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The effect of fluid viscosity on coupled tube/fluid vibrations

โœ Scribed by T.T. Yeh; S.S. Chen

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
713 KB
Volume
59
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

This paper presents an analytical study ofcoupled vibration of two coaxial tubes separated by an imcompressible viscous fluid. Tube vibrations are in beam modes and fluid motion is assumed to take place in a plane perpendicular to the axis of the tubes. First, the fluid forces acting on the tubes associated with small tube displacements are obtained in closed form based on the iinearized two-dimensional Navier-Stokes equation. Then free and forced vibrations of the coupled tube/fluid system are analyzed. Finally, numerical results for free vibrations of simply supported tubes are presented for several cases to illustrate the effect of various system parameters.

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