| 船体薄壁梁弯扭耦合振动的流固耦合分析 |
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| 引用本文： | 岳鹏,黎胜,赵德有. 船体薄壁梁弯扭耦合振动的流固耦合分析[J]. 船舶力学, 2009, 13(2) |
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| 作者姓名： | 岳鹏 黎胜 赵德有 |
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| 作者单位： | 大连理工大学船舶工程学院,辽宁大连,116024;大连理工大学船舶工程学院,辽宁大连,116024;大连理工大学船舶工程学院,辽宁大连,116024 |
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| 摘 要： | 采用耦合有限元,边界元法计算水中船体的弯扭耦合振动.文中用一维薄壁梁有限元模拟船体梁,在横剖面处用二维边界元方法计算结构表面卢压,推导出表征流体对振动特性影响的附加质量阵,编制了用流同耦合方法求解船体振动模态的程序.通过与采用ANSYS软件进行耦合场分析以及刘易斯方法得到的振动模念相比较,验证了文中方法的可行性和应用性.
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| 关 键 词： | 弯扭耦合振动 薄壁梁 有限元法 边界元法 流固耦合 |
Fluid-structure interaction analysis of bending-torsion coupling vibration of thin-walled ship girder |
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| YUE Peng,LI Sheng,ZHAO De-you. Fluid-structure interaction analysis of bending-torsion coupling vibration of thin-walled ship girder[J]. Journal of Ship Mechanics, 2009, 13(2) |
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| Authors: | YUE Peng LI Sheng ZHAO De-you |
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| Affiliation: | Department of Naval Architecture;Dalian University of Technology;Dalian 116024;China |
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| Abstract: | A coupled finite element-boundary element method is presented to analyze the bending-torsion coupling vibration of a ship hull in water.A one-dimensional thin-walled beam element is used to model the ship hull.The two-dimensional acoustics boundary element method is employed for the acoustic fluid.Added mass matrix of the fluid is derived to account for the acoustic load.To validate the present ap-proach,a computer code is developed for the vibrational modal analysis of the ship hull and the numerical resul... |
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| Keywords: | bending-torsion coupling vibration thin-walled beam finite element method boundary element method fluid-structure interaction |
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