| 부산항 방파제 진입항로의 강한 횡조류 환경에서 선속에 따른 조종자의 선박조종의 결과 검토 |
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이동섭, 정태권 |
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| Analysis of Ship Handlers' Maneuvers with respect to Ship's Speed under Strong Cross Current in the Breakwater Channel of Busan Port |
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Dong-Sup Lee, Tae-Gweon Jeong |
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| Abstract |
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In order to ascertain the effect of ship's speeds in maneuver under the condition of strong cross current in the breakwater channel of Busan port. this paper is to deal with the analyses of vessel proximity measures, vessel controllability measures, and ship handlers' subjective evaluation measures of simulated maneuvers, which were carried out by 76 ship handlers who conned Panamax bulk carrier of 60,000 DWT, The set and drift of current are southwesterly and 2 knots. The speeds of the model ship are 5 knots & 10 knots respectively. The followings are concluded ① In the approaches of the breakwater of Busan port, ship handlers psychologically tend not to give the drift angle of more than 10' because ship's head points out of the entrance. ② Ship handlers' subjective evaluation. vessel proximity and controllability measures are relatively larger under the speed of 5 knots than under that of 10 knots, due to direct pressure of strong current. ③ A single index of controllability measures was suggested, by removing their units. |
| Key Words:
Proximity measures;Controllability measures;Ship handler's subjective evaluation measures;
Composite track plot analysis;Single controllability index;Drift angle |
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