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The Design Technique for Reducing the Intake Noise of Vehicle (Part II)

자동차 흡기소음저감을 위한 설계기법에 관한 연구

  • Oh, Jae-Eung (Dept. of Mechanical Engineering, Hanyang University) ;
  • Han, Kwang-Hee (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Kim, Sang-Hun (Dept. of Precision Mechanical Engineering, Hanyang University)
  • 오재응 (한양대학교 기계공학부) ;
  • 한광희 (한양대학교 대학원 정밀기계공학과) ;
  • 김상헌 (한양대학교 대학원 정밀기계공학과)
  • Published : 1997.10.01

Abstract

The intake noise, a major source of vehicle noises, has rapidly become a noticeable, and has been studied to reduce the level. Traditionally, the intake system has been developed through a experiment, namely, the trial and error process. This approach requires very high cost and long time consuming to develop the systm. Recently, FEM and BEM are becoming useful in analysis of the intake system, and the results of analysis are very valid. But because this techniques also require high cost and long analysis time, this technique is generally not practical tool at the early stage of the development. In this study, the software was developed to predict and analyze the acoustic characteristics of the intake system. It was based on the Transfer Matrix Method and operated to analyze a simplified intake system in a personal computer. It can be used early in the design stage of development of the intake system. This study presented a improvement to reduce the level of the intake noise, which modified the specification of the intake system. And the improvement were verified by NIT/SYSNOISE, FE analysis commercial software, and testing a prototype.

Keywords

Intake Noise;Transmission Loss;Insertion loss;Transfer Matrix Method;Two-Microphone Method;Acoustic Finite Element Analysis

References

  1. SYSNOISE Manual
  2. 한국자동차공학회 추계학술대회 논문집 자동차의 저소음 흡기계 설계기법에 관한 연구 오재응;한광희;손동연
  3. The Optimum Setting Position of the Silencer Eizo Suyama;Takashi Ishida;Yasuo Nakamura
  4. J. Acoust. Soc. Am v.79 no.1002(2) Influence of Errors on the Two-microphone Method for Measuring Acoustic Properties in Ducts Hans Boden;Mats Abom
  5. Performance of Acoustic Components for Engine Induction Systems Mal P.Sacks;Steve Hackney
  6. Reduction of Exhaust and air Induction System Noise by a Predictive Method Jon W. Parsons
  7. 대한기계학회 추계학술대회 논문집 승용차 흡기계 소음저감 성능 개선에 관한 연구 오재응;한광희
  8. Journal of Vibration and Acoustics v.117 A Time-domain Computational Simulation of Acoustic Silencer Selamet A.;Dickey, N. S.;Novak, J. M.
  9. 한국소음진동공학회, 춘계학술대회 논문집 자동차 흡기소음저감을 위한 설계기법에 관한 연구 오제응;한광희
  10. J. Acoust. Soc. Am Error Analysis of Two-microphone Measurements in Ducts with Flow Mats Abom;Hans Boden
  11. Acoustics of Ducts and Mufflers Munjal, M. L.
  12. A Computer Simulation Approach to Exhaust System Noise Attenuation William H. Ewing;Hiroshi Nemoto
  13. J. Acoust. Soc. Am. v.61 no.5 Experimental Determination of Acoustic Properties Using a Two-microphone Random-exitation Technique Seybert, A. F.;Ross, D. F.
  14. 自動車技術會論文集 v.23 no.2 音響モグル解析による吸排氣系の振動の豫測 倉田校市郞;三宅和幸;阿部渟平