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Nano-scale energy harvester of piezoelectric/piezomagnetic structures with torsional mode

机译：压电/压电结构扭转模式的纳米级能量收集器

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摘要

This work presents a nano-scale cylindrical shell serving as an energy harvester with piezoelectric/piezomagnetic materials. Based on the torsional mode, the surface effects on the properties of the energy harvester are investigated. The results show that the capability of the energy harvester can be enlarged by adjusting the surface material constants. The power density will grow with the increasing of the residual surface stress. Moreover, the performance of the energy harvester can be improved by reducing the total height of the cylindrical shell. The larger height ratio of the piezoelectric to piezomagnetic materials will also lead to greater power density. This paper presents that the energy harvester can be made of nano-scale composite structures, which would be helpful for its application to nano technology.
机译：这项工作提出了一种纳米级圆柱壳，可作为压电/压电材料的能量收集器。基于扭转模式，研究了表面对能量收集器性能的影响。结果表明，通过调节表面材料常数可以扩大能量收集器的能力。功率密度将随着残余表面应力的增加而增加。此外，可以通过减小圆柱形壳体的总高度来提高能量收集器的性能。压电材料与压电材料的较高的高度比也将导致较高的功率密度。本文提出能量收集器可以由纳米级复合结构制成，这将有助于其在纳米技术中的应用。

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