Free, periodic, large amplitude vibrations of small-scale piezoelectric beams by a modified couple stress theory

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2018

Autores

Batool Soleimani Roody (Autor) Outra; Hamed Akhavan (Autor) FEUP; Pedro Ribeiro (Autor) FEUP; Ali Reza Fotuhi (Autor) Outra

Ata de Conferência Internacional

Título: Dynamics of micro and nano electromechanical systems: multi-field modelling and analysis (Proceedings of EUROMECH Colloquium 603)

Páginas: 1-4

EUROMECH Colloquium 603

Porto, Portugal, 3 September 2018

Outras Informações

Abstract (EN): With the goal of studying the evolution of their natural frequencies with the vibration amplitude, free, periodic vibrations of small-scale beams in piezoelectric materials are investigated. A modified couple stress theory is applied, in order to take the smallscale effects into consideration. The partial differential governing equations are transformed to ordinary differential equations by Bubnov-Galerkin’s method. The latter equations are solved by the method of Multiple Scales. The results of this perturbation method are compared with solutions computed using a numerical method for boundary value problems, known as shooting method. The small-scale effects on the non-linear natural frequencies of piezoelectric beams are discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4