Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/5266
Título: Optimal design for active damping in sandwich structures using the Direct MultiSearch method
Autor: Araújo, Aurélio Lima
Madeira, José Firmino Aguilar
Mota Soares, C.M.
Mota Soares, Carlos Alberto
Palavras-chave: Active Damping
Piezoelectricity
Sandwich Structures
Direct MultiSearch
Multiobjective Optimization
Data: Nov-2013
Editora: Elsevier
Citação: ARAÚJO, Aurélio Lima; [et al] – Optimal design for active damping in sandwich structures using the direct multisearch method. Composite Structures. Vol. 105 (2013), pp. 29-34
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.
Peer review: yes
URI: http://hdl.handle.net/10400.21/5266
DOI: 10.1016/j.compstruct.2013.04.044
Aparece nas colecções:ISEL - Matemática - Artigos

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