Natural vibration analysis of tensioned risers by segmentation method

被引：23
作者：
Sejanovic, I. [1 ]
Ljustina, A. M. [1 ]
Parunov, J. [1 ]
机构：
[1] Univ Zagreb, Fac Mech Engn & Naval Architecture, Zagreb 10000, Croatia
来源：
OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES | 2006年 / 61卷 / 05期
关键词：
D O I：
10.2516/ogst:2006004
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The natural vibration of deepwater tensioned uniform risers is analysed. The riser is considered as both a cable and a beam due to the fairly weak flexural stiffness. The exact and asymptotic solutions of the cable differential equation are presented. The beam vibration is determined by modifying the cable solution for each half-wave of the natural mode which are called segments. The simplified analytical procedure is verified by the finite element method. Very valuable conclusions are drawn on riser dynamic behaviour in the lower and higher frequency domain. The main application of the study is the assessment of forced vortex-induced riser vibration.
引用
收藏
页码：647 / 659
页数：13
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