セミサブリグに働く風,潮流による転倒モーメントの推定法に関する研究(その1) : デッキおよびコラム付デッキに働く流体カ

概要

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The estimation methods for assessing the overturning moment acting on semisubmersible type rigs due to external forces such as wind, waves and current, have been sought in order to get an accurate estimation for the stability of semisubmersible in both the intact and the damaged condition. The accuracy of the estimation of overturning moment has become more rigorous than before since the disasters of A. Kielland and Ocean Ranger. Much efforts have been devoted to the exploitation of the techniques for the estimation for the forces and moments on semi -submersibles. A research project, in which an attempt is made for establishing a method of estimation of the overturning mement due to wind and current loads on a floating body, has been performed as one part of the stability research project for semisub rigs. In this paper, some results from the project will be described. Especially the forces and moment acting on the decks and columns which are main constructive components of semi-submersible are studied and discussed.. And about the possible estimation method for the forces on bluff components of structure the discussion wi be focused.
独立行政法人海上技術安全研究所の論文
1985-11-30