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Vibrating Beam With Spatially Periodic StiffnessReport presents theoretical analysis of vibrations of simply supported beam, bending stiffness varying about steady value, sinusoidally with position along length. Problem of practical importance because related to vibrations of twisted-pair electric-power transmission lines. Twists promote nonuniform shedding of vortexes and prevents resonant accumulation of vibrational energy from wind.
Document ID
19890000414
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Townsend, John S.
(NASA Marshall Space Flight Center, Huntsville, AL.)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 8
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
MFS-27202
Accession Number
89B10414
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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