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신맹기,이상갑,최경식,손경호 韓國海洋大學校 附設 海洋科學技術硏究所 1999 硏究論文集 Vol.8 No.-
This study focuses on a simple analytical approach to calculate crane lifting forces for a sunken ship. The method takes into accounts the relation of lifting forces acting in wire rope slings to the inclination of the vessel including the effect of lug positions. The importance of sunken ship salvage is explained form the statistics of ship casualties during last 15 years. Euler angles are introduced to represent the inclination of a sunken ship in developing the static force and moment equations. Three dimensional examples with on redundant degree of freedom for a GT1500 oil tanker are analyzed and the results show that the information obtained by the method could be useful to salvos to conduct salvage work.
최경식(KYUNG-SIK CHOI),신맹기(MAENG-KEE SHIN) 한국해양공학회 2003 韓國海洋工學會誌 Vol.17 No.3
This study focuses on an analytical approach to calculate crane-lifting forces for a sunken ship, with consideration to elongation of crane ropes. The method takes into account the relation of lifting forces acting in wire rope slings to the inclination of the ship's hull, including the effect of lug positions. For lifting analysis, the Euler angles are defined to represent the inclination of a sunken ship in developing the static force and moment equations. An additional compatibility condition is introduced in order to solve an indeterminate lifting analysis problem with 4 cranes. A set of lifting forces along the 4 crane ropes is calculated. A 3-dimensional example of the G/T 1500 oil tanker is analyzed. The results show that the information obtained by the method could be useful to engineers when conducting salvage work.
최경식(KYUNGSIK CHOI),이상갑(SANG-GAB LEE),손경호(KYOUNG-HO SOHN),신맹기(MAENG-KEE SHIN) 한국해양공학회 2000 韓國海洋工學會誌 Vol.14 No.1
This study focuses on a simple analytical approach to calculate crane lifting forces for a sunken ship. The method takes into account the relation of lifting forces acting in wire rope slings to the inclination of the vessel including the effect of lug positions. The importance of the sunken ship salvage is explained from the statistics of ship casualties during last 15 years. Euler angles are introduced to represent the inclination of a sunken ship in developing the static force and moment equations. Three dimensional examples with one redundant degree of freedom for a GT1500 oil tanker are analyzed and the results show that the information obtained by the method could be useful to salvors to conduct salvage work.