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Dynamic characteristics of a vibrating beam with periodic variation in bending stiffness

Author
Townsend, John S.
Published
Apr 1, 1987.
Physical Description
1 electronic document
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
A detailed dynamic analysis is performed of a vibrating beam with bending stiffness periodic in the spatial coordinate. Using a perturbation expansion technique the free vibration solution is obtained in a closed-form, and the effects of system parameters on beam response are explored. It is found that periodic stiffness acts to modulate the modal displacements from the characteristic shape of a simple sine wave. The results are verified by a finite element solution and through experimental testing.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19870013293.
Accession ID: 87N22726.
Structural Dynamics and Control Interaction of Flexible Structures; p 595-624.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15699148