Browsing UiS Brage by Author "Xing, Yihan"
Now showing items 21-40 of 92
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Design and analysis of a hybrid timber-steel floating substructure for a 15 MW semisubmersible-type FWT
Yousef, Hassan Hasan (Master thesis, 2023)Wind energy has developed to be among the most promising sources of renewable energy. Furthermore, floating offshore wind turbines have presented the opportunity for higher power production in intermediate (45-150 m) and ... -
Design and analysis of a hybrid timber-steel floating substructure for a 15 MW TLP-type FWT.
Sande, Oskar (Master thesis, 2023)Offshore wind has been an important topic for harvesting renewable energy in the last few years. Due to the low terrain roughness and large area, offshore wind is very attractive. This thesis provides the concept design ... -
Design and Dynamic Analysis of a Novel Subsea Shuttle Tanker
Ma, Yucong (PhD thesis UiS;, Doctoral thesis, 2023)Underwater pipelines, tanker ships, and liquefied gas carriers have traditionally been employed to transport hydrocarbons between offshore oil and gas facilities and onshore locations. However, both methods come with ... -
Design of ROV Frame, Enclosures and Manipulator
Padillo, Flavio III; Høyvik, Sveinung Laupland; Dolmen, Magnus (Bachelor thesis, 2024)This bachelor thesis is written in collaboration with the student organization UiS Subsea, a project that requires joint effort between the different engineering disciplines to be able to manufacture a functional end ... -
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 ... -
Determination of extreme responses of USFG’s equilibrium glide path hovering in ocean current
Ahmad, Usman Nawaz; Xing, Yihan; Wang, Shuaishuai (Peer reviewed; Journal article, 2022)The UiS subsea-freight glider (USFG) is a state-of-the-art autonomous vessel designed to be an alternative to existing transportation technologies and serve the demands of small-scale fields for CO2 transportation. Generally, ... -
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 and validation of a multi-body floating wind turbine using the moving frame method
Grindheim, Ole-Martin; Xing, Yihan; Impelluso, Thomas (Peer reviewed; Journal article, 2023)This research applies the moving frame method (MFM) to the multi-body dynamic analysis of an OC3 phase IV spar buoy with the NREL 5MW turbine. Further, it verifies previous results obtained through numerical comparisons ... -
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 ... -
Dynamic design and analysis of subsea CO2 discharging flowline for cargo submarines used for CCS in low-carbon and renewable energy value chains
Dai, Tianjiao; Yang, Shou; Xing, Yihan; Ma, Yucong (Peer reviewed; Journal article, 2022)Developing offshore low carbon and renewable energy value chains to realize a net-zero energy future requires combining offshore renewable energy and carbon capture storage (CCS) solutions. The subsea shuttle tanker (SST) ... -
Energy efficient design of an SST-flowline system using a coupled dynamic analysis approach
Dai, Tianjiao; Zhang, Jiaxuan; Ma, Yucong; Xing, Yihan (Peer reviewed; Journal article, 2024)The Subsea Shuttle Tanker (SST) is an extra-large freight submarine designed for transporting liquid CO2 to remote marginal fields. SST's offloading operation depth is limited to its structure integrity and economic ... -
Estimation of Extreme Load Responses in a Gearbox of 10-MW Floating Offshore Wind Turbine
Karuvathil, Anuraj (Master thesis, 2022)This thesis studies the extreme load responses experienced by a 10-MW floating wind turbine situated in the North sea. With a plan to minimise fossil fuels and redefine the energy sector by adopting more safe, efficient, ... -
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 ... -
An evaluation of key challenges of CO2 transportation with a novel Subsea Shuttle Tanker
Ma, Yucong; Xing, Yihan; Hemmingsen, Tor Henning (Peer reviewed; Journal article, 2021)Recently, a novel Subsea Shuttle Tanker (SST) concept has been proposed to transport carbon dioxide (CO2) from ports to offshore oil and gas fields for either permanent storage or enhanced oil recovery (EOR). SST is a large ... -
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 ... -
Field-specific Technical and Economic Feasibility Analysis of Subsea Shuttle Tanker
Undstad, Fredrik Hovden (Master thesis, 2022)This master thesis presents a Field-specific Technical and Economic Feasibility Analysis of a Subsea Shuttle Tanker. Several carbon capture and storage projects are being developed in Norway and worldwide. A Subsea Shuttle ... -
Future world cancer death rate prediction
Gaidai, Oleg; Yan, Ping; Xing, Yihan (Peer reviewed; Journal article, 2023-01)Cancer is a worldwide illness that causes significant morbidity and death and imposes an immense cost on global public health. Modelling such a phenomenon is complex because of the non-stationarity and complexity of cancer ... -
Gaidai-Xing reliability method validation for 10-MW floating wind turbines
Gaidai, Oleg; Xing, Yihan; Xu, Jingxiang; Balakrishna, Rajiv (Peer reviewed; Journal article, 2023)In contrast to well-known bivariate statistical approach, which is known to properly forecast extreme response levels for two-dimensional systems, the research validates innovative structural reliability method, which is ...