Nonlinear vibration and instability analysis of functionally graded-CNT-reinforced cylindrical shells conveying viscous fluid resting on orthotropic Pasternak medium

چکیده مقاله

In this study, nonlinear vibration and instability of embedded temperature-dependent cylindrical shell conveying viscous fluid resting on temperature-dependent orthotropic Pasternak medium are investigated. The equivalent material properties of nanocomposite are estimated using rule of mixture. Both cases of uniform distribution (UD) and functionally graded (FG) distribution patterns of reinforcements are considered. Based on orthotropic Mindlin shell theory, the governing equations are derived. Generalized differential quadrature method (GDQM) is applied for obtaining the frequency and critical fluid velocity of system. The effects of different parameters such as distribution type of SWCNTs, volume fractions of SWCNTs and Pasternak medium are discussed.