Nonlinear time-varying potential bistable energy harvesting from human motion

被引：136
|
作者：
Cao, Junyi [1 ]
Wang, Wei [1 ]
Zhou, Shengxi [1 ,2 ]
Inman, Daniel J. [2 ]
Lin, Jing [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China
[2] Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA
来源：
APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 14期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.4932947
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A theoretical and experimental investigation into nonlinear bistable energy harvesting with time-varying potential energy is presented. The motivation for examining time-varying potentials comes from the desire to harvest energy from human motion. Time-varying potential energy function of bistable oscillator with respect to the swing angle are established to derive the governing electromechanical model for harvesting vibration energy from the swaying motion during human walking or running. Numerical simulations show good agreement with the experimental potential energy function under different swing angles. Various motion speed treadmill tests are performed to demonstrate the advantage of time-varying bistable harvesters over linear and monostable ones in harvesting energy from human motion. (C) 2015 AIP Publishing LLC.
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页数：5
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