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主要评价根据IACS通用结构规程(IACSCSR)方法设计的AFRAMAX级双层船壳油轮结构的极限状态(ULS),并与根据IACS前一版通用规范设计的同级/型油轮的结构设计对比。用这两种设计方法,计算对比了加劲板结构在甲板和船底、抵抗竖向弯曲的船体支架等部分的极限强度。采用ALPS/ULSAP程序对加劲板结构进行ULS评估,采用ALPS/HULL程序进行船体破坏分析。同时也采用了更为精细的ANSYS程序对结构进行非线性有限元分析。
It primarily evaluates the ULS of an AFRAMAX double hull tanker designed according to the IACS General Structural Practices (IACSCSR) methodology and compares it to the structural design of a similar / type tanker designed in accordance with the previous IACS general specification. Using these two design methods, the ultimate strength of the stiffener structure on the deck and bottom of the hull and hull brackets resisting vertical bending is calculated and compared. The ALPS / ULSAP program is used to evaluate the stiffened plate structure by ULS, and the ALPS / HULL program is used to analyze the hull failure. At the same time, a more elaborate ANSYS program is used to perform nonlinear finite element analysis of the structure.