Open AccessTheoretical and Experimental Investigation of a Multi-stable Energy Harvester for Rotation Motion
Author(s) -
Xutao Mei,
Shengxi Zhou,
Tsutomu Kaizuka,
Kimihiko Nakano
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1407/1/012130
Subject(s) - rotation (mathematics) , energy harvesting , energy (signal processing) , rotation around a fixed axis , nonlinear system , power (physics) , control theory (sociology) , motion (physics) , broadband , computer science , acoustics , physics , engineering , mechanical engineering , classical mechanics , artificial intelligence , telecommunications , control (management) , quantum mechanics
Recently, different kinds of nonlinear energy harvesters in rotation environments were designed to achieve high-efficiency broadband energy harvester for low-level excitations. However, a mathematical model of the multi-stable energy harvester in rotation motion is not complete, and its dynamic performance remains experimentally uninvestigated due to the difficulty of the sensor layout in rotation motion. Based on these issues, in this paper, a multi-stable energy harvester used in rotation motion is proposed and a related mathematical model has been processed by Lagrangian equation to describe the dynamic performance and the output power of the harvester. Additionally, corresponding experiments between the bi-stable energy harvester (BEH) and the tri-stable energy harvester (TEH) are carried out to validate their performance under different rotation speeds. The experimental results demonstrate that the TEH can obtain high-efficiency energy harvesting performance in low rotation speed than the BEH.