Dynamic Stability of Double-Walled Carbon Nanotubes
D. Lolov, S. Lilkova-Markova (DOI: 10.24874/jsscm.2018.12.01.01)
This paper investigates the stability of a simply supported DWCNT conveying fluid inside itsThis paper investigates the stability of a simply supported DWCNT conveying fluid inside itsinnermost tube. The van der Waals interaction between the adjacent carbon layers is taken intoaccount. The Euler elastic beam model is employed in order to study the dynamic stabilitybehaviour of the system. The aim is to analyse the influence of the density of the conveyed fluid,the length of the tube and the dimensions of its cross section on the critical flow velocity of thefluid in the pipe under consideration and to draw conclusions about the stability of the system.This problem is approached numerically using the spectral Galerkin method. Results reveal thatall above mentioned parameters have a significant effect on the stability of the nanotube.