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THE HARMONIC RESPONSE OF UNIFORM BEAMS ON MULTIPLE LINEAR SUPPORTS - A FLEXURAL WAVE ANALYSIS
Date
1990-09-22
Author
MEAD, DJ
Yaman, Yavuz
Metadata
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A wave approach is developed for the exact analysis of the harmonic response of uniform finite beams on multiple supports. The beam may be excited by single or multi-point harmonic forces or moments; its supports may have general linear characteristics which may include displacement-rotation coupling. Use is made of the harmonic response function for an infinite beam subjected to a single-point harmonic force or moment. The unknowns of the finite beam problem are the support reaction forces/moments and the magnitudes of four waves reflected from the ends of the beam. Equations are presented for the response of a single-bay beam with various support conditions and subjected to single-point harmonic excitation. The same equations, but with the simple addition of further straightforward terms on the right-hand side, are used for multi-point excitation. The effects of damping are easily incorporated. Equations for multi-supported beams are also presented together with illustrative computed frequency-response curves. Natural frequencies have been calculated by finding resonance frequencies of very lightly damped beams. These compare impeccably with the results of other investigators.
Subject Keywords
Mechanical Engineering
,
Acoustics and Ultrasonics
,
Mechanics of Materials
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/38132
Journal
JOURNAL OF SOUND AND VIBRATION
DOI
https://doi.org/10.1016/0022-460x(90)90639-h
Collections
Department of Aerospace Engineering, Article
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BibTeX
D. MEAD and Y. Yaman, “THE HARMONIC RESPONSE OF UNIFORM BEAMS ON MULTIPLE LINEAR SUPPORTS - A FLEXURAL WAVE ANALYSIS,”
JOURNAL OF SOUND AND VIBRATION
, vol. 141, no. 3, pp. 465–484, 1990, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38132.