Header menu link for other important links
X
Vibration and acoustic response of a composite plate with inherent material damping in a thermal environment
Natrajan Ganesan,
Published in
2009
Volume: 320
   
Issue: 1-2
Pages: 322 - 338
Abstract
This paper presents numerical studies on the vibration and acoustic response characteristics of a fiber-reinforced composite plate in a thermal environment by considering the inherent material damping property of the composite material. Initially the critical buckling temperature is obtained, followed by free and forced vibration analyses considering the pre-stress due to the imposed thermal environment. The vibration response predicted is then used to compute the sound radiation. The critical buckling temperature and vibration response are obtained using the finite element method based on the Classical Laminate Plate Theory (CLPT) while sound radiation characteristics are obtained using a coupled FEM/BEM technique. It is found that the vibration response of the structure reduces with an increase in uniform temperature rise for both Glass Epoxy and PEEK/IM7 materials, but the overall sound radiation of the plate reduces only marginally due to interaction between reduced stiffness and enhanced damping. © 2008 Elsevier Ltd. All rights reserved.
About the journal
JournalJournal of Sound and Vibration
ISSN0022460X
Open AccessNo
Concepts (24)
  •  related image
    ACOUSTIC GENERATORS
  •  related image
    Acoustic properties
  •  related image
    Acoustic wave propagation
  •  related image
    Acoustic wave scattering
  •  related image
    Acoustics
  •  related image
    Damping
  •  related image
    Finite element method
  •  related image
    Lattice vibrations
  •  related image
    Numerical analysis
  •  related image
    ACOUSTIC RESPONSES
  •  related image
    BUCKLING TEMPERATURES
  •  related image
    Composite plates
  •  related image
    FIBER-REINFORCED COMPOSITES
  •  related image
    FREE AND FORCED VIBRATION ANALYSES
  •  related image
    GLASS EPOXIES
  •  related image
    LAMINATE PLATE THEORIES
  •  related image
    Material damping
  •  related image
    MATERIAL DAMPING PROPERTIES
  •  related image
    Numerical studies
  •  related image
    REDUCED STIFFNESSES
  •  related image
    SOUND RADIATIONS
  •  related image
    UNIFORM TEMPERATURES
  •  related image
    VIBRATION RESPONSES
  •  related image
    Plates (structural components)