A map between excitation magnitude and critical stable temperature for screwing oscillators built on double-walled nanotubes

Abstract

Abstract The influence of excitation amplitude and temperature on oscillation behavior of a novel oscillator is investigated via the classic molecular dynamics (MD) method. The oscillator is built on carbon@MoS2 heterogeneous nanotubes (CNT@MST) and has dual-signal screwing output. A map between the excitation magnitude and the critical stable temperature is generated to show the maximum service temperature at which the inner tube can perform a stable screwing oscillation under different pull-rotation excitations. The results indicate that, under the same pull-rotation excitation, the CNT@MST screwing oscillators exhibit lower energy dissipation, higher axial oscillation frequency and higher stable temperature than those from the traditional CNT@CNT screwing oscillators with the same inner tube.