船舶浅水航行下沉量数值计算  

Numerical calculation of ship squat in shallow water

作　　者：马小飞 于洋[1] 房希旺[1] MA Xiao-fei;YV Yang;FANG Xi-wang(Navigation College,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]大连海事大学航海学院,辽宁大连116026

出　　处：《大连海事大学学报》2021年第2期20-25,共6页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(51379026)。

摘　　要：为求解船舶航行中的下沉量,采用NURBS技术对船体进行曲面重构,并应用基于Rankine源格林函数的一阶面元法构造数学模型,然后结合两者得出船舶下沉量的计算方法.以标准船型KCS为例进行验证,计算值与实验值的最大和最小相对误差分别为-10.32%和-1.84%,与实验情况基本相符,说明该算法具有可行性.In order to analyze ship squat during navigation, the NURBS was used to reconstruct the ship hull surface, and a first-order panel method based on Rankine Source Green Function was applied to construct the mathematical model, and the calculation method of ship squat was obtained on the basis of the above. Taking the standard ship type KCS as an example for verification, the maximum and minimum relative errors between the calculated value and the experimental value were about-10.32% and-1.84% respectively, which were basically consistent with the experimental situation, it shows that the algorithm was feasible.

关 键 词：NURBS 面元法 船舶下沉量 

分 类 号：U676.1[交通运输工程—船舶及航道工程]