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| 输运流体海洋立管的动力特性 | |
| 引用本文： | 李大雪,张永良. 输运流体海洋立管的动力特性[J]. 管道技术与设备, 2006, 0(5): 18-20 |
| 作者姓名： | 李大雪 张永良 |
| 作者单位： | 清华大学,水利水电工程系水沙科学与水利水电工程国家重点实验室,北京,100084;清华大学,水利水电工程系水沙科学与水利水电工程国家重点实验室,北京,100084 |
| 基金项目： | 教育部跨世纪优秀人才培养计划 |
| 摘 要： | 从流体的动量方程出发,考虑流体和管道的耦合,推导出输运流体海洋立管的偏微分运动方程。用Hermite插值函数和Galerkin法离散运动方程建立海洋立管动力运动的有限元模型。然后,利用该模型研究管内气柱流对固有频率的影响。计算结果表明:立管内出现气柱流时,固有频率随气柱位置的不同而明显变化。 |
| 关 键 词： | 海洋立管 输运流体 固有频率 气柱 |
| 文章编号： | 1004-9614（2006）05-0018-03 |
| 收稿时间： | 2006-04-08 |
| 修稿时间： | 2006-05-11 |
Dynamic Characteristics of Marine Risers Conveying Fluid |
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| LI Da-xue,ZHANG Yong-liang. Dynamic Characteristics of Marine Risers Conveying Fluid[J]. Pipeline Technique and Equipment, 2006, 0(5): 18-20 | |
| Authors: | LI Da-xue ZHANG Yong-liang |
| Affiliation: | State Key Laboratory of Hydroscience and Hydraulic Engineering,Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China |
| Abstract: | Based on the flow moment equation,developed the lateral motion equation of a marine riser by considering the coupling of the fluid and the pipe.By using the Hermite interpolation,the Galerkin method was adopted to discretize the motion equation.Then,the model was used to investigate the effects of air column flow on the natural frequency of the riser.The results show that when an air column flow occurs,the natural frequency of the riser changes with the movement of the air column. |
| Keywords: | marine riser conveying fluid natural frequency air column |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |