Optimal design for active damping in sandwich structures using the Direct MultiSearch method


Autoria(s): Araújo, A. L.; Madeira, José Firmino Aguilar; Soares, C. M. Mota; Soares, C. A. Mota
Data(s)

05/11/2013

05/11/2013

01/11/2013

Resumo

This paper addresses the problem of optimal positioning of surface bonded piezoelectric patches in sandwich plates with viscoelastic core and laminated face layers. The objective is to maximize a set of modal loss factors for a given frequency range using multiobjective topology optimization. Active damping is introduced through co-located negative velocity feedback control. The multiobjective topology optimization problem is solved using the Direct MultiSearch Method. An application to a simply supported sandwich plate is presented with results for the maximization of the first six modal loss factors. The influence of the finite element mesh is analyzed and the results are, to some extent, compared with those obtained using alternative single objective optimization. (C) 2013 Elsevier Ltd. All rights reserved.

Identificador

ARAÚJO, A. L.; MADEIRA, J. F. A.; MOTA SOARES, C. M.; MOTA SOARES, C. A. - Optimal design for active damping in sandwich structures using the Direct MultiSearch method. Composite Structures. ISSN 0263-8223. Vol. 105 (2013), p. 29-34.

0263-8223

10.1016/j.compstruct.2013.04.044

http://hdl.handle.net/10400.21/2869

Idioma(s)

eng

Publicador

Elsevier SCI LTD

Direitos

restrictedAccess

Palavras-Chave #Active damping #Piezoelectricity #Sandwich structures #Direct multiSearch #Multiobjective optimization #Topology optimization #Smart structures #Actuators #Composite #Algorithm #Plate
Tipo

article