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Modal SSDI-Max Technique of a Smart Beam Structure: broadband excitation

A. CHÉRIF1,2, C. RICHARD1, D. GUYOMAR1, S. BELKHIAT2, M. MEDDAD1,2, A. EDDIAI1,3, A. HAJJAJI4

Affiliation

  1. Université de Lyon, INSA-Lyon, LGEF EA 682, F-69621, France
  2. DAC HR Laboratory, Ferhat Abbas University, Setif, Algeria
  3. Département de Physique, Faculté des Sciences, Laboratoire de Physique de la Matière Condensée(LPMC), 24000 El Jadida, Morocco
  4. Ecole Nationale des Sciences Appliquees d’El Jadida,Université d’el Jadida, EL Jadida, Maroc

Abstract

Semi-active control is based on modal control strategy that needs very some energy for work but is effective only when the excitation is targeted on a unique mode. To improve the performance of semi-active control in the case of a broadband excitation, a modal approach SSDI-Max is proposed. This present paper presents an analysis of the performance of the SSDI-Max damping technique with a Beam-structure. It relies on simulations, made with the Matlab-Simulink environment, using a realistic model of a beam structure previously identified. The proposed method aims at maximizing the amplitude of the piezoelectric actuator by the definition of an optimal switching time according to the targeted mode chosen. Starting at this time, an algorithm is implemented to wait for the next voltage extremum within a given time window. The performances of the SSDI-Max method for the control of single mode of the structure are described in the case of pulse and noise excitations. Finally the influence of the delay time window used is described again for pulse and noise excitations for various modes..

Keywords

Piezoelectricity, smart beam structure, modal control, SSDI-Max control, broadband excitation,Time window.

Submitted at: April 17, 2013
Accepted at: June 12, 2013

Citation

A. CHÉRIF, C. RICHARD, D. GUYOMAR, S. BELKHIAT, M. MEDDAD, A. EDDIAI, A. HAJJAJI, Modal SSDI-Max Technique of a Smart Beam Structure: broadband excitation, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 5-6, pp. 438-446 (2013)