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http://dx.doi.org/10.5050/KSNVE.2015.25.2.083

Modification of the Porosity of the Perforated Plate for the Improvement of Acoustic Attenuation Performance for Muffler  

Bae, Kyeong-Won (Graduate School of Mechanical Engineering, Pusan National University)
Park, Jeong-Pil (Graduate School of Mechanical Engineering, Pusan National University)
Jeong, Weui-Bong (School of Mechanical Engineering, Pusan National University)
Ahn, Se-Jin (School of Mechanical&Electrical Engineering, Uiduk University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.25, no.2, 2015 , pp. 83-89 More about this Journal
Abstract
The transmission loss(TL) has been widely used as the acoustic performance index of industrial mufflers. Industrial mufflers usually consist of several partitions with perforated plate. In this study, firstly, the computational model for a typical industrial muffler was performed and validated by comparing with the experimental results. Secondly, the effects of the porosity of the perforated plates on the acoustical TL were investigated and the database of the tendencies were set up. Finally, on the basis of these tendencies, the modified muffler with better TL than conventional one could be suggested.
Keywords
Muffler; Transmission Loss; Admittance; Impedance; Perforated Plate; Porosity;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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