심해저 채광 시스템에서 유연관의 안정적인 운용을 위한 부력재 배치 설계

• Published in: Ocean and polar research 2015, 37(2), , pp.119-125
• Main Authors: 오재원, 민천홍, 이창호, 홍섭, 배대성, 임준현, 김형우, Oh, Jae-Won, Min, Cheon-Hong, Lee, Chang-Ho, Hong, Sup, Bae, Dae-Sung, Lim, Jun-Hyun, Kim, Hyung-Woo
• Format: Article
• Language: Korean
• Subjects: 해양학
• ISSN: 1598-141X; 2234-7313
• DOI: 10.4217/OPR.2015.37.2.119

This paper focuses on the efficient arrangement plan of buoyancy modules, which plan is used to secure the safe operation and structural stability of a marine riser. The marine riser is connected between a vessel and seabed devices. The movement of the vessel and the seabed devices are affected by the motion of the riser. The riser of a deep-seabed integrated mining system exerts a strong influence on the healthy transfer of minerals. So, buoyancy modules must be equipped to compensate for the problem which is the structure stability and the dynamic motion. Installation locations and quantities of the buoyancy modules are determined by real sea experiments. But this is not easy to do because in real sea experimental conditions the cost is expensive as well as being, time-consuming and dangerous. Therefore, the locations and quantities should be determined by numerical simulation. This method is called simulation-based design. The dynamic analysis models of the riser and the buoyancy modules are built into the commercial software of DAFUL.