Vibro-acoustic behavior of a multilayered viscoelastic sandwich plate under a thermal environment:

doi:10.1177/1099636211400129

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Vibro-acoustic behavior of a multilayered viscoelastic sandwich plate under a thermal environment:

Journal Article•DOI•

Vibro-acoustic behavior of a multilayered viscoelastic sandwich plate under a thermal environment:

P. Jeyaraj¹, Chandramouli Padmanabhan², N. Ganesan²•Institutions (2)

VIT University¹, Indian Institute of Technology Madras²

12 Jul 2011-Journal of Sandwich Structures and Materials (SAGE Publications)-Vol. 13, Iss: 5, pp 509-537

TL;DR: In this paper, the authors present numerical simulation studies on the vibration and acoustic response characteristics of a multilayered viscoelastic sandwich plate in a thermal environment, where the critical buckling temperature and vibration response were obtained using finite element method while sound radiation characteristics are obtained using boundary element method.

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Abstract: This article presents numerical simulation studies on the vibration and acoustic response characteristics of a multilayered viscoelastic sandwich plate in a thermal environment. Initially the critical buckling temperature is obtained followed by free and forced vibration analyses considering the pre-stress due to the imposed thermal environment in the plate. The vibration response predicted is then used to compute the sound radiation. The critical buckling temperature and vibration response are obtained using finite element method while sound radiation characteristics are obtained using boundary element method. It is found that resonant amplitude of both the vibration and acoustic response decreases with increase in temperature. The influence of core thickness, number of layers, type of thermal field, and type of viscoelastic core material on vibration response sound radiation characteristics are studied in detail.

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Journal Article•DOI•

Sound radiation and transmission loss characteristics of a honeycomb sandwich panel with composite facings: Effect of inherent material damping

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M.P. Arunkumar¹, M. Jagadeesh¹, Jeyaraj Pitchaimani¹, K. V. Gangadharan¹, Lenin Babu Mailan Chinnapandi² - Show less +1 more•Institutions (2)

National Institute of Technology, Karnataka¹, VIT University²

24 Nov 2016-Journal of Sound and Vibration

TL;DR: In this article, the results of numerical studies carried out on vibro-acoustic and sound transmission loss behaviour of aluminium honeycomb core sandwich panel with fibre reinforced plastic facings were presented.

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62 citations

Journal Article•DOI•

Vibro-acoustic response and sound transmission loss characteristics of truss core sandwich panel filled with foam

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M.P. Arunkumar¹, Jeyaraj Pitchaimani², K. V. Gangadharan², M.C. Leninbabu³•Institutions (3)

K L University¹, National Institute of Technology, Karnataka², VIT University³

01 Jul 2018-Aerospace Science and Technology

TL;DR: In this paper, a truss core sandwich panel is filled with polyurethane foam (PUF) to achieve better vibro-acoustic and sound transmission loss characteristics.

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45 citations

Journal Article•DOI•

Buckling and vibro-acoustic response of the clamped composite laminated plate in thermal environment

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Xiangyang Li¹, Kaiping Yu¹, Jingyong Han¹, Haiyang Song¹, Rui Zhao¹ - Show less +1 more•Institutions (1)

Harbin Institute of Technology¹

01 Dec 2016-International Journal of Mechanical Sciences

TL;DR: In this paper, the buckling and vibro-acoustic response of the clamped composite laminated plate excited by a concentrated harmonic force in the thermal environment is analyzed for fully clamped boundary condition.

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43 citations

Journal Article•DOI•

Prediction of acoustic wave transmission features of the multilayered plate constructions: A review:

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Zarastvand¹, M. Ghassabi¹, Roohollah Talebitooti¹•Institutions (1)

Iran University of Science and Technology¹

27 Feb 2021-Journal of Sandwich Structures and Materials

TL;DR: In this article, the authors collected all of the existent papers in the field of acoustic transmission across multilayered plate constructions and proposed a comprehensive source consisting of approximately 410 papers.

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Abstract: This study collects all of the existent papers in the field of acoustic transmission across multilayered plate constructions. Herewith, a comprehensive source is proposed wherein approximately 410 ...

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39 citations

Journal Article•DOI•

Vibration and sound radiation analysis of temperature-dependent porous functionally graded material plates with general boundary conditions

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Kai Zhou¹, Zhenkun Lin¹, Xiuchang Huang¹, Hongxing Hua¹•Institutions (1)

Shanghai Jiao Tong University¹

01 Nov 2019-Applied Acoustics

TL;DR: In this article, the authors investigated the vibration and sound radiation of porous functionally graded material (FGM) plates with temperature gradient along the thickness, and the effects of key parameters including the boundary condition, volume fraction index, thermal environment, temperature dependence of material properties and porosity volume fraction on the structural and acoustic responses of the FGM plate are discussed in detail.

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37 citations

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References

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Journal Article•DOI•

Bending and vibration of multilayer sandwich beams and plates

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T. P. Khatua¹, Y.K. Cheung¹•Institutions (1)

University of Calgary¹

01 Jan 1973-International Journal for Numerical Methods in Engineering

TL;DR: In this paper, a finite element displacement analysis of multilayer sandwich beams and plates, each with n stiff layers and n−1 weak cores, is presented, where each layer has individual orthotropic properties of its own and the bending rigidities of the stiff layers are taken into account while direct stresses in cores are neglected in the analysis.

