利用CFD-MBD数值分析的超大型集装箱船水弹性响应分析  

Numerical Analysis of Hydroelasticity Response of Ultra Large Container Ship Using CFD-MBD

作　　者：贺帆 王建华[1] 万德成[1] 刘聪 刘义 He Fan;Wang Jianhua;Wan Decheng;Liu Cong;Liu Yi(Computational Marine Hydrodynamic Lab(CMHL),School of Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院船海计算水动力学研究中心(CMHL),上海200240 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《水动力学研究与进展（A辑）》2024年第3期442-451,共10页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(52131102)。

摘　　要：伴随着船舶工业的发展,船舶尺度不断增加,船舶固有频率随之降低,超大型船舶在一般海况中也更容易发生弹振和颤振,因此准确估计船舶水弹性响应对于船舶设计和航行安全具有重要意义。该文构建了一种基于CFD-MBD的双向流固耦合模拟方法,其中流场计算采用开源程序OpenFOAM,结构部分采用开源多体动力学计算程序MBDyn,流场和结构则通过PreCICE进行信息交互。使用该方法对一艘超大型集装箱船在波浪中的运动及水弹性响应进行了数值模拟,并对比了数值计算和模型试验结果,验证了该文数值模拟方法预报船舶水弹性响应的准确性,分析了不同波浪工况中的运动和弯矩响应,发现该集装箱船在波长船长比为1的工况中航行时,船舯波浪弯矩达到最大值。With the development of the shipbuilding industry,the scale of ships continues to increase,and the natural frequency of ships decreases accordingly.Ultra large ships are also more prone to elastic and flutter in general sea conditions.Therefore,accurately estimating the hydroelasticity response is of great significance for ship design and navigation safety.This article uses a two-way coupling method based on CFD-MBD to numerically simulate the motion and hydroelasticity response of an ultra large container ship in waves.The calculation of the flow field is carried out using the open-source program OpenFOAM,and the structural part is calculated using the open-source multi-body dynamics calculation program MBDyn.The flow field and structural information are exchanged through PreCICE.By comparing the numerical results with experimental data,the feasibility of this coupling method is validated.A comparative analysis of hydroelasticity response in different wave conditions is conducted,providing reference for predicting the hydroelasticity response of ships.It was found that the container ship reached its maximum wave bending moment in the middle of the ship while sailing in a wavelength to length ratio of 1.

关 键 词：流固耦合 CFD-MBD方法 超大型集装箱船 垂向弯矩 水弹性响应 

分 类 号：TU476[建筑科学—结构工程]