Layer | Fill | Outline |
---|
Map layers
Theme | Visible | Selectable | Appearance | Zoom Range (now: 0) |
---|
Fill | Stroke |
---|---|
Collaborating Authors
Results
ABSTRACT In this paper, a new side-by-side mooring bay designed by Keppel Offshore & Marine Technology Centre is investigated, and its global performance and dynamic stability are compared against those of the traditional SPM-mooring system. The multi-body systems include SPM buoy with a turntable and mooring system, a VLCC FPSO, oil tanker, and the hawsers/fenders and yokes between them. A time-domain vessel-mooring-coupled dynamic analysis computer program is used to simulate their respective responses and relative displacements in collinear, relatively mild random wave and current environment assuming that the system is to be operated in a protected bay area. In the analyses of both systems, time-domain results of the responses, the corresponding spectra, and the summary of statistics are presented. It shows that the newly-designed SPM mooring system experiences smaller relative motions between vessels and is more stable in the same environment compared to the traditional SPM mooring system. INTRODUCTION Nowadays, the single point mooring (SPM) system with catenary anchor leg mooring (CALM) has been installed at hundreds of locations worldwide. This technique is still in great demand for loading or offloading terminals in shallow and intermediate water regions. The SPM system is typically connected to a FPSO unit through a yoke and thus can be regarded as an external turret. In case of offloading operation, another tanker docks to the FPSO terminal in side-by-side pattern through hawser-fender connections. Under this arrangement (called conventional system), the system becomes asymmetric and may pose some problem in keeping its dynamic stability and reducing relative motions between the two vessels, especially in certain non-collinear environments. In this regard, a new SPM docking system is proposed in this paper and it consists of a new SPM with balancing arms and an additional control line between the tanker and SPM.
- Europe (0.68)
- North America > United States > Texas (0.28)
- Energy > Oil & Gas > Upstream (1.00)
- Transportation > Freight & Logistics Services > Shipping > Tanker (0.54)
Final Acceptance Test On Advanced Ship Maneuvering And Mooring Support System At Ship-to-ship Transfer Operations By Fender Monitoring System of Pneumatic Fenders
Yamada, Shu (Industrial Products Technical Department, The Yokohama Rubber Co., Ltd.) | Sakakibara, Shigeki (Industrial Products Technical Department, The Yokohama Rubber Co., Ltd.) | Miyamoto, Masahiko (Industrial Products Technical Development Department, The Yokohama Rubber Co., Ltd.) | Nakatani, Koji (R & D Center, R & D Department, The Yokohama Rubber Co., Ltd.)
ABSTRACT The floating type pneumatic fender roles an energy absorber for safe ship berthing and mooring in the usage of ship-to-ship oil and gas transfer operations at offshore and ship-to-jetty in harbor basin. We proposed an advanced ship maneuvering and mooring support system by combining with fender monitoring. In this paper, the final acceptance test of the support system is demonstrated to evaluate the effectiveness and accuracy. INTRODUCTION Recently natural resources and energy sea transportation such as oil and gas trade are increasing, and the bulk carriers operations show activity in all over the world. Under the circumstances the offshore ship-to-ship transfer operation plays a major role in the natural resources and energy sea transportation, and is frequently carried out at many sea areas in the world even if during rough weather conditions due to increase of the demands. Thus the safety and security for the ship-to-ship transfer operations at offshore is a key issue to maintain the safe and effective operations. The floating type pneumatic fender is an energy absorber for safe ship berthing and mooring used in ship-to-ship transfer operations offshore. We proposed a quick fender selection method by using the ordinary ship berthing energy calculation method based on the OCIMF guidelines and simulation software which consists of frequency domain analysis for hydrodynamic forces and time domain analysis for motions of ships (S. Sakakibara and S. Yamada;2008, S. Sakakibara at al;2005). However, it is required for safety to monitor the performance and workability of the fenders, mooring lines and ship behaviors on site. We have developed "Advanced Ship Maneuvering and Mooring Support System by fender monitoring system of pneumatic fender" which is composed of a remote fender monitoring system and an advanced ship maneuvering and mooring support system.
- Transportation > Marine (1.00)
- Transportation > Freight & Logistics Services > Shipping > Tanker (1.00)
- Energy > Oil & Gas (1.00)