A tristable mechanism for broadband energy harvesting

• Main Authors: Jr-Bau Ye, 葉志寶
• Other Authors: 王東安
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/15543804865577642926

碩士 === 國立中興大學 === 精密工程學系所 === 101 === This article is discussed for tristable mechanism for broadband energy harvesting, and the energy captured from tristable mechanism converting vibration energy, generated by environmental oscillations, into electrical energy by electromagnetic induction. The shuttle block and guide beam of mechanism can be regarded as masses, while the inner and outer curved beams can be regarded as springs, forming two superimposed vibration units, and coupled with the force equilibrium characteristic of mechanism causing action hysteresis results in non-linear vibration. These compound vibration models multiplying induced mechanism with wide resonance band called broadband. General energy harvesters are mostly narrow bandwidth, and the applicable occasions are limited. Hence, proposing mechanism of broadband energy harvesting enhances the range of applications. This study focuses on verifying whether tristable mechanism has broadband characteristic, and confirms this argument by the simulation, analysis and experimental measurement.