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Estimation of Roll Related Coefficients of a Ship by Using the System Identification Method

시스템 식별법을 이용한 선박의 횡동요 계수 추정

  • 윤현규 (한국해양연구원 해양안전방제연구본부) ;
  • 손남선 (한국해양연구원 해양안전방제연구본부)
  • Published : 2004.08.01

Abstract

When a fast container ship or a naval vessel is turning, comparable roll motions occur. Therefore, roll effect has to be considered in the horizontal equations of motion of the ship to predict the maneuverability well. In this thesis, a new method to determine a roll model structure and estimate its coefficients by applying the system identification technique to the data of sea trial tests was proposed. The simulation results from the estimated roll model were well consistent with the true one in spite of the difference between the estimated and the true model structures of roll hydrodynamic moment.

Keywords

References

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