Energy Harvesting From Vibrations With a Nonlinear Oscillator
Energy Harvesting From Vibrations With a Nonlinear Oscillator
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DOI：
10.1115/1.4000809
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发表时间：
2010-04-01
影响因子：
1.7
通讯作者：
Clare, Lindsay R.
中科院分区：
文献类型：
--
作者：
Barton, David A. W.;Burrow, Stephen G.;Clare, Lindsay R.
本文提出了一种具有宽谐振响应的非线性电磁能量收集装置。非线性是由磁铁与铁芯定子结合的特殊排列产生的。我们展示了系统在纯音激励和窄带随机激励下的谐振响应。除了主共振外，我们还研究了收割机的超谐波共振，并表明相应的机械上变频激励频率可能对能量收集有用。采用duffing型方程对收割机进行了建模，并与实验数据进行了比较。(DOI: 10.1115/1.4000809)
In this paper, we present a nonlinear electromagnetic energy harvesting device that has a broadly resonant response. The nonlinearity is generated by a particular arrangement of magnets in conjunction with an iron-cored stator. We show the resonant response of the system to both pure-tone excitation and narrow-band random excitation. In addition to the primary resonance, the superharmonic resonances of the harvester are also investigated and we show that the corresponding mechanical upconversion of the excitation frequency may be useful for energy harvesting. The harvester is modeled using a Duffing-type equation and the results are compared with the experimental data. [DOI: 10.1115/1.4000809]