| NURBS高阶面元法在多体水动力分析中应用 |
| |
| 引用本文： | 戴愚志,余建星,唐广寅,董文斌.NURBS高阶面元法在多体水动力分析中应用[J].海洋工程,2007,25(1):21-26. |
| |
| 作者姓名： | 戴愚志 余建星 唐广寅 董文斌 |
| |
| 作者单位： | 天津大学,建筑工程学院,天津,300072 |
| |
| 基金项目： | 中国博士后科学基金资助项目(2005037534) |
| |
| 摘 要： | 当位于海上的多个浮体距离相近时,它们间将产生显著的水动力相互作用。使用NURBS(非均匀有理B样条)高阶面元法进行多体水动力分析,速度势用任意阶的B样条函数近似,物面用NURBS曲面表示,由于水动力与几何表示相分离,就可以方便地实现计算机辅助设计与水动力分析的集成。对截断圆柱与椭球间的水动力相互作用和半潜式平台与箱型驳船间的水动力相互作用的计算显示此种方法可以对多体间的水动力相互作用给出准确的分析,计算时间和占用内存大幅减少。
|
| 关 键 词： | 面元法 非均匀有理B样条 速度势 多体水动力分析 |
| 文章编号： | 1005-9865（2007）01-0021-06 |
| 修稿时间： | 2006-03-20 |
Application of a NURBS higher-order panel method to multi-body hydrodynamic analysis |
| |
| DAI Yu-zhi,YU Jian-xing,TANG Guang-yin,DONG Wen-bin.Application of a NURBS higher-order panel method to multi-body hydrodynamic analysis[J].Ocean Engineering,2007,25(1):21-26. |
| |
| Authors: | DAI Yu-zhi YU Jian-xing TANG Guang-yin DONG Wen-bin |
| |
| Institution: | School of Civil Engineering, Tianjin University, Tianjin 300072, China |
| |
| Abstract: | Significant hydrodynamic interactions occur when bodies are located in close proximity on the ocean surface.A NURBS(Non-Uniform Rational B-Spline) higher-order panel method is applied to multi-body hydrodynamic analysis in this paper.The velocity potential is approximated by B-splines of arbitrary order and the geometry is represented by NURBS surface.The integration of computational aided design and hydrodynamic analysis is easily realised due to the separation of the hydrodynamic and geometric representation.The computation of the hydrodynamic interaction between a truncated cylinder and a spheroid and the one between a semi-submersible and a barge indicate that hydrodynamic interactions among multiple bodies can be accurately analyzed by this method and that a major reduction in computation time and required memory can be achieved. |
| |
| Keywords: | panel method non-uniform rational B-spline velocity potential multi-body hydrodynamic analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《海洋工程》浏览原始摘要信息 |
| 点击此处可从《海洋工程》下载免费的PDF全文 |
|
