Research on Strongly Nonlinear Fluid-Structure Interactions by Wave Impact and Its Applications

波浪冲击强非线性流固耦合研究及其应用

• 批准号: 21246128
• 负责人: KASHIWAGI Masashi
• 金额: $ 24.88万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21246128/
• 关键词: 流体・構造連成問題; 数値流体力学; 波浪衝撃; 非線形境界要素法; ランンキンパネル法; 有限要素法; 流体構造連成問題; ランキンパネル法; 非定常波形解析; 波浪中抵抗増加; 青波衝撃; 圧力計測; 高速度カメラ; CIP法

The CIP-based Cartesian-grid calculation method for strongly nonlinear wave and rigid-body interaction problems was extended to treat the case of elastic-body motions in waves. A hybrid method was also developed, combining a 3D Rankine panel method for the hydrodynamic analysis and a finite-element method for computing elastic vibration modes, and the effect of elastic modes on wave-induced ship motions was investigated. Furthermore, a time-domain nonlinear calculation method based on the boundary element method was studied, which enabled us to simulate the interaction of wave impact and elastic motion of a vertical plate.Experimental studies were also done, measuring complicate fluid motion near the ship bow caused by the green-water impact by use of a high-speed camera.

基于 CIP 的笛卡尔网格计算强非线性波浪和刚体相互作用问题的方法被扩展到处理波浪中弹性体运动的情况。还开发了一种混合方法，结合用于水动力分析的 3D 朗肯面板法和用于计算弹性振动模式的有限元方法，并研究了弹性模式对波浪引起的船舶运动的影响。进一步研究了基于边界元法的时域非线性计算方法，能够模拟波浪冲击与垂直板弹性运动的相互作用，并进行了实验研究，测量了船艏附近的复杂流体运动。由于使用高速摄像机造成的绿水影响。

项目成果

Prediction of Radiation Forces By Means of a CIP-based Cartesian Grid Method

• 发表时间: 2011
• 作者: G. He;T. Isshiki;M. Kashiwagi;Changhong Hu

３次元ランキンパネル法を用いた船の流力弾性応答解析法について

关于三维朗肯面板法船舶水弹性响应分析方法

• 作者: A.Kuramoto;T.Toyama;T.Takeuchi;Y.Nagai;M.Hasegawa;T.Yoshiie;Y.Nishiyama;原 拓也
• 通讯作者: 原 拓也

研究業績 研究論文 柏木正教授の研究論文

研究成果 研究论文 柏木正教授的研究论文

Response of Vertical Elastic Plate due to Solitary Wave

垂直弹性板对孤立波的响应

• 发表时间: 2010
• 作者: Mohsen FARAHAT;Tsuyoshi HIRAJIMA;新屋貴浩;Guanghua He and Masashi Kashiwagi
• 通讯作者: Guanghua He and Masashi Kashiwagi

Numerical Study on Ship Motions and Added Resistance in Waves by Strongly Nonlinear Three-Dimensional Code

强非线性三维代码对船舶运动和波浪附加阻力的数值研究

• 发表时间: 2010
• 期刊: Proc. of 5th Asia-Pacific Workshop on Marine Hydrodynamics - APHydro2010
• 作者: Hisako Kubo;Masashi Kashiwagi and Changhong Hu
• 通讯作者: Masashi Kashiwagi and Changhong Hu