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Development of the Simulator for Estimating Intake Noise of Vehicle and Its Improvement (Part I)

자동차 흡기소음평가 시뮬레이터 개발 및 이를 이용한 소음저감 성능개선

  • Oh, Jae-eung (Dept. of Mechanical Engineering, Hanyang University) ;
  • Han, kwang-Hee (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • Hong, Jeong-Hyuk (Dept. of Precision Mechanical Engineering, Hanyang University)
  • 오재응 (한양대학교 기계공학부) ;
  • 한광희 (한양대학교 대학원 정밀기계공학과) ;
  • 홍정혁 (한양대학교 대학원 정밀기계공학과)
  • Published : 1998.02.01

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 the road test and the experiment using a engine dynamo, namely, the trial and error process. This approach require very high cost and long time consuming to develop the system. In this study, the simulator which had a speaker in the cylinder head was presented. It was easy to analyze the acoustic characteristic of the intake system in laboratory environment. This study presented a improvement to reduce the level of the intake noise using the Transfer Matrix Method and NIT/SYSNOISE, FE analysis commercial software. It was to select optimum position of a resonator and verified by the simulator. This simulator can be used early in the design stage of development of the intake system.

Keywords

Intake Noise;Transmission Loss;Transfer Matrix Method;Acoustic Finite Element Analysis;NIT/SYSNOISE;Resonator