Tóm tắt

In this study, non-linear thermal-mechanical stability and vibration analyses of different end-shaped single-walledrncarbon nanotube conveying viscous nano-magnetic fluid embedded in non-linear visco-elastic foundation underrnthe influence of magnetic fields are presented. The development of the equation of motion was based on EulerBernoulli theory, Hamilton principle and nonlocal elasticity theory. The results of the analytical solutions usingrnGalerkin decomposition differential transform method (GDDTM) were validated with existing experimental results. From the parametric studies, it was shown that decreasing the temperature difference as well as increasingrnthe downstream angle decreased the system's stability for pre-bifurcation analysis but increased stability of thernsystem for post bifurcation analysis. Also, the results obtained from the dynamic behaviour of the system indicated that the magnetic effect had an attenuating impact of about 45% on the system's response at any mode andrnfor any boundary condition considered. It is hoped that this work will enhance the design and optimization ofrnnano-devices with I, V, Y, L, K and T-shaped junctions under the influence of thermal-magneto-mechanical flow induced vibration.