An Experimental Study on the Effects of Afterbody Appendages and Hull Form on the Manoeuvrability of a Container Carrier

컨테이너 운반선의 조종성능에 미치는 선미 부가물과 선미형상의 효과에 관한 실험적 연구

  • 이호영 (현대중공업(주) 선박해양연구소) ;
  • 염덕준 (현대중공업(주) 선박해양연구소)
  • Published : 1998.08.01

Abstract

In this parer, the effects of a skeg, rudder and stern hull form on the manoeuvrability of a container carrier with small length to draft ratio have been investigated through a series of model test. Rudder open water tests and PMM tests were carried out with varying rudder area, afterbody appendages and stern hull form to investigate their effects on the manoeuvrability. The MMG model developed in Japan was used for the manoeuvring simulation with experimentally obtained hydrodynamic coefficients. The result showed that the effects by the variation of stern profile and the skeg below stern bulb are much larger than those by any other types of appendages in improving directional stability of the vessel.

본 논문에서는 계열 모형시험을 통하여, 길이/폭 비가 작은 컨테이너선의 조종성능에 미치는 선미 부가물, 타 및 선미형상의 효과에 대해서 조사 연구되었다. 타, 선미부가물과 선미형상을 변화시키면서 각 경우에 대하여 타 단독시험과 PMM 시험이 수행되었다. 실험적으로 구한 유체력 미계수와 일본에서 개발된 MMG 수학모형을 사용하여 조종성능 해석을 수행하였다. 그 결과 선미형상의 변화와 선미벌브 밑부분에 부가물을 부착시키는 것이 불안정한 선박의 방향안정성을 향상시키는데 있어 가장 효과적이었다.

Keywords

References

  1. IMO A 18/Res.
  2. MARSIM '93 Roll-An Often neglected Element of Manoeuvring Oltmann P.
  3. ITTC'96 v.2 The Effects of After-Body Appendages on the Manoeuvrability of a Container Carrier Lee. H.Y(et al.)
  4. CKMHM'97 A Study on the Effects of Afterbody Appendages and Stern Hull Form on the Ship's Manoeuvrability Lee. H.Y(et al.)
  5. MMG Report Ⅰ~Ⅳ. Bulletin of the Society of Naval Architects of Japan
  6. Journal of SNAK v.34 no.2 The Prediction of Manoeuvrability Using PMM Model Tests-The Comparative Study of mathematical. Models- Lee. H.Y.(el al.)
  7. International Shipbuilding Progress v.25 no.292 On the Mathematical Model of Manoeuvring Motion of Ships Ogawa. A;Kasai. H
  8. PRADS'95 The Influence of Rudder Area on the Maneuverability of a Ship with Large Beam-to Dreft Ratio Gong. I.Y(et al.)
  9. 기본조선학 임상전