摘要：The sheave installation method is an unconventional, reliable engineering technique to safely lower large cluster manifolds to a water depth of over 1500 m. This paper established a numerical model for the sheave installation system dynamics based on the finite-element principle. The analysis first considered the subsea structure mass, while the hydrodynamic forces were calculated using Morison's equation. Furthermore, it accounted for the sensitivity of the critical parameters to the dynamic responses of the entire system, including the amplitude and phase differences between two excitations and the ocean current velocities. The results showed that the finite -element model in OrcaFlex provided accurate solutions compared with the mathematical model, while a prac-tical water depth for the second stage could be obtained by analyzing all the depths. Additionally, an asyn-chronous rise in the amplitude of two excitations placed more tension on the top of the steel cable than a simultaneous increase in the amplitudes and phase differences of the excitations, as well as the current speed. A series of sensitivity analyses were performed to evaluate the influencing factors on the dynamic response of the manifold, offering guidance for ocean engineers on deploying the large equipment.

关键字：Sheave installation method; Subsea manifold; Dynamic response; Sensitivity analyses

ISSN号：0920-4105

卷、期、页：卷: 218

发表日期：2022-11-01

影响因子：4.345800

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,地学领域高质量科技期刊分级目录（国外T1）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING

参与作者：张崇

通讯作者：杨钟山,陈志煌,杨钟山

第一作者：王莹莹

论文类型：期刊论文

论文概要：王莹莹,杨钟山,张崇,陈志煌,杨钟山，Dynamic behavior of the sheave installation process of the large subsea cluster manifold，JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING，2022，卷: 218

论文题目：Dynamic behavior of the sheave installation process of the large subsea cluster manifold