基于泰勒展开边界元方法的某半潜式平台水动力计算分析
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摘要
为了研究一阶泰勒展开边界元方法对半潜式平台的水动力性能以及运动响应的预报精度,将其计算结果与商业软件AQWA的计算结果进行比较。在试验结果的基础上,通过对两种计算方法结果的比较分析,表明一阶泰勒展开边界元方法计算结果与AQWA的计算结果吻合较好,而且一阶泰勒展开边界元方法有着较好的收敛速度,可用于半潜式平台水动力分析,本文工作也为该类平台的水动力响应分析提供了参考。
In order to study the prediction accuracy of the first-order Taylor expansion boundary element method for the hydrodynamic performance and the motion response of a semi-submersible platform,the calculation results were compared with those of the commercial software AQWA. On the basis of the experimental results,through the comparative analysis of the results of the two methods,it shows that the results of the first-order Taylor expansion boundary element method are in good agreement with AQWA,in addition,the method has a good convergence speed. The method can be used for the hydrodynamic analysis of a semi-submersible platform and the work in the paper can also provide a reference for the hydrodynamic response analysis of such platform.
In order to study the prediction accuracy of the first-order Taylor expansion boundary element method for the hydrodynamic performance and the motion response of a semi-submersible platform,the calculation results were compared with those of the commercial software AQWA. On the basis of the experimental results,through the comparative analysis of the results of the two methods,it shows that the results of the first-order Taylor expansion boundary element method are in good agreement with AQWA,in addition,the method has a good convergence speed. The method can be used for the hydrodynamic analysis of a semi-submersible platform and the work in the paper can also provide a reference for the hydrodynamic response analysis of such platform.
引文
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[2]HESS J L.Calculation of non-lifting potential flow about arbitrary threedimensional bodies[J].Joural of ship research,1969,8(3):22-44.
[3]CLAUSS F,SCHMITTNER C E,STUTZ K.Freak wave impact on semi submersibles time-domain analysis of motions and forces[C]∥JSOPE,2003,03-266.
[4]徐刚,段文洋.常数分布Rankine源法与二阶绕射问题精度研究[J].哈尔滨工程大学学报,2010,31(9):1144-1152.XU Gang,DUAN Wenyang.Numerical investigation of second-order wave diffraction based on the Rankine source method[J].Journal of Harbin Engineering University,2010,31(9):1144-1152.
[5]DUAN Wenyang.Taylor expansion boundary element method for floating body hydrodynamics[C]∥Proceedings of the27th International Workshop on Water Waves and Floating Bodies.Copenhagen,Denmark,2012.
[6]段文洋,陈纪康,赵彬彬.基于泰勒展开边界元法的深水浮体二阶平均漂移力计算[J].哈尔滨工程大学学报,2015,36(3):302-306.DUAN Wenyang,CHEN Jikang,ZHAO Binbin.Calculation of second-order mean drift loads for the deepwater floating body based on the Taylor expansion boundary element method[J].Journal of Harbin Engineering University,2015,36(3):302-306.
[7]DUAN Wenyang,CHEN Jikang,ZHAO Binbin.Secondorder Taylor expansion boundary element method for the second-order wave diffraction problem[J].Engineering analysis with boundary elements,2015,58:140-150.
[8]DUAN W Y,CHEN J K,ZHAO B B.Second-order Taylor expansion boundary element method for the second-order wave radiation problem[J].Applied ocean research,2015,52:12-26.
[9]陈纪康.基于泰勒展开边界元法的水波与浮体二阶水动力问题数值模拟[D].哈尔滨:哈尔滨工程大学,2015.CHEN Jikang.Numeircal simulation on the second-order hydrodynamic problems based on the Taylor expansion boundary element method[D].Harbin:Harbin Engineering University,2015.
[10]段文洋,王隶加,陈纪康,等.基于泰勒展开边界元法的近水面潜艇垂向二阶波浪力(矩)计算[J].哈尔滨工程大学学报,2017,38(1):8-12.DUAN Wenyang,WANG Lijia,CHEN Jikang,et al.Calculation of vertical second-order drift loads on a submarine floating near the free water surface based on Taylor expansion boundary element method[J].Journal of Harbin Engineering University,2017,38(1):8-12.
[11]戴遗山,段文洋.船舶在波浪中运动的势流理论[M].北京:国防工业出版社,2008.DAI Yishan,DUAN Wenyang.Potential flow theory of ship motions in waves[M].Beijing:National Defense Industry Press,2008.
[12]FONSECA N.Exwave semi-submersible model tests MT2015 F-184-confidential[R].Norwegian Marine Technology Research Institute,2015.
[13]张红松,胡仁喜,康士庭.ANSYS 13.0有限元分析从入门到精通[M].2版.北京:机械工业出版社,2011.ZHANG Hongsong,HU Renxi,KANG Shiting.ANSYS13.0 finite element analysis from entry to master[M].2nd ed.Beijing:Mechanical Industry Press,2011.
[14]常欣,郭春雨,王超,等.Fluent船舶流体力学仿真计算工程应用基础[M].哈尔滨:哈尔滨工程大学出版社,2011:14-17.CHANG Xin,GUO Chunyu,WANG Chao,et al.Fluent ship hydraulic mechanics simulation computational engineering application foundation[M].Harbin:Harbin Engineering University Press,2011:14-17.