Design and robust optimal control of smart beams with application on vibrations suppression (Journal article)

Stavroulakis, G. E./ Foutsitzi, G./ Hadjigeorgiou, E./ Marinova, D./ Baniotopoulos, C. C.

This paper presents the design of a vibration control mechanism for a beam with bonded piezoelectric sensors and actuators and an application of the arising smart structure for vibrations suppression. The mechanical modeling of the structure and the subsequent finite element approximation are based on Hamilton's principle and classical engineering theory for bending of beams in connection with simplified modeling of piezoelectric sensors and actuators. Two control schemes LQR and H-2 are considered. The latter robust controller takes into account uncertainties of the dynamical system and moreover incompleteness of the measured information, it therefore leads to applicable design of smart structures. The numerical simulation shows that sufficient vibration suppression can be achieved by means of the proposed general methods. (C) 2005 Civil-Comp Ltd and Elsevier Ltd. All rights reserved.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών
Keywords: active structural control,smart beam,composite structure,piezoelectric layer,actuators,sensors,plates
ISSN: 0965-9978
Link: <Go to ISI>://000235689900012
Publisher: Elsevier
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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