In this paper, the authors propose a new method for optimum design of bending grooves on vibrating panel-like structures to reduce noise. It is proposed in the method to use the mapping of sound pressure level on the vibrating panel’s surface for best positioning of a bending groove and to apply the particle swarm optimization algorithm (PSOA) for determining the best dimensions of the bending groove. The optimum design method is applied to a rectangular aluminum panel whose size is 0.45×0.4m with thickness 0.001m under the boundary condition of clamping four edge lines. Then, a panel with a bending groove is actually made according to the optimum design, and an experiment is carried out to the panel for verification. The application study is carried out for two cases of different position of a point force excitation on the panel. The two applications demonstrate that the bending grooves designed by the optimization method can realize good reduction of sound power.
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ASME 7th Biennial Conference on Engineering Systems Design and Analysis
July 19–22, 2004
Manchester, England
ISBN:
0-7918-4173-1
PROCEEDINGS PAPER
An Optimum Bending Groove Design of Panel to Minimize Noise Power Available to Purchase
Jin-Young Jeon,
Jin-Young Jeon
Tokyo Institute of Technology, Tokyo, Japan
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Masaaki Okuma,
Masaaki Okuma
Tokyo Institute of Technology, Tokyo, Japan
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Yusuke Nakura
Yusuke Nakura
Tokyo Institute of Technology, Tokyo, Japan
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Jin-Young Jeon
Tokyo Institute of Technology, Tokyo, Japan
Masaaki Okuma
Tokyo Institute of Technology, Tokyo, Japan
Yusuke Nakura
Tokyo Institute of Technology, Tokyo, Japan
Paper No:
ESDA2004-58106, pp. 537-544; 8 pages
Published Online:
November 11, 2008
Citation
Jeon, J, Okuma, M, & Nakura, Y. "An Optimum Bending Groove Design of Panel to Minimize Noise Power." Proceedings of the ASME 7th Biennial Conference on Engineering Systems Design and Analysis. Volume 1. Manchester, England. July 19–22, 2004. pp. 537-544. ASME. https://doi.org/10.1115/ESDA2004-58106
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