Browsing NTNU Open by Author "Xing, Yihan"
Now showing items 1-16 of 16
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A 5MW direct-drive generator for floating spar-buoy wind turbine: Drive-train dynamics
Sethuraman, Latha; Xing, Yihan; Venugopal, Vengatesan; Gao, Zhen; Mueller, Markus; Moan, Torgeir (Journal article; Peer reviewed, 2017)This article proceeds with investigations on a 5 MW direct-drive floating wind turbine system (FWTDD) that was developed in a previous study. A fully integrated land-based direct-drive wind turbine system (WTDD) was created ... -
An inertia-capacitance beam substructure formulation based on bond graph terminology with applications to rotating beam and wind turbine rotor blades
Xing, Yihan (Master thesis, 2010)In this thesis, an Inertia-Capacitance (IC) beam substructure formulation based on bond graph terminology is developed. The IC beam is formulated in the centre of mass body fixed coordinate system which allows for easy ... -
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 ... -
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 ... -
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 ... -
Determination of extreme responses of USFG’s equilibrium glide path hovering in ocean current
Ahmad, Usman Nawaz; Xing, Yihan; Wang, Shuaishuai (Journal article; Peer reviewed, 2022) -
Effects of floating sun gear in a wind turbine’s planetary gearbox with geometrical imperfections
Rasekhi Nejad, Amir; Xing, Yihan; Guo, Yi; Keller, Jonathan; Gao, Zhen; Moan, Torgeir (Journal article; Peer reviewed, 2015)This paper addresses the effect of gear geometrical errors in wind turbine planetary gearboxes with a floating sun gear. Numerical simulations and experiments are employed throughout the study. A National Renewable Energy ... -
Extreme riser experimental loads caused by sea currents in the Gulf of Eilat
Sun, Jiayao; Gaidai, Oleg; Wang, Fang; Næss, Arvid; Wu, Yu; Xing, Yihan; van Loon, Eric-Jan; Medina, Ausberto Rivera; Wang, Junlei (Peer reviewed; Journal article, 2022)Risers are widely used in offshore industry and are subjected to dynamic environmental loads. Robust prediction of extreme riser external loading under the action of sea currents and subsequently VIV (vortex-induced ... -
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)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 ... -
Modelling and analysis of the gearbox in a floating spar-type wind turbine
Xing, Yihan (Doktoravhandlinger ved NTNU, 1503-8181; 2013:128, Doctoral thesis, 2013)This thesis seeks to reveal and investigate important drivetrain dynamics in relation to offshore wind turbines. Emphasis is placed on drivetrains of the spar-type floating wind turbines (FWTs). FWTs are proposed to be ... -
A novel design approach for estimation of extreme load responses of a 10-MW floating semi-submersible type floating wind turbine
Balakrishna, Rajiv; Gaidai, Oleg; Wang, Fang; Xing, Yihan; Wang, Shuaishuai (Journal article; Peer reviewed, 2022)Offshore structures are constructed to withstand extreme wind and wave-induced loads, so studying these extreme loads is vital as it allows offshore structures, e.g., wind turbines, to be designed and operated with minimal ... -
A novel design approach for estimation of extreme responses of a subsea shuttle tanker hovering in ocean current considering aft thruster failure
Xing, Yihan; Gaidai, Oleg; Ma, Yucong; Næss, Arvid; Wang, Fang (Peer reviewed; Journal article, 2022)The subsea shuttle tanker (SST) is an innovative 33 600-ton underwater cargo tanker designed to transport CO2 to marginal fields. During offloading, the SST will approach and hover in the vicinity of the subsea well. A ... -
On-Board Trend Analysis for Cargo Vessel Hull Monitoring Systems
Gaidai, Oleg; Storhaug, Gaute; Wang, Fang; Yan, Ping; Naess, Arvid; Wu, Yu; Xing, Yihan; Sun, Jiayao (Peer reviewed; Journal article, 2022)With the increased focus on sustainability, de-carbonization and digitalization also the shipping industry is scrutinized. High steel weight implies high initial CO2 footprint but also higher operational CO2 footprint. ... -
Technical and Economic Feasibility Analysis of a Conceptual Subsea Freight Glider for CO2 Transportation
Klis, Pawel Janusz; Wang, Shuaishuai; Xing, Yihan (Peer reviewed; Journal article, 2022)This study analyses the technical and economic aspects of a novel subsea freight glider (SFG). The SFG is an excellent replacement for tanker ships and submarine pipelines transporting liquefied CO2. The main aim of the ... -
Time Domain Modeling and Analysis of Dynamic Gear Contact Force in a Wind Turbine Gearbox with Respect to Fatigue Assessment
Dong, Wenbin; Xing, Yihan; Moan, Torgeir (Journal article; Peer reviewed, 2012)The gearbox is one of the most expensive components of the wind turbine system. In order to refine the design and hence increase the long-term reliability, there has been increasing interest in utilizing time domain ... -
Time domain-based gear contact fatigue analysis of a wind turbine drivetrain under dynamic conditions
Dong, Wenbin; Xing, Yihan; Moan, Torgeir; Gao, Zhen (Journal article; Peer reviewed, 2013)This paper presents a general approach to predict the contact fatigue life of the gears in the drive-train system of a wind turbine under dynamic conditions. A simplified predictive pitting model that estimates service ...