Effects of Shearing Loads and In-Plane Boundary Conditions on the Stability of Thin Tubes Conveying Fluid

[+] Author and Article Information
J. Tani, H. Doki

Institute of High Speed Mechanics, Tohoku University, Sendai, Japan

J. Appl. Mech 46(4), 779-783 (Dec 01, 1979) (5 pages) doi:10.1115/1.3424653 History: Received December 01, 1978; Revised April 01, 1979; Online July 12, 2010


The hydroelastic stability of short, simply supported, thin-walled tubes conveying fluid is examined with an emphasis on the effects of shearing loads and in-plane boundary conditions. The Donnell shell equation is used in conjunction with linearized, potential flow theory. The solution is obtained by using Fourier integral theory and Galerkin’s method. It is found that an increase of the shearing load reduces the critical divergence velocity and raises the corresponding number of circumferential waves. A change in the in-plane boundary conditions exerts the significant effect on the critical divergence velocity of short tubes.

Copyright © 1979 by ASME
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