Nonlinear mechanics of beams with partial piezoelectric layers

Farokhi, Hamed and Ghayesh, Mergen H. (2019) Nonlinear mechanics of beams with partial piezoelectric layers. Journal of Applied Mechanics, 86 (10). p. 101011. ISSN 0021-8936

[img] Text
Farokhi, Ghayesh - Nonlinear mechanics of beams with partial piezoelectric layers AAM.pdf - Accepted Version
Restricted to Repository staff only until 17 July 2020.
Available under License Creative Commons Attribution 4.0.

Download (4MB) | Request a copy
Official URL: https://doi.org/10.1115/1.4044241

Abstract

This paper investigates the nonlinear static response as well as nonlinear forced dynamics of a clamped-clamped beam actuated by piezoelectric patches partially covering the beam from both sides. This study is the first to develop a high-dimensional nonlinear model for such piezoelectric-beam configuration. The nonlinear dynamical resonance characteristics of the electromechanical system is examined under simultaneous DC and AC piezoelectric actuations, while highlighting the effects of modal energy transfer and internal resonances. A multi-physics coupled model of the beam-piezoelectric system is proposed based on the nonlinear beam theory of Bernoulli-Euler and the piezoelectric constitutive equations. The discretised model of the system is obtained with the help of the Galerkin weighted residual technique while retaining 32 degrees of freedom. Three-dimensional finite element analysis is conducted as well in the static regime to validate the developed model and numerical simulation. It is shown that the response of the system in the nonlinear resonant region is strongly affected by a three-to-one internal resonance.

Item Type: Article
Uncontrolled Keywords: Nonlinear mechanics; Piezoelectric layer; Coupled; Bending
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Paul Burns
Date Deposited: 30 Aug 2019 11:09
Last Modified: 11 Oct 2019 13:01
URI: http://nrl.northumbria.ac.uk/id/eprint/40470

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics


Policies: NRL Policies | NRL University Deposit Policy | NRL Deposit Licence