A Study on the Prediction of Maneuvering Motion for a Twin-Screw Twin-Rudder Ship at Initial Design Stage

초기설계 단계에서 2축2타선의 조종운동 추정에 관한 연구

  • 이승건 (부산대학교 조선해양공학과) ;
  • 이경우 (목포해양대학교 해양 및 조선공학부) ;
  • 이승재 (부산대학교 대학원조선공학부)
  • Published : 1997.03.01

Abstract

Mathematical model of maneuvering motion for a single-screw single-rudder ship is established and several applications to the special situations of maneuvering are attempted. While, the mathematical model for twin-screw twin-rudder ship is not presented so much, because that type of ship is not popular. Lee et al. have examined the characteristics of such ship by captive model tests in 1988, in Japan. This paper proposes new mathematical models for propeller effective wake (1 -${\omega}_p$) and effective neutral rudder angle ${delta}_R$ in the case of twin-screw twin-rudder ship. And some maneuvering motionse are calculated with proposed models and compared with exact simulations.

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