船舶不规则波中增速骑浪的数值计算及统计分析  

Time domain numerical simulation and statistical analysis on high runs of a ship in irregular waves

作　　者：王安琪 马宁[1,2,4] 顾解忡 封培元[3] 王廷昊 WANG An-qi;MA Ning;GU Xie-chong;FENG Pei-yuan;WANG Ting-hao(Shanghai Jiaotong University,School ofNaval Architecture,Ocean and Civil Engineering,Shanghai 200240,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai 200240,China;China Marine design and Research Institute of China,Shanghai 200011,China;State Key Laboratory of Ocean Engineering,Shanghai 200240,China)

机构地区：[1]上海交通大学,船舶海洋与建筑工程学院,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240 [3]中国船舶及海洋工程设计研究院,上海200011 [4]海洋工程国家重点实验室,上海200240

出　　处：《舰船科学技术》2022年第3期31-37,共7页Ship Science and Technology

基　　金：“船舶数字化智能设计系统(二期)”项目(GKZY010004);国家自然科学基金资助项目(51709240)。

摘　　要：船舶在随浪中航行时,受到波浪影响,会产生间歇性的异常高速现象,即“high runs”,它反映了一种船速相对于波形高速前冲的危险状态,本文采用“波浪中增速骑浪”指代这一现象。基于统一理论,采用耐波性和操纵性耦合的六自由度弱非线性模型进行求解,对其展开数值计算和统计分析。通过探讨,论证标称航速作为波浪中增速骑浪现象发生判定依据下限的合理性和必要性,对不同波浪谱下high runs和横甩2个维度船舶的运动特征进行统计分析,初步得出了波浪谱越窄船舶增速骑浪和横甩的发生概率越大的结论,并初步探讨了high runs作为横甩前兆的统计学意义。High runs describes a dangerous phenomenon where ship sailing in severe following waves,acted by excessive wave-induced surging forces,accelerates to an abnormally high speed,and finally caught by the waves.Based on the unified theory,a 6 DOF weakly nonlinear model considering both maneuvering and seakeeping motion is used for numerical simulation of high runs.The rationality of nominal speed as the down-crossing of riding a wave is demonstrated,the influence of the wave spectrum on the ship’s motion is discussed preliminarily according to the statistical analysis of the motions of the ship in two dimensions of high runs and broaching under different wave spectrums,,and from a statistical point of view,it demonstrates the significance of high runs as a precursor to broaching.

关 键 词：波浪中增速骑浪 不规则波 数值模拟 横甩 六自由度弱非线性模型 

分 类 号：U661.3[交通运输工程—船舶及航道工程]