Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2000.06a
  • /
  • Pages.1693-1698
  • /
  • 2000
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Certification of Noise in Medium Speed Diesel Engine Test Shop

중형 엔진 시운전장의 소음 원인 규명

  • 조상연 (현대중공업 산업기술연구소 에너지연구실) ;
  • 오국택 (현대중공업 산업기술연구소 에너지연구실) ;
  • 김홍원 (현대중공업 산업기술연구소 에너지연구실) ;
  • 하지수 (현대중공업 산업기술연구소 에너지연구실) ;
  • 김광수 (현대중공업 중형엔진조립부)
  • Published : 2000.06.22
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Abstract

In operating test of medium speed diesel engine, the large noise over 110dBA would be occurred, and silencer should be needed to prevent the transmission of noise through exhaust duct. A near neighborhood of medium speed engine test shop, outbreak of low frequency noise was reported. From the result of noise measurement, it was found that the coupling of engine noise and air column between workshops was main cause of annoying low frequency noise. From this study, 3 ways of reformation methods were proposed; insertion of plenum chamber, placement of baffles, and alteration of direction of exhaust. As a result of these modification, low frequency noise was cancelled out.

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