Forced vibration of two coupled carbon nanotubes conveying lagged moving nano-particles

The transverse deflections of the nano-tubes are important issues in engineering applications. However, the researches on the deflection suppression are still insufficient. This paper focused on the investigation of the transverse vibration of double carbon-nano-tubes (DCNTs) which were coupled through elastic medium. Both tubes were conveying moving nano-particles and their ends were simply supported. The system equations were discretized by applying Galerkin expansion method, and numerical solutions were obtained. Several system parameters were studied to investigate the dynamics of the tubes. The results indicated that, because of the lag, the maximum transverse deflections of both coupled tubes can be reduced.