Free Vibrations of Longitudinally Stiffened Cylindrical Shells

[+] Author and Article Information
J. T. S. Wang

School of Engineering Science and Mechanics, Georgia Institute of Technology, Atlanta, Ga.

S. A. Rinehart

Xerox Corporation, Rochester, N. Y.

J. Appl. Mech 41(4), 1087-1093 (Dec 01, 1974) (7 pages) doi:10.1115/1.3423439 History: Received July 01, 1973; Revised November 01, 1973; Online July 12, 2010


This study is concerned with the free-vibration characteristics of thin cylindrical shells reinforced by longitudinal stringers for any edge boundary conditions. The structural system is treated as an isotropic cylinder interacting with a set of discrete thin-walled stringers. Frequencies of simply supported shells obtained according to the present analysis compare favorably with Ritz solution and existing experimental data. For mode shapes, the present analysis often yields much better results than Ritz solution. Numerical results for frequencies and mode shapes for clamped-clamped cylindrical shells are included, and frequencies of a shell with very flexible stiffeners compare favorably with frequencies of an unstiffened shell.

Copyright © 1974 by ASME
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