Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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A study on the influence of bow thruster for turning ability

선수 스러스터가 선회성능에 미치는 영향에 관한 연구

  • Yang, Jeong-Hun (Faculty of maritime industrial engineering, cheju national university) ;
  • Ahn, Young-Wha (Faculty of maritime industrial engineering, cheju national university) ;
  • Choi, Chan-Moon (Faculty of maritime industrial engineering, cheju national university)
  • 양정훈 (제주대학교 해양산업공학부) ;
  • 안영화 (제주대학교 해양산업공학부) ;
  • 최찬문 (제주대학교 해양산업공학부)
  • Published : 2006.05.31
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Abstract

It is indispensable to grasp the turning ability of a ship to operate her effectively. For this purpose, the author measured the turning ability of training ship, A-RA by use of bow thruster and stem rudder. The turning ability of this ship, in case of using both of stem rudder and bow thruster at the same time, caused by increase of steering angle provides more influence to the size of tactical diameter than it caused by the power of bow thruster. But the influence of bow thruster on the turning ability is available only within rudder angle $5^{\circ}\;-\;10^{\circ}$, so it is possible to grasp that the effect of bow truster is reduced as rudder angle become bigger. In case of the influence of bow thruster by her speed, the ability of bow thruster is very effective at low speed, but it is almost not available in normal turning speed. Therefore, the using both of stem rudder and bow thruster can be useful in case of low speed proceeding at entrance or departure of the narrow waterway or inside port which sea traffic is congest for collision avoidance.

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References

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