Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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The Acoustic Characteristics of KRISO Cavitation Tunnel for Measurement of Underwater Noise

수중소음 계측을 위한 KRISO 캐비테이션 터널의 음향학적 특성

  • 안종우 (한국해양연구소 선박해양공학분소) ;
  • 김기섭 (한국해양연구소 선박해양공학분소) ;
  • 이진태 (한국해양연구소 선박해양공학분소) ;
  • 김재승 (한국기계연구원 구조시스템연구부) ;
  • 김상열 (한국기계연구원 구조시스템연구부)
  • Published : 2000.02.01
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Abstract

In the KRISO cavitation tunnel, the acoustic characteristics for the measurement of underwater noise are investigated, The background noise is measured and analyzed up to 100kHz at various test conditions. The noise level of the KRISO cavitation tunnel is compared with those of the other cavitation tunnels which have been designed for the noise study[HYKAT(Germany), GTH(France), etc.]. In order to investigate the background noise source. the coherence between structural vibration and noise level is analyzed using the B&K 3550 FFT analyzer. The experimental results show the possibility of the noise study and suggest the improvement plan.

수중소음 계측의 가능성을 파악하기 위하여 KRISO 캐비테이션 터널의 음향학적 특성을 조사하였다. 유속과 압력을 변화시키면서 배경소음을 100kHz까지 계측하였으며, 소음계측을 수행하기 위하여 건설된 캐비테이션 터널[HYKAT(독일), GTH(프랑스)등]들의 배경소음과 비교하였다. 배경소음원을 조사하기 위하여 B&K 3550 FFT 분석기를 이용하여 구조물의 진동과 소음과의 상관도를 해석하였다. 실험결과로부터 소음계측 가능성을 파악할 수 있었으며, 소음환경의 개선방안도 도출할 수 있었다.

Keywords

References

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