부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.ymssp.2005.05.004 Byline: Philippe Micheau (a), Stephane Renault (b) Abstract: The active control of vibration consists of generating an extra force in order to decrease the level of vibration. The problem with controlling complex structures is to shift from a higher order system to a reduced order decoupled system. This paper proposes the use a narrow-band approach to control one low damped mode among others. The originality of this paper is in the association of complex envelopes with both the narrow-band signals and the impulse response of the reduced order system. As a result, an explicit adaptive controller of complex envelopes is tuned according to a pole placement method. Experiments with a plate show the efficiency of the approach for different types of band-pass excitations: chirp, sinusoidal and band-pass noise. The main advantages of the complex envelope approach are an extremely reduced order system, consequently the numerical implementation is simplified. Author Affiliation: (a) G.A.U.S., Mechanical Engineering Department, Universite de Sherbrooke, Sherbrooke, Queb., Canada J1K 2R1 (b) E.N.S.I.L., GERME, 16 rue Atlantis, Parc d'ESTER 87068 Limoges Cedex, France Article History: Received 7 May 2004; Revised 17 March 2005; Accepted 13 May 2005