음향 인텐시티 측정법을 이용한 자동차의 소음방사특성에 관한 실험적 연구 I -엔진 및 배기계 부위소음을 중심으로-

An Experimental Study(I) on the Noise Emission Characteristics of Motor Vehicles Using Sound Intensity Measurement Method -A Case of Engine and Exhaust Noise-

  • 양관섭 (한국건설기술연구원) ;
  • 유남구 (전주공업전문대학 건축공학과) ;
  • 박병전 (전북대학교 공과대학 건축공학과) ;
  • 김영완 (전북대학교 공과대학 건축공학과)
  • 발행 : 1996.12.01

초록

Locations and emission characteristics of noise source of motor vehicles are great important factors to control the road traffic noise in effective ways. From results of this study on emission characteristics of engine and exhaust noise, we could find that every noise emission of different kind of vehicles has smilar pattern. The main emission locations of engine noise for the front of vehicle became the space between the road surface and bottom of the body and radiator grill, and for the side of vehicle became the space between the road surface and bottom nearby the front wheel. In case of exhaust noise of passenger-car and light truck, all the highest sound intensity level located near surface of road. But it is hard to conclude the height of noise source of driving vehicles with only results of this study. So further studies are needed to check the emission characteristics of noise.

키워드

참고문헌

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  2. Noise Barrier Design Handbook, Federal Highway Administration, FHWA-RD-76-58 Myles A. Simpson
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  5. SAE Paper 790502 Application of Acoustic Intensity Measurement to Engine Noise Evaluation J. Y. Chung;J. Pope;D. A. Feldmaier
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  11. SAE Paper 810401 The use of Acoustic Intensity Scans for Sound Power Measurement and for Noise Source Identificaiton in Surface Transportation Vehicle J. Pope;R. Hickling;D. A. Feldmaier;D. A. Blaser