Stationary and Transient Response of Cylindrical Shells Under Random Excitation

[+] Author and Article Information
A. V. Singh

Department of Mechanical Engineering, The University of Western Ontario, London, Ontario, Canada

J. Pressure Vessel Technol 110(2), 205-209 (May 01, 1988) (5 pages) doi:10.1115/1.3265588 History: Received March 03, 1988; Online November 05, 2009


This paper presents the random vibration analysis of a simply supported cylindrical shell under a ring load which is uniform around the circumference. The time history of the excitation is assumed to be a stationary wide-band random process. The finite element method and the condition of symmetry along the length of the cylinder are used to calculate the natural frequencies and associated mode shapes. Maximum values of the mean square displacements and velocities occur at the point of application of the load. It is seen that the transient response of the shell under wide band stationary excitation is nonstationary in the initial stages and approaches the stationary solution for large value of time.

Copyright © 1988 by ASME
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