中文摘要：

文章主要研究近两年国际海事组织（IMO）海上环境保护委员会（MEPC）所讨论的新船能效设计指数EEDI计算公式中的海洋气象因子fw,认为计算fw时计算船舶的波浪增阻是必需的。文中重点针对EEDI公式中船舶短波绕射增阻的计算方法进行研究。根据三维势流理论计算了集装箱船以及三种简化的集装箱船的波浪漂移力,以分析船体形状对短波绕射增阻的影响,并将结果与日本学者的近似方法做了比较。发现船首的形状对绕射增阻的影响相对较大,船尾次之。文中的研究成果对指导船型设计有一定的参考价值,对完善绕射增阻的计算方法有一定的帮助。

英文摘要：

EEDI （Energy Efficiency Design Index）, which is a complicated formula to describe the ship’s CO2 （carbon dioxide） emission,is discussed by the MEPC （Marine Environment Protection Committee）. This paper is focused on the weather factor fw from the formula, and indicates that the wave added resistance must be calculated before the calculation of the parameter fw . Attention is paid on the wave added resistance due to wave diffraction at zero forward speed. In order to analyze the influence of the ship hull shapes on added resistance due to wave diffraction, 3D potential flow theory is used to calculate the drift force of a container and three simplified models. The numerical result is compared with the results calculated by the method proposed by Japanese researchers. It is found that the influence of fore shapes on added resistance is more than the one of the aft. Some problems are found during the analysis of the results and are summarized. The achievement of this paper has a certain reference value for ship hull design and is useful to improve the method to calculation added resistance due to wave diffraction.