摘要：The subsea suspended manifold designed to replace the traditional foundation structure with the buoys is a new generation subsea production system that can be suspended at a certain height from the seafloor and rapidly recycled by its own buoyancy. Due to complex environmental conditions, its hydrodynamic performance in the splash zone is extremely important for the safety of the whole installation process. In this paper, the mathematical model for the dynamic analysis of the seawater ingress process of the single-layer pre-set horizontal cabin is proposed based on the different center of gravity positions of the buoy. Meanwhile, the theoretical analysis of fiber cable is divided into infinite differential units by the discretization method, and the formulae of the horizontal displacement of the subsea suspended manifold are presented. In addition, the simulations are carried out to verify the rules of the dynamic responses on the subsea suspended manifold system with the consideration of the environmental conditions in the South China Sea. Comparing with the calculated value of the mathematical model of the cabin water ingress, the error of the simulation result by use of FLUENT is about 5.47%. Furthermore, the wave height is greater than the current impact on the lowering manifold system and the azimuth angle of the installation vessel is aligned with the direction of the environmental load.

关键字：subsea suspended manifold; lowering installation; seawater ingress; splash zone; dynamic response

ISSN号：0890-5487

卷、期、页：卷: 36期: 4页: 553-564

发表日期：2022-08-01

影响因子：1.201300

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：CHINA OCEAN ENGINEERING

参与作者：杨超,赵晓宇

通讯作者：杨钟山,尹建喜,胡洋东

第一作者：王莹莹

论文类型：期刊论文

论文概要：王莹莹,杨超,杨钟山,赵晓宇,尹建喜,胡洋东，Dynamic Analysis of A Subsea Suspended Manifold Going Through Splash Zone During Installation，CHINA OCEAN ENGINEERING，2022，卷: 36期: 4页: 553-564

论文题目：Dynamic Analysis of A Subsea Suspended Manifold Going Through Splash Zone During Installation