Development of the Software for Analysis and Improvement of the Performance of a Passanger Car's Muffler

승용차용 소음기의 성능 해석 소프트웨어 개발 및 향상에 관한 연구

  • 오재응 (한양대학교 자동차공학과) ;
  • 이규택 (조선대학교 기계공학과) ;
  • 이재철 (한양대학교 대학원 정밀 기계공학과)
  • Published : 1996.12.01

Abstract

The need of comfortable car and the efforts to overcoming the noise regulations on passenger cars bring about a series of studies on the ruduction of exhaust noises. In this study, acoustic characteristics of various components that compose mufflers of automobiles were analyzed theoretically, and the program which predicts the performance of mufflers was developed by the transfer matrix approach. The simulations were verified by the experiments on a real muffler. By using the developed simulation program, we investigate the effects of each component on the entire muffler system and the energy loss coefficient on absorption materials in the front muffler. Finally, we proposed two designs to improve the performance of a muffler and verified the improved performance by the experiments and simulations.

Keywords

References

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