氷山衝突時のセミサブリグの安全性について

概要

論文の詳細を見る
In order to keep safety operation of offshore structure operated in sea ice and icebergs area, every efforts for early detection of them have being made. Nevertheless these efforts, risk of iceberg collision for offshore structure cannot be avoided yet. Therefore, for offshore structures operated in sea ice and iceberg area, it is most important that confirmation of structural safety is made of iceberg collision. In this paper, investigation of structural safety was performed about iceberg collision for semi-submersible drilling unit. Non-linear method is used to estimate the extent of structural collision damage and iceberg crushing. The extent of structural collision damage is affected by size, shape and drifiting speed of icebergs, so analysis of iceberg collision was performed mainly to research the effect of them. And then, we examined the effect of structural collision damage and dynamic stress induced by impact force with a view to confirming structural safety of semi-submersible drilling unit.
社団法人日本船舶海洋工学会の論文
1984-08-24