Blar i UiS Brage på forfatter "Jiang, Zhiyu"
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Analysis of spar and semi-submersible floating wind concepts with respect to human exposure to motion during maintenance operations
Kaptan, Mert; Skaare, Bjørn; Jiang, Zhiyu; Ong, Muk Chen (Peer reviewed; Journal article, 2022)Floating offshore wind turbines (FOWTs) are expected to experience onsite maintenances and inspections during their lifetimes. To carry out offshore maintenance activities, a crew will be transferred to an FOWT and spend ... -
Comparison of spar and semi-submersible floating wind turbine concepts with respect to seasickness of the maintenance personnel
Kaptan, Mert (Master thesis, 2021)Floating offshore wind turbines (FOWTs) are remotely located structures that are operating without humans on board. The technicians are expected to be on board from time to time throughout the life cycle of FOWTs for ... -
Dynamic Analysis of a Vessel-shaped Fish Farm for Open Sea
Høiland, Andreas Vangdal (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-15)In recent years, aquaculture has been the fastest-growing animal food producing industry in the world. However, the absence of suitable production areas might potentially become the most limiting factor for future production ... -
Dynamic response analysis of a catamaran installation vessel during the positioning of a wind turbine assembly onto a spar foundation
Jiang, Zhiyu; Li, Lin; Gao, Zhen; Halse, Karl Henning; Sandvik, Peter Christian (Journal article; Peer reviewed, 2018-05-11)Installation of floating wind turbines is a challenging task. The time and costs are closely related to the installation method chosen. This paper investigates the performance of an efficient installation concept – a ... -
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, ... -
Metocean conditions at two Norwegian sites for development of offshore wind farms
Cheynet, Etienne; Li, Lin; Jiang, Zhiyu (Peer reviewed; Journal article, 2024)This paper examines metocean data from NORA3, a state-of-the-art wind and wave hindcast dataset for Northern Europe. Two offshore Norwegian areas, Utsira Nord (UN) and Sørlige Nordsjø II (SN2), are investigated. Both areas ... -
Numerical analysis of a vessel-shaped offshore fish farm
Li, Lin; Jiang, Zhiyu; Høiland, Andreas Vangdal; Ong, Muk Chen (Peer reviewed; Journal article, 2018)The aquaculture industry is aiming to move fish farms from nearshore areas to open seas because of many attractive advantages in the open water. However, one major challenge is to design the structure to withstand the ... -
Numerical study of a concept for major repair and replacement of offshore wind turbine blades
Jiang, Zhiyu; Li, Lin; Guachamin-Acero, Wilson (Peer reviewed; Journal article, 2020-03)Repair and replacement of offshore wind turbine blades are necessary for current and future offshore wind turbines. To date, repair activities are often conducted using huge jack-up crane vessels and by applying a reverse ...