Author(s): Sithalakshmi Shanmugam, Rahul Dev Raju, Panneer Selvam Rajamanickam, Sundaravadivelu Ranganathan
Linked Author(s): Sithalakshmi S
Keywords: Mooring, Wave, Fixed pier, Floating pier, Vessel response
Abstract: In the recent past, there have been several accidents owing to the failure of mooring lines and excessive movement of the vessel at berth. Proper analysis of the adequacy of vessel's mooring gear, pier's mooring points and the vessel's mooring arrangement is required. In this paper, mooring analysis is conducted on a large LNG vessel named Qmax Mozah. The dynamic responses from the vessel when moored in a conventional fixed pier are compared to that of the responses when the vessel is moored to a floating pier. Planning and simulation tool namely, OPTIMOOR is used to plan mooring arrangements in advance and manage the mooring lines when subjected to a variety of environmental conditions. The forces acting on vessel, forces on QRHs (Quick Release Hooks), fender loads, mooring line loads and the vessel motions for vessel, berth and environmental conditions are found. The analysis is done for the environmental conditions specified by OCIMF (Oil Companies International Marine Forum) guidelines. Based on the analysis, the forces acting on the vessel, forces on QRHs, fender loads, mooring line loads and vessel motions are compared for fixed and floating pier, as well as the optimum conditions for the vessel to operate are recommended
Year: 2017