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Stability analysis of whirling composite shells partially filled with two liquid phases
, Article Journal of Mechanical Science and Technology ; Volume 31, Issue 5 , 2017 , Pages 2117-2127 ; 1738494X (ISSN) ; Nikkhah Bahrami, M ; Firouz Abadi, R ; Sharif University of Technology
Abstract
In this paper, the stability of whirling composite cylindrical shells partially filled with two liquid phases is studied. Using the first-order shear shell theory, the structural dynamics of the shell is modeled and based on the Navier-Stokes equations for ideal liquid, a 2D model is developed for liquid motion at each section of the cylinder. In steady state condition, liquids are supposed to locate according to mass density. In this study, the thick shells are investigated. Using boundary conditions between liquids, the model of coupled fluid-structure system is obtained. This coupled fluid-structure model is employed to determine the critical speed of the system. The effects of the main...