Dynamic Stability of Isotropic or Composite-Material Cylindrical Shells Containing Swirling Fluid Flow

[+] Author and Article Information
T. L. C. Chen

Mechanical Engineering, The University of Oklahoma, Norman, Okla.

C. W. Bert

School of Aerospace, Mechanical and Nuclear Engineering, The University of Oklahoma, Norman, Okla.

J. Appl. Mech 44(1), 112-116 (Mar 01, 1977) (5 pages) doi:10.1115/1.3423973 History: Received March 01, 1976; Revised June 01, 1976; Online July 12, 2010


A linear stability analysis is presented for a thin-walled, circular cylindrical shell of orthotropic material conveying a swirling flow. Shell motion is modeled by using the dynamic orthotropic version of the Sanders shell theory and fluid forces are described by inviscid, incompressible flow theory. The critical flow velocities are determined for piping made of composite and isotropic materials conveying swirling water. Fluid rotation strongly degrades the stability of the shell/fluid system, i.e. increasing the fluid rotating speed severely decreases the critical flow velocity.

Copyright © 1977 by ASME
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