Study on Variation in Ship's Course Keeping Ability under Waves Depending on Rudder Type

타의 종류에 따른 선박의 파랑 중 직진성능에 관한 연구

Koo, Bonguk;Lee, Jonghyun;Kang, Donghoon

  • Received : 2013.02.27
  • Accepted : 2013.04.19
  • Published : 2013.04.30


The variation in the course keeping ability in relation to rudder type is investigated using simulations with 3 different types of rudders (a normal rudder, normal rudder with a plate, and Schilling rudder) under wave conditions. The simulation is developed based on an MMG model with Kijima's regression model, along with the data from Son's experiments and Kose's experiments. A 3-D source distribution method is applied to calculate the source of the external wave forces for the simulation. The coefficients of an autopilot controller that may affect the course keeping ability are also estimated from the simulations with the different rudders. The course keeping ability is evaluated by comparing the forward distances while the ships are simulated with the rudders and autopilot controller.


Course keeping ability;Special rudder;Autopilot;Wave forces;Maneuvering simulation


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