Analysis of a wind-driven power generation system with root slapping mechanism

doi:10.3390/app14020482

淡江大學機構典藏 > 工學院 > 航空太空工程學系暨研究所 > 期刊論文 > Item 987654321/126901

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题名:	Analysis of a wind-driven power generation system with root slapping mechanism
作者:	Wang, Yi-ren;Chang, Jin-wei;Lin, Chen-yu
关键词:	nonlinear vibrations;Method of Multiple Scales;energy harvester;piezoelectric patch
日期:	2024-01-05
上传时间:	2025-03-20 09:29:51 (UTC+8)
出版者:	MDPI
摘要:	This study introduces a groundbreaking slap-type Vibration Energy Harvesting (VEH) system, leveraging a rotating shaft with magnets to induce vibrations in an adjacent elastic steel sheet through magnetic repulsion. This unique design causes the elastic sheet to vibrate, initiating the oscillation of a seesaw-type rigid plate lever. The lever then slaps a piezoelectric patch (PZT) at the elastic steel sheet’s root, converting vibrations into electrical energy. Notably, the design enables the PZT to withstand deformation and flapping forces simultaneously, enhancing power conversion efficiency. The driving force for the rotating shaft is harnessed from the downstream flow field generated by moving objects like rotorcraft, fixed-wing aircraft, motorcycles, and bicycles. Beyond conventional vibration energy harvesting, this design taps into additional electric energy generated by the PZT’s slapping force. This study includes mathematical modeling of nonlinear elastic beams, utilizing the Method of Multiple Scales (MOMS) for in-depth vibration mode analysis. Experimental validation ensures the convergence of theory and practice, confirming the feasibility and superior voltage generation efficiency of this slap-type VEH concept compared to traditional VEH systems.
關聯:	Applied Sciences 14(2),　　482
DOI:	10.3390/app14020482
显示于类别:	[航空太空工程學系暨研究所] 期刊論文

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