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

  • 제44권5호
  • /
  • Pages.488-495
  • /
  • 2007
  • /
  • 1225-1143(pISSN)
  • /
  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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탄성지지된 박용 펌프의 고체음저감에 관한 연구

A Study on Structure-Borne Noise Reduction for Resiliently Mounted Pumps for Ship

  • 김현실 (한국기계연구원 음향소음팀) ;
  • 강현주 (한국기계연구원 음향소음팀) ;
  • 김봉기 (한국기계연구원 음향소음팀) ;
  • 김상렬 (한국기계연구원 음향소음팀)
  • Kim, Hyun-Sil (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kang, Hyun-Ju (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kim, Bong-Ki (Acoustics Lab., Korea Institute of Machinery & Materials) ;
  • Kim, Sang-Ryul (Acoustics Lab., Korea Institute of Machinery & Materials)
  • 발행 : 2007.10.20
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초록

In this paper, SBN (Structure-Borne Noise) reduction of resiliently mounted machinery and effect of the foundation impedance on mount performance is studied. SBN reduction through the mount is analyzed by using two theoretical models; mass-spring model and wave model, in which longitudinal wave propagation is included. It is found that floor impedance greatly affects SBN reduction through lower mount, while it is almost negligible to SBN reduction through upper mount. Comparisons between measurement and predictions shows that the mass-spring model is valid only in low frequency range below few hundred Hz, while for high frequency ranges longitudinal wave propagation in the mount must be considered.

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참고문헌

  1. 김극수, 최수현, 2003, '선내 탑재 마운팅 장비의 동특성에 관한 실험적 연구,' 대한조선학회 논문집, 제 40권, 제 2호, pp. 28-33
  2. 김현실, 김재승, 강현주, 김봉기, 김상렬, 2006, 'Noise and Vibration Reduction of Double-Resiliently Mounted Pump-Like Machinery,' 한국소음진동공학회 추계학술대회 발표논문집, KSNVE06A-05-03
  3. 정정훈, 김병현, 곽정석, 정종안, 이현엽, 2004, '함정 탑재장비용 고무마운트의 특성 실험연구,' 대한조선학회 춘계학술대회 논문집, pp. 402-409
  4. 최수현, 김극수, 조연, 김병곤, 2002, '선내 탑재 장비용 마운팅 시스템의 진동특성 평가에 관한 연구,' 대한조선학회 논문집, 제 39권, 제 1호, pp. 73-81
  5. Cremer, L. and Heckl, M., 1988, Structure-Borne Sound, 2nd Ed., Springer-Verlag, p. 333
  6. Gaul, L., 1992, 'Substructure Behaviour of Resilient Support Mounts for Single and Double Stage Mounting Systems,' Computer and Structures, Vol. 44, pp, 273-278 https://doi.org/10.1016/0045-7949(92)90246-V
  7. Snowdon, J.C., 1968, Vibration and Shock in Damped Mechanical Systems, John Willey & Sons, Inc., Chapter 3