Browsing UiS Brage by Author "Xing, Yihan"
Now showing items 1-20 of 92
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A 2D model for the study of equilibrium glide paths of UiS Subsea Freight-Glider
Ahmad, Usman Nawaz; Xing, Yihan (Peer reviewed; Journal article, 2021)A planar mathematical model for the analysis of equilibrium glide paths of the UiS subsea freight-glider (USFG) is presented. The model is developed using Simscape Multibody in MATLAB/Simulink to study the ever-changing ... -
ALK-PE: An efficient active learning Kriging approach for wave energy converter power matrix estimation
Ren, Chao; Tan, Jian; Xing, Yihan (Peer reviewed; Journal article, 2023-10)Wave energy is considered one of the most potential renewable energy. In the last two decades, many wave energy converters (WECs) have been designed to harvest energy from the ocean. Different power take-off systems are ... -
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 ... -
Applying a machine learning method for cumulative fatigue damage estimation of the IEA 15MW wind turbine with monopile support structures
Ren, Chao; Xing, Yihan (Peer reviewed; Journal article, 2023)Offshore support structures are critical for offshore bottom-fixed wind turbines, as they bear nearly all the mass and loading of wind turbine systems. In addition, the support structures are generally subjected to a harsh ... -
Assessment of a novel PTO system for swell energy convertors using digital twin modelling
Ren, Chao; Xing, Yihan; Moen, Lyder (Peer reviewed; Journal article, 2023)There is no lack of ideas and prototypes for wave energy converters (WECs). However, existing WECs are designed to extract energy from waves at normal to high frequencies and typically focus on close-to-shore steep waves ... -
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) ... -
Bending moment and efficient fatigue assessment in a Subsea Shuttle Tanker under the effect of waves
Patel, Karan Sandipkumar (Master thesis, 2023)The subsea shuttle tanker (SST) is the next-generation autonomous submarine designed to transport liquid CO2 from land/offshore facilities to the smaller fields for injection. Unlike normal shuttle tankers, which are highly ... -
Bivariate statistics of floating offshore wind turbine dynamic response under operational conditions
Xu, Xiaosen; Wang, Fang; Gaidai, Oleg; Næss, Arvid; Xing, Yihan; Wang, Junlei (Peer reviewed; Journal article, 2022)FOWT (Floating offshore wind turbines) belong to the modern offshore wind energy industry generating green renewable energy. Accurate extreme loads and response prediction during power generation is an important design ... -
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 ... -
A case study of offshore wind turbine positioning optimization methodology using a novel multi-stage approach
Xu, Xiaosen; Du, Lin; Zhang, Zhongyu; Gu, Jiayang; Xing, Yihan; Gaidai, Oleg; Dou, Peng (Peer reviewed; Journal article, 2022)This investigation maximize the annual energy production (AEP) of a wind farm’s layout at a specific site using a novel multi-stage approach. The downstream wind turbines’ energy production decreases due to the reduced ... -
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 ... -
Characterisation of extreme load responses of a 10-MW floating semi-submersible type wind turbine
Xing, Yihan; Wang, Shuaishuai; Karuvathil, Anuraj; Balakrishna, Rajiv; Gaidai, Oleg (Peer reviewed; Journal article, 2023)The global average size of offshore wind turbines has increased steadily from 1.5 MW to 6 MW from 2000 to 2020. With this backdrop, the research community has recently looked at huge 10–15 MW class floating offshore wind ... -
Characterization and Optimization of Control System and Extreme Value Analysis of a Wind Turbine
Balakrishna, Rajiv (Master thesis, 2022)The global hunger for energy has only been rising every day as we progress more into adopting superior and better technology to make lives better and easier. As more countries tread the path of industrialization, the need ... -
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 ... -
Comparative dynamic analysis of two-rotor wind turbine on spar-type, semi-submersible, and tension-leg floating platforms
El Beshbichi, Omar; Xing, Yihan; Ong, Muk Chen (Peer reviewed; Journal article, 2022)Multi-rotor floating offshore wind turbines have been recently proposed as an innovative technology to further reduce the cost of offshore wind energy. Even though examples of commercial prototypes are present, the literature ... -
A comparison study of power performance and extreme load effects of large 10-MW offshore wind turbines
Wang, Shuaishuai; Xing, Yihan; Karuvathil, Anuraj; Gaidai, Oleg (Peer reviewed; Journal article, 2023)The utilisation of offshore wind turbines has rapidly increased in the last decade, which has resulted in a steady increase in wind turbine sizes. The global average offshore wind turbine size has increased from 1.5 MW to ... -
A compensation scheme applied on wind turbine blade pitch control for the reduction of non-torque main shaft loads
Balakrishna, Rajiv; Xing, Yihan (Peer reviewed; Journal article, 2021)It has been well established that non-torque main shaft loads influence the internal drive train loads. This paper proposes a scheme that compensates for non-torque loads in the blade pitch controller. The compensation ... -
Contact stresses associated with the wedge-lock mechanism in a prototype subsea pipeline recovery tool
Xing, Yihan; Eriksson, Nicolai Bull; Ong, Muk Chen; Knutsen, C. (Peer reviewed; Journal article, 2019)This paper examines the contact stresses associated with the wedge-lock mechanism in a prototype subsea pipeline recovery tool (PRT) through numerical methods and experimental testing. The prototype PRT studied combines ... -
The correlation and determination matrices associated with the burst design of a subsea carbon-fibre-epoxy composite flow-line
Xing, Yihan; Xu, Wenxin; Buratti, Valentina (Peer reviewed; Journal article, 2019)This paper examines the correlation and determination matrices of the burst design in a subsea carbon-fibre-epoxy composite flow-line. A case study of a 4" flow-line is investigated. The correlation and determination ... -
Deconvolution approach for floating wind turbines
Liu, Zirui; Gaidai, Oleg; Sun, Jiayao; Xing, Yihan (Peer reviewed; Journal article, 2023-05)Green renewable energy is produced by floating offshore wind turbines (FOWT), a crucial component of the modern offshore wind energy industry. It is a safety concern to accurately evaluate excessive weights while the FOWT ...