摘要
本文在作者已有的二维改进MPS(Moving Particle Semi-implicit)方法基础上进行了三维拓展(主要包括三维自由面粒子判断),并通过将计算得到的三维溃坝问题结果与文献中实验结果相对比,验证了所发展模型的准确性。在结构响应计算方面,将刚性和柔性模态耦合并计及相互影响。在此基础上,将流体和结构部分通过迭代方式耦合,从而实现强流固耦合计算。最后,应用上述模型对涉及大刚体位移叠加弹性变形的三维方梁的强非线性时域水弹性问题进行了计算,验证了模型对此类问题的有效性。
Based on the 2D modified MPS method that was developed by the author in the previous work, the 3D version is presented in this paper (mainly about the 3D free surface particle identification). A 3D dam-break problem was simulated, and the comparison with the experiment result given in the literature proves good accuracy of the method. For the structure dynamics, a model that couples the rigid-body and flexible modes and includes their mutual effect is used. The strong coupling between fluid and structure solvers was conducted in an iterative manner. Finally, the hydroelasticity computation of a 3D floating flexible beam, which is characterized by large rigid-body motion plus elastic deformation, was conducted to show the feasibility of the developed model for such type of problems.
作者
孙哲
尹恒辉
张桂勇
宗智
SUN Zhe;YIN Heng-hui;ZHANG Gui-yong;ZONG Zhi(School of Naval Architecture, Dalian University of Technology, Liaoning Engineering Laboratory for Deep-Sea Floating Structures, Dalian 116024, China;COSCO SHIPPING Heavy Industry (Dalian) Co.,Ltd., Dalian 116113, China;State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China)
出处
《船舶力学》
EI
CSCD
北大核心
2019年第8期948-956,共9页
Journal of Ship Mechanics
基金
装备预研船舶重工联合基金项目（6141B042852,6141B04010103）
国家自然科学基金（51809035,51579042,51639003）
中央高校基本科研业务费专项项目（DUT19RC(4)028,DUT17RC(3)017,DUT2017TB05）
关键词
MPS方法
流固耦合
时域计算
水弹性
计算流体力学
MPS (Moving Particle Semi-implicit method)
FSI (Fluid Structure Interaction)
time-domain computation
hydroelasticity
CFD (Computational Fluid Dynamics)
