Enhancing Electrical Generation Efficiency through Parametrical Excitation and Slapping Force in Nonlinear Elastic Beams for Vibration Energy Harvesting
學年 112
學期 1
出版（發表）日期 2023-09-01
作品名稱 Enhancing Electrical Generation Efficiency through Parametrical Excitation and Slapping Force in Nonlinear Elastic Beams for Vibration Energy Harvesting
作品名稱（其他語言）
著者 Wang, Yi-ren
單位
出版者
著錄名稱、卷期、頁數 Sensors 2023 23(17),　7610
摘要 This study aims to enhance conventional vibration energy harvesting systems (VEHs) by repositioning the piezoelectric patch (PZT) in the middle of a fixed–fixed elastic steel sheet instead of the root, as is commonly the case. The system is subjected to an axial simple harmonic force at one end to induce transversal vibration and deformation. To further improve power conversion, a baffle is strategically installed at the point of maximum deflection, introducing a slapping force to augment electrical energy harvesting. Employing the theory of nonlinear beams, the equation of motion for this nonlinear elastic beam is derived, and the method of multiple scales (MOMS) is used to analyze the phenomenon of parametric excitation. This study demonstrates through experiments and theoretical analysis that the second mode yields better power generation benefits than the first mode. Additionally, the voltage generation benefits of the enhanced system with the added baffle (slapping force) surpass those of traditional VEH systems. Overall, the proposed model proves feasible and holds promising potential for efficient vibration energy harvesting applications in various industrial sectors.
關鍵字 energy harvester;parametric excitation;nonlinear vibration;method of multiple scales
語言 en_US
ISSN 1424-8220
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Yi-Ren Wang
審稿制度 是
國別 CHE
公開徵稿
出版型式 ,電子版
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