Analysis of exhaust muffler with micro-perforated panel
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Journal of Vibroengineering
2014
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my.unimap-356022014-06-17T07:21:10Z Analysis of exhaust muffler with micro-perforated panel Wei, Hong Tan Zaidi, Mohd Ripin, Dr. weihong36@hotmail.com mezaidi@eng.usm.my Boundary element method (BEM) Micro-perforated panel (MPP) Muffler Transmission loss (TL) Link to publisher's homepage at http://new.jve.lt/ An expansion chamber muffler with the use of a micro-perforated panel (MPP) was developed to improve the acoustic performance. A simulation was carried out using the SysNoise application in the LMS Virtual Lab based on the boundary element method, and the model was verified with the transmission loss measurement using the two-load method and showed good agreement. There was a 40 % accuracy improvement in the BEM model compared to the analytical approach for the simple expansion chamber muffler. The results showed that the performance of this muffler with an 80 mm air cavity depth improved by 75 %, where the transmission loss curve of the muffler became broader, and the hump-shape of the curve was more flat at the top when compared with the performance of a conventional simple expansion chamber muffler. The new muffler with the MPP was applied to a small utility engine with a displacement of 35 cc and the results showed that the noise level was reduced by 20 dBA for the frequency band of 125 Hz to 4000 Hz. 2014-06-17T07:21:10Z 2014-06-17T07:21:10Z 2013 Journal of Vibroengineering, vol. 15(2), 2013, pages 558-573 1392-8716 http://jve.lt/Vibro/JVE-2013-15-2/JVE0151306.htm http://dspace.unimap.edu.my:80/dspace/handle/123456789/35602 Journal of Vibroengineering |
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| topic |
Boundary element method (BEM) Micro-perforated panel (MPP) Muffler Transmission loss (TL) |
| spellingShingle |
Boundary element method (BEM) Micro-perforated panel (MPP) Muffler Transmission loss (TL) Wei, Hong Tan Zaidi, Mohd Ripin, Dr. Analysis of exhaust muffler with micro-perforated panel |
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Link to publisher's homepage at http://new.jve.lt/ |
| author2 |
weihong36@hotmail.com |
| author_facet |
weihong36@hotmail.com Wei, Hong Tan Zaidi, Mohd Ripin, Dr. |
| format |
|
| author |
Wei, Hong Tan Zaidi, Mohd Ripin, Dr. |
| author_sort |
Wei, Hong Tan |
| title |
Analysis of exhaust muffler with micro-perforated panel |
| title_short |
Analysis of exhaust muffler with micro-perforated panel |
| title_full |
Analysis of exhaust muffler with micro-perforated panel |
| title_fullStr |
Analysis of exhaust muffler with micro-perforated panel |
| title_full_unstemmed |
Analysis of exhaust muffler with micro-perforated panel |
| title_sort |
analysis of exhaust muffler with micro-perforated panel |
| publisher |
Journal of Vibroengineering |
| publishDate |
2014 |
| url |
http://dspace.unimap.edu.my:80/dspace/handle/123456789/35602 |
| _version_ |
1643797863420919808 |
| score |
13.214268 |