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선박의 크기를 고려한 두 선박의 간섭력에 관한 시뮬레이션

Simulation of Interaction Forces between Two Ships Considering Ship's Dimension

  • 투고 : 2017.06.07
  • 심사 : 2017.07.25
  • 발행 : 2017.09.30

초록

본 연구에서는 선박조종시뮬레이터를 이용하여 선박의 크기에 따른 두 선박의 간섭력의 운동특성을 분석하였다. 파나막스급 컨테이너선이 자선보다 크기가 작은 계류선을 근접통항하는 경우에 계류선에서 간섭력의 피크점과 운동패턴의 변화가 뚜렷하게 나타났다. 이땐 선박의 정횡 상태 전후에서 전후력과 회두모멘트가 반대방향으로 바뀌므로 계류선의 움직임에 각별한 주의가 요구된다. 반대로 파나막스급 컨테이너선이 자선보다 큰 계류선을 통과하는 경우에는 근접상황이 발생하는 초기에 통과선에서 간섭력의 피크점이 나타났고, 통과선에는 정횡 이후 약 1L(통과선의 전장)의 구간동안 지속적으로 흡인력이 발생했다. 또한, 통과선과 계류선의 선체간의 수평거리가 2B(통과선의 폭)이하로 줄어들면, 통과선의 초기에 발생하는 간섭력이 급격히 증대된다.

This paper analyzed the motion characteristics of two ships according to the ship's dimension using Ship Handling Simulator. When the panamax container ship passes the smaller ship, peak point and patterns of interaction forces for the moored ship are noticeable. Accordingly, special attention should be paid to the movements of moored ship because surge force and yaw moment changes in the opposite direction before and after condition of ship's beam. However, when the container ship passes the larger moored ship in reverse, peak point stood out on the passing ship at the beginning of ship-to-ship interaction and attraction force on the passing ship occurred steadily during 1L(length overall of passing ship) interval at a point of beam. In addition, as the lateral distance between the hull of two ships decreases less than 2B(breadth of passing ship), interaction forces on the passing ship at the beginning are sharply increase.

키워드

참고문헌

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