본 기술보고에서는 선박운항 시뮬레이터를 위한 해양파 가시화의 개선을 목적으로 여러 해양파 가시화 요소 및 그에 대한 전체적인 재현 방안에 대해 고찰하였다. 이를 위해 우선 해양파 가시화 요소를 해양파 표면, 해양파 부서짐, 상호작용, 광원, 수중 등으로 구분하고, 각 구성 요소별 가시화가 필요한 세부 가시화 요소들을 정리 하였다. 또한 이를 재현하는 과정에서 설계에 반영해야 할 내용들을 사실적 해양파 가시화 및 실시간 해양파 가시화, 선박 운동특성 재현, 시뮬레이터의 활용 관점에서 분석하였다. 분석을 통해, 사실적 해양파 가시화가 몰입감 형성 및 보다 정확한 선박 운동특성 재현, 다양하고 제어 가능한 시뮬레이션 시나리오 생성 등에 중요한 역할을 수행함을 확인하였다. 또한 선박운항 시뮬레이터를 위한 해양파 가시화는 고려해야 할 요소 및 그에 대한 구현 방안, 관련 제약 사항이 많은 만큼 구현 전 종합적이고 체계적인 접근이 필요함을 확인하였다.

It is general that large ships entering or leaving a port located in the East coast of Korean peninsular are often exposed athwart to swell while maneuvering in the vicinity of breakwater at harbor enterance or to prevailing wind inside the port in winter. Particulary, Many VLCCs laden with ore coal are calling at Pohang Port, on account of which it is likely that one of those VLCCs block the port if they were to run aground in fairway due to adverse circumstance of swell, prevailing winds or improper shiphandling. This accident may result in delay of delivery of raw material for Pohang Steel Mill which will bring about shortcomings of steel products for nationwide relevant industries causing national economic shock. Therefore, This study basically aims at establishment of certain criteria for safe unberthing of VLCC in this port to prevent such unexpected disaster because any VLLC is highly affected by external forces when in ballast condition. Computer simulations are unavoidable to fulfull this study successfuly and many simulations have been carried out repeatedly to find a model of safe unberthing under various unfavourable wind conditions. The "PC-based ship maneuvering simulator for training purpose" was used to perform numerous simulations at the least economic burden and to verify its availability that it can be used not only for training but also some other purposes. purposes.

Most of the ShipHandling Simulators of full-mission-bridge system need vast area to install and even PC-based maneuvering simulators are often equipped with Steering Wheel or Engine Telegraphe etc. of data input interface, which necessarily makes the user face with excessive financial burden. These have been one of the obstacles for the officers, captains, pilots and students in access to maneuvering simulation whenever they want to try it in advance prior to actual ship maneuvering. Subsequently, all the officers and captains come to have little chances to train themselves until they arualified as a pilot after a long period of time of realship maneuvering practice on board, which means they have to control they have to control their own ship at sea without clear understanding on her maneuverability when they are forced to do it on the way. And these lack of capability for maneuvering have used so often to result in marine casualties of collision with other ships or pier facilities while maneuvering in harbor. To prevent those accidents by means of enhancing their maneuvering ability, PC-based DeskTop Simulator that allows anyong to access readily at anytime is needed and in conformation to such demand this simulator has been developed. The Software this simulator written in Turbo Pascal Ver. 5.0 has adopted MMG mathmatical model theoretically in part and also it was designed to make it possible that all numeric data inputs and outputs with graphic presentation for maneuvering operation be carried out just only with keyboard and monitor console. With the Simulation software, all the officers, captains, pilots and even students who has a proper computer at hand are expected to be able to make an attempt to simulate the maneuvering of their ownship or any other types of them at any port in which they want to do it.