Development and performance evaluation of an electromagnetic transducer with a tuned variable inerter
Development and performance evaluation of an electromagnetic transducer with a tuned variable inerter
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DOI：
10.1177/10775463221074078
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发表时间：
2022-03
影响因子：
2.8
通讯作者：
Minoru Takino;Takehiko Asai
中科院分区：
文献类型：
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作者：
Minoru Takino;Takehiko Asai
本文提出了一种新型的振动能量收集装置采用调谐可变惯性。惯性器是一种通过滚珠丝杠或齿轮齿条机构产生放大惯性质量效应的装置。最初，惯性器是为汽车悬架而开发的，迄今为止，各种惯性器技术不仅在结构控制方面而且在能量收集方面都得到了广泛的研究。作为这种装置的一个例子，已经提出了调谐惯性质量电磁换能器，并且其作为能量收集装置的有效性已经被示出。然而，在同一时间，以前的研究表明，进一步的性能改善是可能的，如果惯性是可变的，根据扰动条件的变化。因此，在本研究中，一个原型，可以改变的值的惯性器的设计，并开发了一个系统，改变惯性器的基础上在线检测的主导频率通过快速傅立叶变换的测量数据。然后，通过实验研究表明，与现有的调谐惯性质量电磁传感器相比，该装置可以提高具有不同主频的干扰的能量收集性能。
This paper proposes a novel vibration energy harvesting device employing a tuned variable inerter. The inerter is a device that can produce an amplified inertial mass effect by ball screw or rack and pinion mechanisms. Originally, the inerter was developed for suspensions in automobiles, and various kinds of inerter technologies have been widely studied not only in structural control but also in energy harvesting so far. As an example of such devices, the tuned inertial mass electromagnetic transducer has been proposed, and its effectiveness as an energy harvesting device has been shown already. However, at the same time, previous studies suggested that further performance improvement is possible if the inerter is variable according to changes in disturbance conditions. Thus, in this research, a prototype which can change the value of the inerter is designed, and a system to change the inerter based on the dominant frequency detected online by the fast Fourier transform of the measured data is developed. Then, it is shown through experimental studies that the proposed device can improve the energy harvesting performance compared to the existing tuned inertial mass electromagnetic transducer for disturbances with varying dominant frequencies.