Dynamic Characteristics of Cylindrical Composite Panels with Co-cured and Constrained Viscoelastic Layers
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In this paper, the effect of transversely shear deformation and material degradation of viscoelastic layers is investigated using the finite element method based on the layerwise shell theory.Abstract:
Dynamic characteristics of cylindrical composite panels with co-cured and constrained viscoelastic layers are investigated using the finite element method based on the layerwise shell theory. The natural frequencies, loss factors and frequency response functions of cylindrical viscoelastic composites are computed considering the effect of transversely shear deformation and material degradation of viscoelastic layers. Various damping characteristics for unconstrained layer damping, constrained layer damping, and symmetrically co-cured laminates are compared with an original base panel in view of damping efficiency. The layerwise in-plane displacements and shear deformations greatly influence vibration and damping characteristics of the hybrid composite panels. Also, the present results show that it is very important to consider the variation of damping properties according to exciting frequency and environmental temperature for the accurate damping evaluation of cylindrical hybrid composite panels with viscoelastic damping layers.read more
Citations
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Recent research advances on the dynamic analysis of composite shells: 2000-2009
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Aeroelastic characteristics of cylindrical hybrid composite panels with viscoelastic damping treatments
TL;DR: In this paper, the effects of transverse shear deformation on cylindrical composite panels with structural damping treatments have been analyzed using the finite element method based on the zig-zag layerwise shell theory.
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Dynamic characteristics of cylindrical hybrid panels containing viscoelastic layer based on layerwise mechanics
TL;DR: In this paper, a viscoelastic damping model of cylindrical hybrid panels with co-cured, free and constrained layers was developed and investigated by using the refined finite element method based on the layerwise shell theory.
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Nonlinear flutter of aerothermally buckled composite shells with damping treatments
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Efficient prediction of the response of layered shells by a dynamic stiffness approach
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References
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Amr M. Baz,T. Chen +1 more
TL;DR: In this paper, a distributed-parameter modeling of thin cylindrical shells which are fully treated with active constrained layer damping (ACLD) is presented, and a globally stable boundary control strategy is developed to damp out the vibration of the shell/ACLD system.
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Lin-Hung Chen,Shyh-Chin Huang +1 more
TL;DR: In this article, the damping effects of constrained layer damping treatment of strip type on a cylindrical shell are investigated using a thin shell theory in conjunction with the Donnell-Mushtari-Vlasov assumptions.
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Dynamic Characteristics of Specialty Composite Structures with Embedded Damping Layers
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