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Free vibration characteristics of periodically stiffened panels with damped stringers
Natrajan Ganesan
Published in
1984
Volume: 96
   
Issue: 1
Pages: 55 - 68
Abstract
Free vibration characteristics of a periodically stiffened panel with unconstrained viscoelastic damping layers applied to the flanges of the stringers are analyzed by using the wave propagation approach. Periodic structure theory in conjunction with the concept of damped forced waves is used in the determination of resonant frequencies and the associated loss factors of the composite structure. The complex nature of the rotational and transverse stiffnesses of the stringers is taken into consideration in the analysis. Numerical results showing the effect of the geometric and material properties of the damping layer treatment on the resonant frequencies and loss factors of the composite panel are presented. © 1984.
About the journal
JournalJournal of Sound and Vibration
ISSN0022460X
Open AccessNo
Concepts (5)
  •  related image
    Structural analysis - mathematical models
  •  related image
    DAMPED STRINGERS
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    Free vibrations
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    PERIODICALLY STIFFENED PANELS
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    Structural panels