船舶参数横摇非线性力学特征数值分析  

Numerical analysis of nonlinear mechanical characteristic of ship’s parametric rolling

作　　者：杨波[1] 王骁[1] 吴明[1] YANG Bo;WANG Xiao;WU Ming(Department of Navigation of Dalian Naval Academy,Dalian 116018,China)

机构地区：[1]海军大连舰艇学院航海系

出　　处：《船舶力学》2019年第7期802-809,共8页Journal of Ship Mechanics

基　　金：“十三五”装备预研领域基金项目(6140207010210);“十三五”装备预研共用技术项目(4140701030102)

摘　　要：为研究船舶参数横摇发生的力学机理,文章基于计算流体力学方法,对DTMB5512船模规则波顶浪航行时的参数横摇运动进行了数值模拟。模拟结果表明:参数横摇复原力矩曲线会随横摇角增大而出现2个拐点,呈现出先增大、后减小、再增大的非线性特征;其零点、拐点及最大值点可以分别用垂荡、纵摇及船/波相对位置进行表征。文中方法实现了船舶参数横摇力学特征的数值分析,可为船舶波浪中的完整稳性评估提供新的方法。In order to study the mechanical mechanism of parametric rolling,CFD approach study for the DTMB 5512 surface combatant is presented.The simulation results show that the parametric rolling restoring moment curve shows two inflection points with increase of the rolling angle,which shows the non-linear characteristics of first increasing,then decreasing,and then increasing.And its zero point,inflection points and maximum point can be characterized by pitch,heave and ship/wave relative position,respectively.The method of this paper realized the analysis of the mechanical characteristics of parametric rolling,and provided a new way for vessel’s complete stability evaluation in waves.

关 键 词：船舶 参数横摇 非线性特征 计算流体力学 

分 类 号：U661.3[交通运输工程—船舶及航道工程]