从柴油机的性能、可靠性、经济性等方面,综合分析国产12V 190型柴油机在海洋平台工况中应用的可行性。认为,12 V 190型柴油机只要对调速器,发电机组及其公共底座、管线接头、排气系统几个方面作些改进,是适合于海洋钻井平台使用的,并能...从柴油机的性能、可靠性、经济性等方面,综合分析国产12V 190型柴油机在海洋平台工况中应用的可行性。认为,12 V 190型柴油机只要对调速器,发电机组及其公共底座、管线接头、排气系统几个方面作些改进,是适合于海洋钻井平台使用的,并能替代进口柴油机。展开更多
A liftboat has big independent spuncans. The interaction between the liftboat structure and the foundation can provide significant fixity. Both methods of numerical simulation and experimental test are adopted to stud...A liftboat has big independent spuncans. The interaction between the liftboat structure and the foundation can provide significant fixity. Both methods of numerical simulation and experimental test are adopted to study the fixity. An experimental model to the scale of 1:40 of a liftboat was mounted on a sand box in the laboratory, and also a three-dimensional FEM model was established in the numerical simulation. The variation of the fixity and the maximum stress in the legs are studied. On the basis of the fact that the experimental data are in good agreement with the numerical simulation results, the fixity is further studied by numerical simulation with different soil foundation parameters and different sizes of spuncans.展开更多
文摘A liftboat has big independent spuncans. The interaction between the liftboat structure and the foundation can provide significant fixity. Both methods of numerical simulation and experimental test are adopted to study the fixity. An experimental model to the scale of 1:40 of a liftboat was mounted on a sand box in the laboratory, and also a three-dimensional FEM model was established in the numerical simulation. The variation of the fixity and the maximum stress in the legs are studied. On the basis of the fact that the experimental data are in good agreement with the numerical simulation results, the fixity is further studied by numerical simulation with different soil foundation parameters and different sizes of spuncans.
