, the controller responsible for the generation of the appropriate control signal. The smart structure used in this work comprises a cantilevered beam with a piezoelement glued to it. A finite element model is initially created and then it is reduced to a super element with a finite number of degrees of freedom. Damping properties are also calculated and added to the reduced model, and the model is verified. Finally, a linear control law based on the Lyapunov stability theorem is used to attenuate the vibrations of the smart beam excited with its first eigenmode. The controller is applied directly to the super element model and after that to the extracted state-space model too. Results from both models are then presented and compared.

000015860 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015860 653__ $$aFinite element modeling, Super element, Classical damping, Lyapunov stability theorem.

000015860 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015860 720__ $$aGhareeb, N.$$iSchmidt, R.
000015860 8560_ $$ffischerc@itam.cas.cz
000015860 8564_ $$s574977$$uhttps://invenio.itam.cas.cz/record/15860/files/1585.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 30 ROBUST MODELING AND CONTROL FOR SMART STRUCTURES
.
000015860 962__ $$r15525
000015860 980__ $$aPAPER