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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October 2008
Research Papers
Vibration and Acoustic Response of an Isotropic Plate in a Thermal Environment
P. Jeyaraj,
P. Jeyaraj
Machine Design Section, Department of Mechanical Engineering,
Indian Institute of Technology Madras
, Chennai 600 036, India
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Chandramouli Padmanabhan,
Chandramouli Padmanabhan
Machine Design Section, Department of Mechanical Engineering,
e-mail: mouli@iitm.ac.in
Indian Institute of Technology Madras
, Chennai 600 036, India
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N. Ganesan
N. Ganesan
Machine Design Section, Department of Mechanical Engineering,
Indian Institute of Technology Madras
, Chennai 600 036, India
Search for other works by this author on:
P. Jeyaraj
Machine Design Section, Department of Mechanical Engineering,
Indian Institute of Technology Madras
, Chennai 600 036, India
Chandramouli Padmanabhan
Machine Design Section, Department of Mechanical Engineering,
Indian Institute of Technology Madras
, Chennai 600 036, Indiae-mail: mouli@iitm.ac.in
N. Ganesan
Machine Design Section, Department of Mechanical Engineering,
Indian Institute of Technology Madras
, Chennai 600 036, IndiaJ. Vib. Acoust. Oct 2008, 130(5): 051005 (6 pages)
Published Online: August 13, 2008
Article history
Received:
April 5, 2007
Revised:
February 20, 2008
Published:
August 13, 2008
Citation
Jeyaraj, P., Padmanabhan, C., and Ganesan, N. (August 13, 2008). "Vibration and Acoustic Response of an Isotropic Plate in a Thermal Environment." ASME. J. Vib. Acoust. October 2008; 130(5): 051005. https://doi.org/10.1115/1.2948387
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