Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Transmission Loss and Back Pressure of Muffler Elements

소음기 구성요소의 소음 및 배압특성에 관한 연구

  • Published : 2002.07.01
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Abstract

The exhaust muffler is designed to reduce the engine noise with the minimum back pressure. It is composed of several elements, and we chose the five types of muffler elements : expansion, extended, offset, reversal, and perforated type. These elements are modeled with I-DEAS, and the transmission loss is analyzed with SYSNOISE, and the back pressure with STAR-CD. We verified the numerical results of transmission loss and pressure loss by experiments for the case of extended muffler. We find a database with the numerical results, which can be used in the design of exhaust muffler in the field.

Keywords

References

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