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首页> 外文期刊>Nanotechnology >Controllable nanoscale rotating actuator system based on carbon nanotube and graphene
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Controllable nanoscale rotating actuator system based on carbon nanotube and graphene

机译：基于碳纳米管和石墨烯的可控纳米级旋转致动器系统

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摘要

A controllable nanoscale rotating actuator system consisting of a double carbon nanotube and graphene driven by a temperature gradient is proposed, and its rotating dynamics performance and driving mechanism are investigated through molecular dynamics simulations. The outer tube exhibits stable pure rotation with certain orientation under temperature gradient and the steady rotational speed rises as the temperature gradient increases. It reveals that the driving torque is caused by the difference of atomic van der Waals potentials due to the temperature gradient and geometrical features of carbon nanotube. A theoretical model for driving torque is established based on lattice dynamics theory and its predicted results agree well with molecular dynamics simulations. Further discussion is taken according to the theoretical model. The work in this study would be a guide for design and application of controllable nanoscale rotating devices based on carbon nanotubes and graphene.
机译：提出了由温度梯度驱动的由双碳纳米管和石墨烯组成的可控纳米级旋转致动器系统，并通过分子动力学模拟研究了其旋转动力学性能和驱动机理。在温度梯度下，外管表现出一定方向的稳定的纯旋转，并且随着温度梯度的增加，稳定的转速增加。结果表明，驱动扭矩是由碳纳米管的温度梯度和几何特征引起的范德华势能的差异引起的。基于晶格动力学理论建立了驱动转矩理论模型，其预测结果与分子动力学模拟吻合良好。根据理论模型进行进一步讨论。这项研究的工作将为基于碳纳米管和石墨烯的可控纳米级旋转装置的设计和应用提供指导。

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