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http://dx.doi.org/10.5050/KSNVN.2008.18.6.654

Flow-induced Vibration of Carbon Nanotubes Conveying Fluid  

Choi, Jong-Woon (충남대학교 대학원 기계공학과)
Gil, Bo-Ramm (충남대학교 대학원 기계공학과)
Song, Oh-Seop (충남대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.6, 2008 , pp. 654-662 More about this Journal
Abstract
In this paper, flow-induced flutter instability of cantilever carbon nanotubes conveying fluid and modelled as a thin-walled beam is investigated. Non-classical effects of transverse shear and rotary inertia are incorporated in this study. The governing equations and the associated boundary conditions are derived through Hamilton's principle. Numerical analysis is performed by using extend Galerkin method which enables us to obtain more exact solutions compared with conventional Galerkin method. Cantilevered carbon nanotubes are damped with decaying amplitude for flow velocity below a certain critical value, however, beyond this critical flow velocity, flutter instability may occur. Variations of critical flow velocity with both radius ratio and length of carbon nanotubes are investigated and pertinent conclusion is outlined.
Keywords
Carbon Nanotube; Flutter; Critical Flow Velocity;
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