Ship-to-Ship Mooring Analysis of LNG Jetty Terminal

摘要

The ship-to-ship transfer of cargo is often regarded as a high-riskoperation due to the need to maintain control and coordination betweenthe two adjacent vessels. Understanding the hydrodynamic interactionbetween two adjacent vessels under wave-excitation is thereforeessential for terminal layout design and safe operations. The proposedLNG berth terminal is designed to be an open sea terminal withseparated berthing dolphins and mooring dolphins used for anchoringboth FSRU and LNGC. The FSRU is to be berthed on the seaward sideof the unloading platform and the LNGCs will be moored ship-to-shipwith FSRU. The LNG terminal is designed as a pile supported structure.The piles may be installed vertically or on a batter, and their heads maybe fixed, pinned, or elastically restrained by the concrete pile cap. Theworst loading condition that assumes the overload of several mooringlines attached to one of the vessels in an unavoidable circumstance isconsidered. The predicted vessel movement, fender reaction on bothFSRU and LNGC, and the maximum forcing acted on the fast releasemooring hook are provided.