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Abstract In general, tugboats are used to transport many kinds of unactuated vessels such as ships and offshore structures. This requires an adequate model of tugboats operation to take into account surge, sway, and yaw motions precisely. In this study, we present an optimization method of tugboats operation for transporting an offshore floating crane in shipyard. An optimization problem including the interactions between the crane and tugboats is mathematically formulated. The procedure to solve this problem is composed of two steps. First, the required total thrust force and moment acting on the crane are calculated to make it arrive the target position with desired velocity and direction in the presence of environmental disturbances. Second, the optimization problem is solved by using the genetic algorithms (GA) to find total number of the required tugboats, position, thrust, and direction of each tugboat. The proposed approach is applied to the transportation of the offshore floating crane in the various environmental conditions such as waves, winds, and currents.
Publication Date 2017-01-21

Seung-Min Lee, Myung-Il Roh, Ki-Su Kim, Seung-Ho Ham, "Optimization of Tugboats Operation for Transporting an Offshore Floating Crane in Environmental Disturbance", Proceedings of International Conference on Mechanical Design and Engineering, HonKong, China, 2017.01.20-22


List of Articles
번호 분류 제목 Publication Date
» International Conference Seung-Min Lee, Myung-Il Roh, Ki-Su Kim, Seung-Ho Ham, "Optimization of Tugboats Operation for Transporting an Offshore Floating Crane in Environmental Disturbance", International Conference on Mechanical Design and Engineering, 2017.01.20-22 file 2017-01-21
214 International Conference Ki-Su Kim, Myung-Il Roh, Sung-Min Lee, "A Simultaneous Optimization Method of the Direction and Speed for Ship Route Planning", Proceedings of Smart Ship Technology 2017, London, England, 2017.01.24-25 file 2017-01-25
213 Domestic Conference 함승호, 노명일, 이혜원, 홍진욱, 문중수, 심우승, "물리 기반 해석을 이용한 해상 크레인의 작업 안전성 평가 시스템 개발", 2016년도 해양플랜트설계연구회 추계워크샵, 부산, pp. 939-953, 2016.11.17-18 file 2016-11-18
212 Domestic Conference 정선경, 노명일, 김기수, "복원성, 운용성 및 생존성을 고려한 함정의 최적 구획 배치 방법", 2016년도 대한조선학회 추계학술발표회, 창원, pp. 215, 2016.11.3-4 file 2016-11-03
211 Domestic Conference 김주성, 노명일, 함승호, 김기수, "기름 유출 및 적재 화물을 고려한 손상 선박의 준 정적 침수 시뮬레이션 방법 연구", 2016년도 대한조선학회 추계학술발표회, 창원, pp. 283, 2016.11.03-04 file 2016-11-04
210 Domestic Conference 정동훈, 노명일, 함승호, 이찬영, "탐지 및 기동 성능을 고려한 함정의 공학급 교전 시뮬레이션 방법 연구", 2016년도 대한조선학회 추계학술발표회, 창원, pp. 214, 2016.11.03-04 file 2016-11-03
209 International Conference Sung-Min Lee, Myung-Il Roh, Ki-Su Kim, "Determination of Economical Ship Route Using Simultaneous Optimization Method", Proceedings of ACDDE 2016, Jeju, Korea, 2016.10.25-28 file 2016-10-27
208 International Conference Hye-Won Lee, Myung-Il Roh, Seung-Ho Ham, "Collision Analysis of Block Erection by a Floating Crane", Proceedings of ACDDE 2016, Jeju, Korea, 2016.10.25-28 file 2016-10-27
207 International Conference Seung-Ho Ham, Myung-Il Roh, Hye-Won Lee, "Dynamic Analysis for Design and Production in Shipbuilding", Proceedings of ACDDE 2016, Jeju, Korea, 2016.10.25-28 file 2016-10-27
206 Domestic Conference 함승호, 노명일, 이혜원, 홍진욱, 문중수, 심우승, "초대형해상크레인의 시뮬레이션 기반 작업 안전성 평가 시스템 개발", 2016년도 한국화학공학회 추계학술발표회, 대전, 2016.10.20-21 file 2016-10-20
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