Journal ArticleDOI
Vibration and Acoustic Response of an Isotropic Plate in a Thermal Environment
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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.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.read more
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Sound Radiation Mitigation of Geometrically Nonlinear Plates Subjected to Subsonic Airflow
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The influence of geometric imperfections on post-buckling behavior and free vibrations of a fiber-reinforced composite laminated plate under thermal loading
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Thermal buckling and vibro-acoustic behaviour of functionally graded graphene polymer layered composites subjected to in-plane temperature variance
Bimal Oommen John,Fuad Umar Hassan,Nivish George,Tony Chacko,Vinod Bhagat,P Jeyaraj,R. Kiran Kumar Reddy +6 more
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References
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Journal ArticleDOI
Thermal postbuckling analysis of laminated composite plates
TL;DR: In this article, the thermal postbuckling behavior of graphite/epoxy multi-layered rectangular plates of various boundary conditions is studied using the finite element method using temperature dependent thermal and elastic properties of the material.
Journal ArticleDOI
Dynamic behavior and sound transmission analysis of a fluid–structure coupled system using the direct-BEM/FEM
TL;DR: In this paper, a direct-BEM/FEM method was proposed to analyze the vibration and acoustic radiation characteristics of a submerged structure, which is more effective than FEM in computing the underwater sound radiation of the stern structure.
Journal ArticleDOI
Influence of support properties on the sound radiated from the vibrations of rectangular plates
TL;DR: In this paper, two different models were developed to calculate the optimal support stiffness that minimizes the velocity response of homogeneous plates, based on the wave propagation at the edge and the Rayleigh-Ritz method.
Journal ArticleDOI
Buckling and vibration of rectangular composite viscoelastic sandwich plates under thermal loads
Pradeep Vangipuram,N. Ganesan +1 more
TL;DR: In this paper, the free vibration and damping characteristics of plates consisting of composite stiff-layers and an isotropic viscoelastic core were studied under thermal loads using finite element method.
Journal ArticleDOI
Buckling of laminated skew plates
TL;DR: In this paper, a high precision triangular plate bending finite element has been extended to the buckling analysis of laminated skew plates, which involves development of the transformation matrix between global and local degrees of freedom for nodes lying on skew edges and suitable transformation of the element matrices.
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