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TECHNICAL BRIEFS

Vibration of Beams and Plate Strips With Three-Dimensional Flexibility

[+] Author and Article Information
Manuel Stein

Structural Mechanics Division, NASA Langley Research Center, Hampton, Va. 23665

J. Appl. Mech 56(1), 228-231 (Mar 01, 1989) (4 pages) doi:10.1115/1.3176054 History: Received November 10, 1987; Revised April 04, 1988; Online July 21, 2009

Abstract

Studies making use of higher vibration modes and frequencies have indicated a need for a more accurate beam theory. Equations of motion are developed here that give a more accurate representation of the dynamic behaivor of a beam than conventional beam theory. Results are obtained using these equations for the natural vibrations of simply-supported aluminum beams of rectangular cross-sections. These results are compared to results from conventional beam theory, and they are examined to identify where various effects are important.

Copyright © 1989 by ASME
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