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 variables on the stability of the shell are studied and the results are investigated.
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Recommended by Associate Editor Junhong Park
Mohammad Sahebnasagh received his B.Sc. in Mechanical Engineering from the Iran University of Science & Technology, Iran in 2008. He obtained his M.Sc. from the University of Tehran, Iran in 2011. He is currently a Ph.D student at Mechanical Engineering of University of Tehran, Iran. His areas of research interest include dynamics, vibrations and control, rotating machinery, and smart structures.
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Sahebnasagh, M., Nikkhah-Bahrami, M. & Firouz-Abadi, R. Stability analysis of whirling composite shells partially filled with two liquid phases. J Mech Sci Technol 31, 2117–2127 (2017). https://doi.org/10.1007/s12206-017-0408-6
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DOI: https://doi.org/10.1007/s12206-017-0408-6