Browsing UiS Brage by Author "Xing, Yihan"
Now showing items 1-19 of 19
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Analysis and characterization of swell wave energy converters
Behboodi Jouybari, Mehdi (Master thesis, 2021)In this thesis, a framework for design and characterization of wave energy converters is presented. The theories needed for formulating the ocean wave forces and power take off and control forces are given and the equations ... -
Baseline design of a subsea shuttle tanker system for liquid carbon dioxide transportation
Ma, Yucong; Xing, Yihan; Ong, Muk Chen; Hemmingsen, Tor (Peer reviewed; Journal article, 2021-10)This paper presents the baseline design of a 34,000-tonne subsea shuttle tanker (SST). The SST is proposed as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) ... -
Burst pressure design of the cargo tank used in a novel large subsea freight-glider
Xing, Yihan (Peer reviewed; Journal article, 2021)This paper presents the burst pressure design of the cargo tank used in the University of Stavanger (UiS) Subsea Freight-Glider (USFG). The USFG is an innovative large underwater cargo glider drone that is 50 m long and ... -
CFD Investigation on Hydrodynamic Resistance of a Novel Subsea Shuttle Tanker
Xing, Yihan; Janocha, Marek Jan; Yin, Guang; Ong, Muk Chen (Peer reviewed; Journal article, 2021-12)The Subsea Shuttle Tanker (SST) was proposed by Equinor as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) from existing offshore/land facilities to marginal ... -
Collapse Design Optimisation of Ring-Stiffened Cylindrical Pressure Hulls
Hagen, Kine (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-07-01)The pressure hull is a vital structural component of the underwater vehicle. It enables the underwater vehicle to withstand environmental loadings such as hydrostatic pressure. Pressure hull design seeks maximum strength ... -
Design, Testing and Analysis of a New Pipeline Recovery Tool
Eriksson, Nicolai Bull (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)Pipeline Recovery Tools (PRT’s) are used in decommissioning and recovery of subsea pipelines. The PRT often use a mechanical system to insert and lock itself onto the subsea pipeline. This thesis examines a unique connection ... -
Development of roll stabilization on a large zero-energy freighter-ship using sails.
Dahl Fidje, Erik (Master thesis, 2021)In recent years, research for creating climate-friendly solutions has become more desired. As the transport of cargo by sea is heavily utilized and will continue to be so, this is an area that can be improved. During this ... -
Duplex steel welding in arctic conditions – Correlation of welding parameters in relation to HISC
Czarnacki, Ziemowit (Master thesis, 2021)The second part of XX century has taken a large part of Oil & Gas production to the offshore. The processes and equipment used inland, had to be adapted and optimized for severe marine and subsea conditions. In order to ... -
Duplex steel welding in artic conditions – Correlation of welding parameters in relation to HISC
Czarnacki, Ziemowit; Xing, Yihan (Peer reviewed; Journal article, 2021)Duplex steel is an austenitic-femtic steel alloy commonly used in the offshore and subsea oil and gas industry. Duplex steel provides a unique combination of good mechanical properties and corrosion resistance in sweet and ... -
Dynamic analysis of a two-rotor wind turbine on spar-type floating platform
El Beshbichi, Omar; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2021-07)The dynamic response of a two-rotor wind turbine mounted on a spar-type floating platform is studied. The response is compared against the baseline OC3 single-rotor design. Structural design shows how the two-rotor design ... -
Evaluation of a nonlinear cumulative creep damage model for design applications
Nikolaisen, Amanda Joela Rachel (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-15)Predicting creep damage and remaining life of an engineering design is a complex task. There are many types of creep material models and they provide significantly different predictions. Furthermore, the necessary material ... -
Fatigue Analysis in Topside Pipe Systems Offshore
Knutsen, Vegard (Master thesis, 2021)Safety and reliability are terms generally associated with offshore oil and gas industry, particularly regarding piping where failure could potentially cause catastrophic outcomes. Hence, codes and standards have been ... -
Improving extreme anchor tension prediction of a 10-MW floating semi-submersible type wind turbine, using highly correlated surge motion record
Gaidai, Oleg; Xing, Yihan; Wang, Fang; Wang, Shuaishuai; Yan, Ping; Næss, Arvid (Peer reviewed; Journal article, 2022-07)Extreme value prediction of the load-effect responses of complex offshore structures such as the floating wind turbine (FWT) is crucial in ultimate limit state (ULS) design. This paper considers two cases to understand the ... -
Load mitigation method for wind turbines during emergency shutdowns
Jiang, Zhiyu; Xing, Yihan (Peer reviewed; Journal article, 2021-02)Wind turbines experience countless shutdowns during their lifetimes. A shutdown is a transient process characterised by a pitch-to-feather manoeuvre of three blades. Such a pitch manoeuvre is often collective, open-loop, ... -
Numerical study on controller of offshore wind turbine and its effect on turbine loads
Østlund, Oda Marie (Master thesis, 2021)The primary objective of this thesis is to evaluate the controller behavior of a large-scale wind turbine and investigate how the controller design can affect the fatigue damage for the turbine. In addition, it is interesting ... -
An object-oriented method for fully coupled analysis of floating offshore wind turbines through mapping of aerodynamic coefficients
El Beshbichi, Omar; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2021-07)This work presents a novel object-oriented approach to model the fully-coupled dynamic response of floating offshore wind turbines (FOWTs). The key features offered by the method are the following: 1) its structure naturally ... -
Optimization of the Local Failure Design of Carbon-Fibre Epoxy Composite Curved Plates
Ivanova, Olha (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2021-01-15)This thesis presents the optimization of the local failure design of Carbon-Fiber Epoxy Composite used in the manufacturing of the curved plates. As relatively new and reliable material carbon fiber can be used in different ... -
Preliminary Design and Optimization of Subsea Shuttle Ring-Reinforced Pressure Hull using the Response Surfaces Methodology
Suharmadi (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2021-01)Pipelines and tanker ships are the main hydrocarbons transportation systems operate in the North Sea. Oil and gas fields in remote and harsh locations cannot be served well by these two transportation systems. One of the ... -
Technical- and Economic-Feasibility Analysis of Subsea Shuttle Tanker
Santoso, Tan Aditya Dwi (Master thesis, 2021)This thesis presents the technical and economic feasibility analysis of the subsea shuttle tanker (SST). The SST is proposed as an alternative to subsea pipelines and surface tankers with the primary purpose of transporting ...