Change in list of a ship due to vertical shifting of a weight

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• 作者：Yevgeniy V. Gembaty ; Yevgeny V. Nikitin
• 关键词：Change in list of a ship ; Vertical shifting a weight ; Suspended cargo ; Heavy ; lift operation
• 刊名：WMU Journal of Maritime Affairs
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：16
• 期：1
• 页码：99-113
• 全文大小：
• 刊物主题：Public International Law; Environmental Law/Policy/Ecojustice; Marine & Freshwater Sciences; Offshore Engineering;
• 出版者：Springer Berlin Heidelberg
• ISSN：1654-1642
• 卷排序：16

文摘

When a ship gets an original list, and a weight is to be vertically shifted (or is to be suspended by a ship’s gear), two approaches for calculating the change in list of the ship have been developed as follows: the first one—for the case when the biggest list of a ship is not more than 5–6°, and the second one—when the biggest list of a ship is not more than 10–12°. These equations have been represented in dimensionless form and reviewed for different specific shapes of a ship’s sides: circle, tumblehome, and wall-sided ones. For wall-sided ships, in order to simplify the procedure of calculating the change in list, a graphical approach and corresponding nomogram has been proposed and designed. The developed method and equations can be also used for calculating the change in list of a ship when heavy-lift cargo is just suspended by the ship’s own gear during heavy-lift operations.