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Finite element free vibration analysis of damped stiffened panels
Natrajan Ganesan
Published in
1986
Volume: 24
   
Issue: 3
Pages: 485 - 489
Abstract
Free vibration characleristics of a damped stiffened panel with applied viscoelastic damping on the flanges of the stiffeners are studied using finite element method. The complex nature of the rotational and transverse stiffnesses of the stringers is taken into consideration while deriving the stiffness and mass matrices of the damped stiffener element. The finite element method consists of representing the panel by rectangular plate elements of 12 d.o.f. and the stiffeners by beam elements of 8 d.o.f. which allow for bending, torsional and warping effects. 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. © 1986.
About the journal
JournalComputers and Structures
ISSN00457949
Open AccessNo
Concepts (6)
  •  related image
    COMPOSITE MATERIALS - VIBRATIONS
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    Mathematical techniques - finite element method
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    VIBRATIONS - DAMPING
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    DAMPED STIFFENED PANELS
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    Free vibration analysis
  •  related image
    Structural panels