A numerical study on the installation configuration design of steep wave riser (SWR) in deep water

被引：0

作者：

Jia, Jichuan ^{[1
]}

Gu, Jijun ^{[1
]}

Chen, Leilei ^{[1
]}

Gao, Lei ^{[1
,2
]}

Wang, Shujiang ^{[1
]}

机构：

[1] China Univ Petr, Coll Mech & Transportat Engn, 18 Fuxue Rd, Beijing 102249, Peoples R China

[2] CNOOC Res Inst, Beijing, Peoples R China

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART M-JOURNAL OF ENGINEERING FOR THE MARITIME ENVIRONMENT | 2023年 / 237卷 / 03期

关键词：

Steep wave riser; finite difference method; parametric analysis; engineering evaluation; optimal configuration;

D O I：

10.1177/14750902221129326

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

A new calculation procedure is presented for the structural analysis of a steep wave riser (SWR) system. The equilibrium equation of the SWR is established based on Minimum total potential energy principle. The coupled equations are discretized by the finite difference method and then solved by Newton-Raphson technique. The accuracy of the numerical model is verified by Orcaflex software. Traditional parametric analysis of buoyancy factor, buoyancy section's length, buoyancy section's location and ocean current velocity are performed. An idea of engineering evaluation of the SWR's working condition from the perspective of hang-off angle, tension, and bending radius is proposed. Through comparison, it is found that the hang-off angle is the main parameter affecting the installation safety of the SWR. And the allowable working water depth and installation span are determined. In addition, the optimization idea of the SWR's configuration based on S-shape coefficient and hang-off angle is put forward, and the optimal configuration of a specific SWR is analyzed.

引用

页码：746 / 763

页数：18

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