Min Shen
School of Mechanical Engineering and Automation,Wuhan Textile University, 1 Fangzhi Road 430073, Wuhan,China
Kazuteru Nagamura
Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, 739-8527, Japan
ABSTRACT
In the automobile industry, the use of Polycarbonate (PC) window pane is well developed. However, the sound insulation performance of automobiles Polycarbonate composite pane is poor than traditional glass pane because of its high rate of stiffness to low weight. There is need to design polycarbonate window pane with superior acoustical insulating property for automobile consumer comfort. In this study, the innovative super thin sandwich structure (less than 10 mm) was developed using viscoelastic core layers and the outer layer of the panel was fabricated from Polycarbonate composite panel. This paper introduces the vibro-acoustic models to predict the response of the pane and to evaluate the effect of damping treatment on both structural vibration and noise transmission in the fluid domain. One of the particularities of the proposed model lies in the only storage of the panel impedance matrix reducing the numerical efforts of previous studies. The numerical results reveals that noise attenuation can be realized by appropriate selection of structural parameters such as the damping of structural and cavity, the thickness of the pane and density of viscoelastic core material.
PDF References Citation
Received: June 07, 2013;
Accepted: October 08, 2013;
Published: November 13, 2013
How to cite this article
Min Shen and Kazuteru Nagamura, 2013. Noise Reduction of Rectangular Cavity with Sandwich Polycarbonate Window Pane for Automobile. Journal of Applied Sciences, 13: 5050-5056.
DOI: 10.3923/jas.2013.5050.5056
URL: https://scialert.net/abstract/?doi=jas.2013.5050.5056
DOI: 10.3923/jas.2013.5050.5056
URL: https://scialert.net/abstract/?doi=jas.2013.5050.5056
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