Reference : A geometrically nonlinear shear deformable beam model for piezoelectric energy harvesters
Scientific journals : Article
Engineering, computing & technology : Multidisciplinary, general & others
Computational Sciences
http://hdl.handle.net/10993/54220
A geometrically nonlinear shear deformable beam model for piezoelectric energy harvesters
English
Shang, Lan [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
Hoareau, Christophe [Conservatoire national des arts et métiers (Cnam) > Laboratoire de Mécanique des Structures et des Systèmes Couplés (LMSSC)]
Zilian, Andreas mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >]
2021
Acta Mechanica
Springer
232
12
4847-4866
Yes
International
0001-5970
1619-6937
Vienna
Germany
[en] An electromechanical model for beam-like piezoelectric energy harvesters based on Reissner’s beam theory is developed in this paper. The proposed model captures first-order shear deformation and large displacement/rotation, which distinguishes this model from other models reported in the literature. All governing equations are presented in detail, making the associated framework extensible to investigate various piezoelectric energy harvesters. The weak formulation is then derived to obtain the approximate solution to the governing equations by the finite element method. This solution scheme is completely coupled, and thus allows for two-way interaction between mechanical and electrical fields. To validate this model, extensive numerical examples are implemented in the linear and nonlinear regime. In the linear limit, this model produces results in excellent agreement with reference data. In the nonlinear regime, the large amplitude response of the piezoelectric beam induced by strong base excitation or fluid flow is considered, and the comparison of results with literature data is encouraging. The ability of this nonlinear model to predict limit cycle oscillations in axial flow is demonstrated.
Fonds National de la Recherche - FnR
Researchers
http://hdl.handle.net/10993/54220
10.1007/s00707-021-03083-5
FnR ; FNR12252781 > Andreas Zilian > DRIVEN > Data-driven Computational Modelling And Applications > 01/09/2018 > 28/02/2025 > 2017

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