Logo do repositório
 

Synthesis of Viscoelastic Behavior Through Electromechanical Coupling

Carregando...
Imagem de Miniatura

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Tipo

Artigo

Direito de acesso

Resumo

Background: Viscoelasticity is a property of materials that present elastic and viscous behavior when they experience deformation. The simplest model that can represent the viscoelastic behavior is generally called the Standard Linear Solid model or Zener model. Purpose: Based on the Zener model, the objective of this paper is to present the concept and the design of equivalent electromechanical systems that permit the emulation of viscoelastic behavior. Besides, the possibility of harvesting the energy normally wasted as heat in viscoelastic materials is also considered. Methods: The methods applied in this paper are based on the analytic development of equations in time and frequency domain, including optimization and numerical simulations. Results: Equivalent equations were derived considering the mechanical and electromechanical analogy. These equations were verified by correlating known results from the literature. New results for white noise excitation were obtained and optimization of power harvesting was performed. Conclusions: The proposed electromechanical system is equivalent to the Zener system if its mechanical damping is small when compared to the equivalent electrical damping effect. Resulting in viscoelastic behavior without the need of viscoelastic materials, electromechanical equivalent Zener systems also allow energy recovery whilst maintaining vibration isolation.

Descrição

Palavras-chave

Electromechanical, Energy harvesting, Optimization, Vibration isolation, Viscoelastic

Idioma

Inglês

Citação

Journal of Vibrational Engineering and Technologies.

Itens relacionados

Financiadores

Unidades

Cursos de graduação

Programas de pós-graduação