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中文摘要：
采用数值方法研究了基于双壁碳纳米管的纳机电系统在周期性简谐驱动力作用下实现稳定振动的条件。确定了获得持久稳定的振动的系统和控制力参数。计算和分析了双壁碳纳米管的操作特性。结果表明,通过选择合适的驱动振幅和频率,能够实现双壁碳纳米管的持久稳定振动。该方法对于进一步研究基于碳纳米管的纳机电系统的设计有重要的参考价值。
英文摘要：
A numerical method was used to investigate the conditions to sustain the stable motion of nanoelectromechanical systems（NEMS）based on carbon nanotubes under periodical harmonic driving force.We determined the parameters of the system and control force which allow obtaining the sustained stable oscillation at a constant frequency.The operating characteristics of the double-walled carbon nanotube oscillators were calculated and analyzed.It is shown that the sustained stable motion of the oscillators can be realized by properly choosing the amplitude and the initial phase of the periodical harmonic driving force.The method reported here is believed to have important implications in carbon nanotube-based NEMS design.
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