Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Variation of the structural stability for the sonar dome window in a naval vessel according to the state of the drain valve

소나돔 충, 배수 밸브의 상태에 따른 함정용 소나돔 윈도우의 구조안정도 변화

  • Han, HyungSuk (Naval vessel technology team, Defense Agency for Technology and Quality) ;
  • Lee, KyungHyun (Naval vessel technology team, Defense Agency for Technology and Quality) ;
  • Park, SeongHo (Naval vessel technology team, Defense Agency for Technology and Quality) ;
  • Lim, YongSoo (Busan 2nd team, Defense Agency for Technology and Quality)
  • Received : 2014.03.06
  • Accepted : 2014.06.17
  • Published : 2014.09.30
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Abstract

Since the active sonar for a naval vessel is usually installed in a bulbous bow, GRP(Glass reinforced plastic) material with low density and high strength is used for the material of the sonar dome window in order to prohibit impact by slamming wave or foreign material in the sea. The structural safety of the sonar dome is varied according to the interior and exterior distributed pressure on the sonar dome. Therefore, the variation of the structural safety according to the pressure variation of the sonar dome window caused by the drain valve state is studied by CAE.

수상함정에 사용되는 능동소나는 통상적으로 구상선수부에 설치하게 된다. 따라서 구상선수부에 설치된 소나의 항해 중 유체력 및 수중 부유물에 의한 충돌 파손을 막기 위해 밀도가 낮으면서 강도가 높은 복합소재 재질의 소나돔 윈도우를 설치하게 된다. 외부 유체력 및 충격 발생 시 소나돔 윈도우의 안정도는 소나돔 윈도우 내외부의 압력 분포에 따라 달라지므로 본 연구에서는 소나돔 충, 배수 밸브의 상태에 따른 소나돔 윈도우의 내외부 압력변화를 해석적으로 검토하고 이에 따른 응력변화를 파악하고자 한다.

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References

  1. M. H. Kang, "Impact analysis for sonar domes collided with logs", Journal of the Korea Institute of Military Science and Technology, vol. 14, no. 4, pp. 564-571, 2011 (in Korean). https://doi.org/10.9766/KIMST.2011.14.4.564
  2. J. Lee and P. A. Wilson, "Experimental study of the hydro-impact of slamming in a modern racing sailboat" Journal of Sailboat Technology, vol. 1, pp. 1-28, 2010.
  3. T. K. Lee, C. W. Rim, Y. N. Kim, J. K. Heo, and B. H. Kim, "A study on measurement of flare slamming of large container vessel(II)-characteristic analysis of measured slamming pressure", Journal of the Society of Naval Architects of Korea, vol. 44, no. 3, pp. 279-284, 2007 (in Korean). https://doi.org/10.3744/SNAK.2007.44.3.279
  4. J. H. Hwang, J. K. Park, and W. C. Koo, "Numerical analysis of ship motions and wave loads including momentum slamming", Journal of the Society of Naval Architects of Korea, vol. 49, no. 2, pp. 109-115, 2012 (in Korean). https://doi.org/10.3744/SNAK.2012.49.2.109
  5. J. Y. Ko, "A study on the large deflection behavior of ship plate with secondary buckling", Journal of Korean Society of Marine Engineering, vol. 23, no. 4, pp. 565-573, 1999 (in Korean).
  6. B. V, "German armed forces shipbuilding regulation", Geman, BV 1040-1, 1985.
  7. IACS, "Standard wave data, IACS Recommendation No. 34, 2001.