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Abstract: A finite element displacement analysis of multilayer sandwich beams and plates, each with n stiff layers and n−1 weak cores, is presented. Each layer of the sandwich structure may have individual orthotropic properties of its own and the bending rigidities of the stiff layers are taken into account while direct stresses in cores are neglected in the analysis. The condition of common shear angle for all cores, which has been used by several authors is not implied in the formulation. Several examples on bending problems have been solved using lower-order elements and the accuracy of the results has been shown to be excellent. Two higher-order elements have also been developed but have not been found to yield much better results. The free vibration problems of multilayer sandwich structures have also been solved, and good accuracy is demonstrated.

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148 citations

"Vibro-acoustic behavior of a multil..." refers methods in this paper

...Pradeep [16] used the same Khatua and Cheung [15] finite element formulation to obtain the critical buckling temperature....
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...The finite element formulated based on the Khatua and Cheung [15] is validated with the commercial finite element code ANSYS for forced vibration response calculations....
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...Multilayer rectangular sandwich plate element [15]....
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...Structural analysis The displacement based formulation proposed by Khatua and Cheung [15] is used for the structural analysis....
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...The displacement based formulation proposed by Khatua and Cheung [15] is used for the structural analysis....
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Journal Article•DOI•

Vibration and damping analysis of a three-layered composite plate with a viscoelastic mid-layer

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P. Cupiał, J. Nizioł

25 May 1995-Journal of Sound and Vibration

TL;DR: In this paper, the natural frequencies and loss factors of a rectangular three-layered plate with a viscoelastic core layer and laminated face layers are derived for a non-symmetric plate with general anisotropy of the face layers.

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147 citations

"Vibro-acoustic behavior of a multil..." refers background or methods or result in this paper

...Cupial and Niziol [4] used a simplified analytical model, which did not account for shear deformation in the face layers....
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...verify the natural frequencies and associated modal loss factors with Cupial and Niziol [4]....
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...From Table 1, it is clear that both the natural frequencies and modal loss factors obtained using the present method matches well with the results reported by Cupial and Niziol [4] and Wang et al....
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...Natural frequencies and loss factors A rectangular viscoelastic sandwich plate with isotropic facings analyzed by Cupial and Niziol [4] is considered for validation of natural frequencies and loss factors....
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...Modal indices Cupial and Niziol [4] (Analytical) Wang et al....
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Journal Article•DOI•

Vibration and acoustic response of a composite plate with inherent material damping in a thermal environment

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P. Jeyaraj¹, N. Ganesan¹, Chandramouli Padmanabhan¹•Institutions (1)

Indian Institute of Technology Madras¹

06 Feb 2009-Journal of Sound and Vibration

TL;DR: In this article, the authors presented 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.

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129 citations

"Vibro-acoustic behavior of a multil..." refers background in this paper

...[12,13] studied the effect of thermal loading on vibration and acoustic response of isotropic and composite plates....
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Journal Article•DOI•

Vibration and Damping Analysis of Fibre Reinforced Composite Material Plates

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N. Alam, N.T. Asnani

01 Jan 1986-Journal of Composite Materials

TL;DR: In this paper, a variational model for a laminated plate consisting of an arbitrary number of fiber-reinforced composite material layers has been developed, using the variational principles.

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Abstract: Governing equations of motion for a laminated plate consisting of an arbitrary number of fiber-reinforced composite material layers have been developed, using the variational principles. Each layer was considered to be of an orthotropic material with its directional elastic properties depending on the fiber orientation. The extension, bending, inplane shear, and transverse shear deformations in each separate layer were considered. The analytical results were verified with the literature-reported data. A study of the optimum fiber orientations in a criss-cross laminated plate has shown that different fiber orientations lead to the maximum frequency and the maximum damping. For a cross-ply laminated plate, the maximum flexural frequency ratio has been obtained for large aspect ratio plates and with large values of elastic modular ratio E11/E22. The maximum loss factor for a cross-ply plate was obtained with square plate and with small values of E11/E22. 15 references.

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96 citations

Additional excerpts

...Alam and Asnanai [3] derived equations of motion, for vibration of a general multilayered plate, consisting of an arbitrary number of alternate stiff and soft layers of orthotropic material, using variational principles....
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Journal Article•DOI•

Vibration and Acoustic Response of an Isotropic Plate in a Thermal Environment

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P. Jeyaraj¹, Chandramouli Padmanabhan¹, N. Ganesan¹•Institutions (1)

Indian Institute of Technology Madras¹

01 Oct 2008-Journal of Vibration and Acoustics

TL;DR: In this article, the authors presented numerical simulation studies on the vibration and acoustic response characteristics of an isotropic rectangular plate in a thermal environment using commercial finite element softwares ANSYS and SYSNOISE.

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Abstract: This paper presents numerical simulation studies on the vibration and acoustic response characteristics of an isotropic rectangular plate in a thermal environment using commercial finite element softwares ANSYS and SYSNOISE. First the critical buckling temperature is obtained, followed by modal and harmonic analyses considering prestress due to the thermal field in the plate, with the critical buckling temperature as a parameter. The vibration response predicted is then used to compute the sound radiation. It is found that the displacement response of the structure increases with an increase in temperature for all boundary conditions. The overall sound radiation of the plate marginally increases with an increase in temperature for all boundary conditions when the temperature approaches the critical buckling temperature although there is a sharp increase in sound power levels.

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87 citations

"Vibro-acoustic behavior of a multil..." refers background in this paper

...[12,13] studied the effect of thermal loading on vibration and acoustic response of isotropic and composite plates....
[...]
...The resonant amplitude of vibration and acoustic response increases with temperature rise for an isotropic plate [12] while the resonant amplitudes are decreasing with increase in temperature rise for the viscoelastic sandwich plate....
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