Energy Harvesting in a Nonlinear Cantilever Piezoelastic Beam System Excited by Random Vertical Vibrations

被引：13
|
作者：
Borowiec, Marek [1 ]
Litak, Grzegorz [1 ]
Friswell, Michael I. [2 ]
Adhikari, Sondipon [2 ]
机构：
[1] Lublin Univ Technol, Dept Appl Mech, PL-20618 Lublin, Poland
[2] Swansea Univ, Coll Engn, Swansea SA2 8PP, W Glam, Wales
来源：
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS | 2014年 / 14卷 / 08期
关键词：
Mechanical vibration; wideband; energy harvesting; nonlinear; piezoelectric transducer; STOCHASTIC RESONANCE; EXCITATION; DRIVEN; MASS;
D O I：
10.1142/S0219455414400185
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The vertical elastic beam with vertical ambient excitation is proposed as an energy harvester. The beam has a tip mass and piezoelectric patches which transduce the bending strains induced by the stochastic force caused by vertical kinematic forcing into electrical charge. We focus on the region with a fairly large amplitude of voltage output where the beam overcomes the potential barrier. Increasing the noise level allows the transition from single well oscillations to inter-well stochastic jumps with more power generation.
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页数：13
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