| 内流对顶张力立管动力响应影响分析 |
| |
| 引用本文： | 李效民,郭海燕,孟凡顺.内流对顶张力立管动力响应影响分析[J].船舶力学,2010,14(9):1021-1030. |
| |
| 作者姓名： | 李效民 郭海燕 孟凡顺 |
| |
| 作者单位： | 中国海洋大学工程学院,青岛,266100;中国海洋大学海洋地球科学学院,青岛,266100 |
| |
| 基金项目： | Supported by the High Technology Research and Development Program of China(Grant No.2006AA09Z356 and No.2007AA09Z313) |
| |
| 摘 要： | 文章分析了内流对顶张力立管在波浪和海流激励下的动力响应的影响.考虑内部流动流体的动能采用功能原理建立了立管的运动控制方程.然后采用伽辽金有限元法得到了非线性矩阵方程,并在时域内编制了相应的求解程序.最后对立管的动力特性和动力响应进行了详细分析,主要分析了内流等对其的影响.结果发现内流对动力响应有重大影响,其影响在分析中不可忽略.
|
| 关 键 词： | 顶张力立管 内流 动力响应 |
Effect of Internal Flow on the Dynamic Behavior of Top Tensioned Riser |
| |
| LI Xiao-min,GUO Hai-yan,MENG Fan-shun.Effect of Internal Flow on the Dynamic Behavior of Top Tensioned Riser[J].Journal of Ship Mechanics,2010,14(9):1021-1030. |
| |
| Authors: | LI Xiao-min GUO Hai-yan MENG Fan-shun |
| |
| Institution: | LI Xiao-min1,GUO Hai-yan1,MENG Fan-shun2(1 College of Engineering,Ocean University of China,Qingdao 266100,China,2 College of Marine Geo-science,China) |
| |
| Abstract: | The effect of the internal flow on the dynamic behavior of a top tensioned riser (TTR) un-der the excitation of current and wave forces is analyzed. The governing equation of the riser is de-rived based on virtual work-energy principles and the kinetic energy of internal flow is considered in the equation. Then the Galerkin finite element approximation is implemented to derive the nonlin-ear matrix equation and the corresponding numerical program which solves the equation in time do-main is compiled. Finally, the dynamic characteristic and dynamic behavior of the riser are analyzed in detail and the effect of internal flow on the riser behavior is given special attention in the analy-sis. It is found that the internal flow has great effect on the riser behavior and its effect on the riser cannot be neglected. |
| |
| Keywords: | top tensioned riser (TTR) internal flow dynamic behavior |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
