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Energy recovery from a pendulum tuned mass damper with two independent harvesting sources
International Journal of Mechanical Sciences ( IF 7.3 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.ijmecsci.2020.105568
Krzysztof Kecik , Andrzej Mitura

Abstract This paper focuses on vibration mitigation and energy harvesting in a coupled oscillator-pendulum system. Generally, the concept of a vibration-based energy harvester is similar to a vibration absorber, it is naturally desired to use the same system for simultaneous vibration reduction and energy recovery. However, a problem of whether or not vibration mitigation and energy recovery is contradictory has arisen, based mainly on the intuition that the former tries to reduce vibration while the latter profits from large vibrations. In the paper, the pendulum construction is modified by the use of two independent electromagnetic harvester systems. The first harvester is based on oscillation of a levitating magnet in a coil. The second device is a DC electrical motor mounted in the pendulum’s pivot. An effort is made to obtain comparison of an energy harvesting/vibration mitigation effectiveness of both harvesters. We propose new indicators to find a consistency between vibration suppression and energy recovery, and compliance regions were detected. Finally, we confirm some results by the means of a comparison with an experiment. The study gives an answer about effectiveness of the both harvesters and suggests that the proposed concept can be useful in practice.

中文翻译:

具有两个独立收集源的钟摆调谐质量阻尼器的能量回收

摘要 本文重点讨论耦合振荡器-摆系统中的减振和能量收集。通常,基于振动的能量收集器的概念类似于振动吸收器,自然希望使用相同的系统同时进行减振和能量回收。然而,出现了减振和能量回收是否矛盾的问题,主要是基于前者试图减少振动而后者从大振动中获利的直觉。在本文中,钟摆结构通过使用两个独立的电磁采集器系统进行了修改。第一个收割机基于线圈中悬浮磁铁的振荡。第二个装置是安装在摆锤枢轴上的直流电动机。努力获得两种采集器的能量采集/减振效果的比较。我们提出了新的指标来寻找振动抑制和能量回收之间的一致性,并检测到合规区域。最后,我们通过与实验的比较来确认一些结果。该研究给出了关于两种收割机有效性的答案,并表明所提出的概念在实践中是有用的。
更新日期:2020-05-01
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