增强振动能量收集器非线性磁拨的方法

IF 1.9 3区工程技术 Q3 MECHANICS

Meccanica Pub Date : 2024-08-02 DOI:10.1007/s11012-024-01856-5

Michele Rosso, Simone Cuccurullo, Filippo Pietro Perli, Federico Maspero, Alberto Corigliano, Raffaele Ardito

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引用次数: 0

摘要

在这项工作中，介绍了一种改善压电能量收集器频率上变频的磁拨技术。该技术涉及主磁体上极化方向相反的钕铁硼合金屏蔽磁体。在计算和实验层面对这一现象进行了研究。随后，对一个中尺度压电能量收集器进行了模拟，结果表明，与传统的弹拨法（即无屏蔽）相比，如果磁体被屏蔽，增益可达 17 倍。该技术在低速和低频振动能量收集以及执行和传感领域有着有益的应用和优势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A method to enhance the nonlinear magnetic plucking for vibration energy harvesters

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A method to enhance the nonlinear magnetic plucking for vibration energy harvesters

In this work, a technique to improve the magnetic plucking for frequency up-conversion in piezoelectric energy harvesters is presented. The technique involves shielded magnets with Neodymium-iron-boron alloy polarized in the opposite direction on a main magnet. The phenomenon is investigated both at the computational and at the experimental level. Subsequently, simulations on a mesoscale piezoelectric energy harvester are presented which demonstrate a gain of 17 times if the magnets are shielded in comparison with the classical plucking (i.e. without shielding). The technique finds useful applications and benefits in the field of low-speed and low-frequency vibration energy harvesting, as well as in actuation and sensing.

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来源期刊

Meccanica 物理-力学

CiteScore

4.70

自引率

3.70%

发文量

151

审稿时长

7 months

期刊介绍： Meccanica focuses on the methodological framework shared by mechanical scientists when addressing theoretical or applied problems. Original papers address various aspects of mechanical and mathematical modeling, of solution, as well as of analysis of system behavior. The journal explores fundamental and applications issues in established areas of mechanics research as well as in emerging fields; contemporary research on general mechanics, solid and structural mechanics, fluid mechanics, and mechanics of machines; interdisciplinary fields between mechanics and other mathematical and engineering sciences; interaction of mechanics with dynamical systems, advanced materials, control and computation; electromechanics; biomechanics. Articles include full length papers; topical overviews; brief notes; discussions and comments on published papers; book reviews; and an international calendar of conferences. Meccanica, the official journal of the Italian Association of Theoretical and Applied Mechanics, was established in 1966.