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Orientador(es)
Resumo(s)
In this paper two non-destructive methods for elastic and piezoelectric parameter estimation in active plate structures with surface bonded piezoelectric patches are presented. These methods rely on experimental undamped natural frequencies of free vibration. The first solves the inverse problem through gradient based optimization techniques, while the second is based on a metamodel of the inverse problem, using artificial neural networks. A numerical higher order finite element laminated plate model is used in both methods and results are compared and discussed through a simulated and an experimental test case.
Descrição
Palavras-chave
Piezoelectric parameters Gradient optimization Neural networks Finite element method
Contexto Educativo
Citação
Araújo, A.L.; Lopes, H.; Vaz, M.A.P.; Mota Soares, C.M.; Herskovits, J.; Pedersen, P. (2006). Parameter estimation in active plate structures. Computers & Structures. ISSN 0045-7949. 84:22-23, p.1471-1479
Editora
Elsevier