运用分子动力学模拟方法,模拟了三种碳纳米管振荡器内管的振荡运动.结果显示:振荡器的内管越短,振荡的频率越大,且受到的轴向回复力的波动也越大.内管在沿着管轴振荡的同时,还绕着管轴旋转,转动的动能有明显涨落并与内管管长密切相关.该研究对于开发碳纳米管的相关应用技术有指导意义. The molecular dynamics simulations were used to simulate the oscillatory motion of the inner tube of the three kinds of carbon nanotube oscillators.The results showed that the shorter the inner tube of the oscillators, the greater the frequency of oscillation and the more fluctuating the axial restoring force The inner tube oscillates along the tube axis and also rotates around the tube axis, the kinetic energy of the rotation has a significant fluctuation and is closely related to the length of the inner tube. This study is instructive for the development of relevant applications of carbon nanotubes .