中小型LNG船C型独立液货舱载荷分析

C型独立液货舱是中小型LNG船的主要液货舱形式,通常为单圆筒或双圆筒。根据《国际散装运输液化气体船舶构造和设备》(IGC)规则,推导了最大液柱高度计算公式,并对某10000m3LNG运输船的C型独立液货舱载荷进行了计算,比较了单圆筒和双圆筒两种液货舱分别采用二维加速度椭圆合成法和三维加速度椭球合成法导致的结果差异。

Load Analysis of the C Type Independent Liquid Cargo Tank of Small and Medium Size LNG Carriers

C type independent liquid tank is the main liquid tank form for small and medium size LNG carrier,which is usually a single or double cylinder tank.According to the International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk(IGC),the formula to calculate the maximum liquid column height is deduced and the C type independent liquid cargo tank of a 10000m3 LNG carrier is taken to be calculated,and the result of the single cylinder tank using 2D acceleration ellipse synthesis method and the result of double cylinder tank using 3D acceleration ellipsoid synthesis method are compared.