On the use of the wave finite element method for passive vibration control of periodic structures

Autor(es)

Silva, Priscilla B. ^[1] ; Mencik, Jean-Mathieu ^[2] ; Arruda, Jose R. F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Fac Engn Mecan, Dept Mecan Computac, R Mendeleyev 200, BR-13083860 Campinas, SP - Brazil

^[2] Univ Tours, INSA Ctr Val Loire, LMR EA 2640, Campus Blois, 3 Rue Chocolaterie, CS 23410, F-41034 Blois - France

• Tipo de documento: Artigo Científico
• Fonte: ADVANCES IN AIRCRAFT AND SPACECRAFT SCIENCE; v. 3, n. 3, p. 299-315, JUL 2016.
• Citações Web of Science: 2

Resumo

In this work, a strategy for passive vibration control of periodic structures is proposed which involves adding a periodic array of simple resonant devices for creating band gaps. It is shown that such band gaps can be generated at low frequencies as opposed to the well known Bragg scattering effects when the wavelengths have to meet the length of the elementary cell of a periodic structure. For computational purposes, the wave finite element (WFE) method is investigated, which provides a straightforward and fast numerical means for identifying band gaps through the analysis of dispersion curves. Also, the WFE method constitutes an efficient and fast numerical means for analyzing the impact of band gaps in the attenuation of the frequency response functions of periodic structures. In order to highlight the relevance of the proposed approach, numerical experiments are carried out on a 1D academic rod and a 3D aircraft fuselage-like structure. (AU)

• Processo FAPESP: 13/23542-3 - Métodos numéricos baseados em elementos finitos ondulatórios para análise vibroacústica de estruturas contendo fluido
• Beneficiário: Priscilla Brandão Silva
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado Direto
• Processo FAPESP: 10/17317-9 - Estudo da propagação de ondas elásticas em estruturas periódicas
• Beneficiário: Priscilla Brandão Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto