Fluid-Structure Coupling Between a Finite Cylinder and a Confined Fluid

[+] Author and Article Information
G. Garner

The Charles Stark Draper Laboratory, 555 Technology Square, MS 60, Cambridge, Mass. 02139

S. Chandra

Northeast Utilities, P.O. Box 270, Hartford, Conn. 06101

J. Appl. Mech 51(4), 857-862 (Dec 01, 1984) (6 pages) doi:10.1115/1.3167737 History: Received January 01, 1982; Revised April 01, 1984; Online July 21, 2009


The dynamic behavior of a finite length cylindrical rod in a fluid filled annulus is considered. The fluid and structure equations are solved simultaneously, with fluid-structure coupling accounted for. Coupled mode shapes and natural frequencies are obtained for various cases. It is found that for short lengths and/or higher modes, the effect of the fluid on the cylinder motion diminishes compared to the infinite cylinder case. In addition, coupled and in-vacuum mode shapes can differ in certain cases.

Copyright © 1984 by ASME
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