Advanced Research in Flexible Riser and Pipelines

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Ocean Engineering".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 974

Special Issue Editors


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Guest Editor
College of Civil Engineering and Architecture, Zhejiang University, Zhejiang, China
Interests: marine structural engineering; offshore artificial intelligence development and application; subsea pipelines and risers; construction of marine big data; flexible pipelines and marine and umbilical cables
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
College of Civil Engineering, Zhejiang University of Technology, Zhejiang, China
Interests: subsea pipelines and risers; flexible pipe and umbilical cables; offshore pipeline laying
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the continuous development of ocean resources, marine slender structures play crucial roles in the offshore industry. Flexible risers and pipelines have both been widely used for the subsea energy transportation with the rapid development of subsea engineering technology, and they are designed as fluid transportation tools between offshore production units for the conventional fuels industry. They are considered to be an efficient solution in terms of technical and economic performance due to their easy and fast laying procedure, durability and recoverability. As the design of flexible risers and pipelines continue to pose opportunities and challenges due to harsh marine environments, many researchers and engineers keep on exploring and advancing new design and analysis methods for flexible risers and pipelines. This Special Issue will focus on covering these topics to address the developments in the field.

Prof. Dr. Yong Bai
Dr. Weidong Ruan
Guest Editors

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Keywords

  • offshore risers, pipelines and moorings
  • flexible pipes and umbilical cables
  • section design
  • installation technique
  • dynamics response
  • fatigue analysis
  • structure stability and safety
  • structural analysis and optimization
  • subsea engineering and polar engineering
  • pipe–soil interaction

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Published Papers (1 paper)

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Research

29 pages, 9684 KiB  
Article
Decoupled Analysis of a Multi-Layer Flexible Pipeline Buried in Clay Subjected to Large Lateral Soil Displacement
by Eduardo Ribeiro Malta, Xiaoyu Dong and Hodjat Shiri
J. Mar. Sci. Eng. 2024, 12(7), 1238; https://doi.org/10.3390/jmse12071238 - 22 Jul 2024
Viewed by 683
Abstract
Multilayered flexible subsea pipelines may experience significant lateral movements due to manmade and environmental geohazards. These pipelines incorporate several structural and protective layers to resist different loads, and may require additional protection such as trenching, rock placement, or burial. In practice, simplifications are [...] Read more.
Multilayered flexible subsea pipelines may experience significant lateral movements due to manmade and environmental geohazards. These pipelines incorporate several structural and protective layers to resist different loads, and may require additional protection such as trenching, rock placement, or burial. In practice, simplifications are considered due to the complexities and uncertainties involved in the multi-layer pipe structure and the surrounding soil, compromising the pipe structure or the soil behavior. These simplifications are applied either on the pipe by assuming a rigid section or on the soil by representing it as elastic springs, which may result in inaccuracies. This study proposes a decoupled methodology combining the Coupled Eulerian–Lagrangian (CEL) model for soil displacement with a small-strain finite element analysis of the flexible pipe. This approach aims to accurately capture cross-sectional deformations and local stresses due to soil movement while maintaining reasonable computational effort. A parametric analysis was conducted to assess the impact of several variables on failure risk. The deformed cross-section was then used for a collapse analysis to determine critical loads at maximum operational depth. The study showed that modeling parameters such as soil strength and internal diameter might significantly influence pipe failure and the risk of collapse. Full article
(This article belongs to the Special Issue Advanced Research in Flexible Riser and Pipelines)
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