长峰和短峰不规则波中船舶回转运动数值研究  

Numerical Study on Ship Turning Maneuvers in Long and Short Crested Irregular Waves

作　　者：张伟 师超[2] 程杰 何广华 ZHANG Wei;SHI Chao;CHENG Jie;HE Guanghua(School of Ocean Engineering,Harbin Institute of Technology(Weihai),Weihai 264209,China;China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]哈尔滨工业大学(威海)海洋工程学院,威海264209 [2]中国船舶科学研究中心水动力学重点实验室,无锡214082

出　　处：《中国造船》2022年第5期167-180,共14页Shipbuilding of China

摘　　要：对不规则波中船舶回转运动以分离式(MMG)操纵性运动方程为基础,建立了计及低频慢漂力和平均漂移力的数学模型。对一艘S175船分别在低频慢漂力和平均漂移力作用下作回转运动的计算结果进行比较,确定了只需计及平均漂移力的船舶回转运动数学模型。应用该模型对长峰和短峰不规则波中船舶回转运动进行研究,揭示船舶回转轨迹随不规则波特征参数变化的规律。通过回转轨迹和回转过程各参数的对比,分析船舶在长峰波和短峰波中回转运动的差异。In this paper, based on the modular type of maneuvering model(MMG model), two kinds of wave drift loads, namely slow varying wave drift loads and mean wave drift loads, are taken into account to model wave effects on ship turning motion. Numerical tests of a S-175 container ship demonstrate that the mathematical model with mean drift loads accounted is accurate enough for predicting the ship turning motion in irregular waves. Based on the proposed mathematical model, systematic analysis on the ship turning maneuvers in long and short crested irregular waves is performed. Variation of the ship turning performance with characteristic parameters such as wave height and characteristic wave period of irregular waves is revealed. Comparison of turning maneuvering between in long crested irregular waves and in short crested irregular waves is carried out.

关 键 词：波浪中的操纵 回转 不规则波 平均漂移力 低频慢漂力 

分 类 号：U661.338[交通运输工程—船舶及航道工程]