Piezoelectric energy harvesting from beam vibrations induced by an aerodynamic force generated by a fluctuating wind

被引：0

作者：

Zemtchou, Francis Rolphe ^{[1
,2
]}

Takam, Jeanne Sandrine Mabekou ^{[1
,2
]}

Fotso, Patrick Herve Louodop ^{[2
,3
,4
,5
]}

Talla, Pierre Kisito ^{[1
,2
]}

机构：

[1] Univ Dschang, Res & Modelisat Unit Mech & Phys Syst, POB 67, Dschang, Cameroon

[2] Univ Dschang, MoCLiS Res Grp, Dschang, Cameroon

[3] Univ Dschang, Res Unit Condensed Matter Elect & Signal Proc, POB 67, Dschang, Cameroon

[4] Sao Paulo State Univ UNESP, ICTP South Amer Inst Fundamental Res, Sao Paulo, Brazil

[5] Inst Fis Teor CA, BR-01140070 Sao Paulo, Brazil

来源：

CHAOS SOLITONS & FRACTALS | 2025年 / 194卷

关键词：

Energy harvesting; Piezoelectric; Cantilever beam; Crisis; Aerodynamic force; CANTILEVER BEAM;

D O I：

10.1016/j.chaos.2025.116200

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The study of wind-induced piezoelectric energy harvesting is carried out in this work. The energy harvesting device consists of a cantilever beam with a tip mass. This tip mass is subjected to the action of a wind whose speed has a steady part and a sinusoidal fluctuation. The Euler-Bernoulli beam theory associated with Kirchhoff's laws allows to obtain the electromechanical equations describing the dynamics of the system. The results show an increase in electrical power with the amplitude of fluctuations in wind speed, as well as with the increase in the tip mass. This fluctuation also allows to obtain a wide operational frequency band. In addition, the increase in the intensity of the fluctuation is accompanied by the appearance of chaotic behaviors, crisis and intermittency phenomena.

引用

页数：13

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