China may build up to nine LNG terminals in the next few years to promote consumption of cleaner fuels, including one near Beijing by 2008 when the city hosts the Olympics Games, a Chinese industry official said yeste...China may build up to nine LNG terminals in the next few years to promote consumption of cleaner fuels, including one near Beijing by 2008 when the city hosts the Olympics Games, a Chinese industry official said yesterday.展开更多
In this study, we perform a series of numerical calculations on two vessels in the time domain. One vessel maintains its position using an internal turret and catenary mooring lines, while the other is moored to the f...In this study, we perform a series of numerical calculations on two vessels in the time domain. One vessel maintains its position using an internal turret and catenary mooring lines, while the other is moored to the former vessel via an STS (ship-to-ship) mooring system. We obtain hydrodynamic forces using the HOBEM (higher-order boundary element method). Then, we determine their coefficients using the convolution function method in the time domain. We model the catenary mooring lines using the finite element method, and the STS mooring lines are treated as linear SPs (springs) with constraints. To optimize the STS system, we conduct parametric studies on STS mooring systems. Finally, we compare the motion and structural responses of the initial and modified configurations.展开更多
文摘China may build up to nine LNG terminals in the next few years to promote consumption of cleaner fuels, including one near Beijing by 2008 when the city hosts the Olympics Games, a Chinese industry official said yesterday.
文摘In this study, we perform a series of numerical calculations on two vessels in the time domain. One vessel maintains its position using an internal turret and catenary mooring lines, while the other is moored to the former vessel via an STS (ship-to-ship) mooring system. We obtain hydrodynamic forces using the HOBEM (higher-order boundary element method). Then, we determine their coefficients using the convolution function method in the time domain. We model the catenary mooring lines using the finite element method, and the STS mooring lines are treated as linear SPs (springs) with constraints. To optimize the STS system, we conduct parametric studies on STS mooring systems. Finally, we compare the motion and structural responses of the initial and modified configurations.