Finite strain effects in piezoelectric energy harvesters under direct and parametric excitations
被引:23
作者:
Mam, Koliann
论文数: 0引用数: 0
h-index: 0
机构:
Univ Paris Est, CNRS, Lab Navier UMR 8205, Ecole Ponts ParisTech,IFSTTAR, F-77455 Marne La Vallee, France
Ecole Polytech, F-91128 Palaiseau, FranceUniv Paris Est, CNRS, Lab Navier UMR 8205, Ecole Ponts ParisTech,IFSTTAR, F-77455 Marne La Vallee, France
Mam, Koliann
[1
,2
]
Peigney, Michael
论文数: 0引用数: 0
h-index: 0
机构:
Univ Paris Est, CNRS, Lab Navier UMR 8205, Ecole Ponts ParisTech,IFSTTAR, F-77455 Marne La Vallee, FranceUniv Paris Est, CNRS, Lab Navier UMR 8205, Ecole Ponts ParisTech,IFSTTAR, F-77455 Marne La Vallee, France
Peigney, Michael
[1
]
Siegert, Dominique
论文数: 0引用数: 0
h-index: 0
机构:
Univ Paris Est, IFSTTAR, COSYS, LISIS, F-77455 Marne La Vallee, FranceUniv Paris Est, CNRS, Lab Navier UMR 8205, Ecole Ponts ParisTech,IFSTTAR, F-77455 Marne La Vallee, France
Siegert, Dominique
[3
]
机构:
[1] Univ Paris Est, CNRS, Lab Navier UMR 8205, Ecole Ponts ParisTech,IFSTTAR, F-77455 Marne La Vallee, France
[2] Ecole Polytech, F-91128 Palaiseau, France
[3] Univ Paris Est, IFSTTAR, COSYS, LISIS, F-77455 Marne La Vallee, France
Piezoelectric materials;
Finite strains;
Energy harvesting;
Parametric resonance;
Nonlinearities;
BEAM;
D O I:
10.1016/j.jsv.2016.11.022
中图分类号:
O42 [声学];
学科分类号:
070206 ;
082403 ;
摘要:
This paper addresses the dynamic behavior of piezoelectric cantilevers under base excitations. Such devices are frequently used for applications in energy harvesting. An Euler-Bernoulli model that accounts for large-deflection effects and piezoelectric nonlinearities is proposed. Closed-form expressions of the frequency response are derived, both for direct excitation (i.e. with a base acceleration transverse to the axis of the cantilever) and parametric excitation (i.e. with a base acceleration along the axis of the cantilever). Experimental results are reported and used for assessing the validity of the proposed model. Building on the model presented, some critical issues related to energy-harvesting are investigated, such as the influence of nonlinearities on the optimal load resistance, the limits of validity of linear models, and hysteresis effects in the electrical power. The efficiency of direct and parametric excitation is also compared in detail. (C) 2016 Elsevier Ltd. All rights reserved.