Blar i UiS Brage på forfatter "Li, Lin"
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Assessment of operational limits : Effects of uncertainties in sea state description
Li, Lin; Haver, Sverre Kristian; Berlin, Nikita (Peer reviewed; Journal article, 2021-02)For operations dominated by waves, operational limits are normally expressed in terms of allowable sea state parameters, such as the significant wave height (Hs) and spectral peak period (Tp). The allowable sea states need ... -
Comparative study of five commonly used gravity type fish cages under pure current conditions
Cheng, Hui; Li, Lin; Ong, Muk Chen (Peer reviewed; Journal article, 2022-04)Gravity type fish cages have been commonly used in marine aquaculture for years. However, only limited research efforts have been made to assess the influences of different design parameters on the structural responses of ... -
Comparative study on two deployment methods for large subsea spools
Li, Lin; Zhu, Xinying; Parra, Carlos Andres; Ong, Muk Chen (Peer reviewed; Journal article, 2021-08)The demand for subsea spool deployment is increasing with the expansion of offshore projects. For a project to install multiple spools, different deployment methods can be used. The choice of method may influence the safety ... -
Development of a coupling algorithm for fluid-structure interaction analysis of submerged aquaculture nets
Cheng, Hui; Ong, Muk Chen; Li, Lin; Chen, Hao (Peer reviewed; Journal article, 2021-12)A coupling algorithm between two open-source numerical toolboxes, i.e., OpenFOAM and Code_Aster, is implemented for fluid-structure interaction analysis of submerged nets. This algorithm is developed to handle the wake ... -
Development of Advanced Numerical Tools for Dynamic Analysis of Aquaculture Structures
Cheng, Hui (PhD thesis UiS;, Doctoral thesis, 2022-04)Numerical methods to accurately predict dynamic responses of marine aquaculture structures are essential in the engineering design process, because these structures can be subjected to large wave and current loads in the ... -
Dynamic Analysis and Extreme Response Evaluation of Lifting Operation of the Offshore Wind Turbine Jacket Foundation Using a Floating Crane Vessel
Chen, Mingsheng; Yuan, Guibo; Li, Chun Bao; Zhang, Xianxiong; Li, Lin (Peer reviewed; Journal article, 2022)The jacket is the most widely-used fixed foundation for offshore wind turbines due to its superior strength and low installation cost in relatively deep waters. Floating crane vessels are commonly used to install jacket ... -
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 analysis of flexible gravity-based fish cages under accidental failures in the mooring system
Dewan, Pulkit (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)A growing population needs an increasing amount of high-protein and nutritious food. Having acknowledged that, there is a substantial increase in seafood production in the world today. Due to spatial and environmental ... -
Dynamic analysis of lift-off operation of a subsea spool from a barge
Karatas, Ismail Gokay (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-07-15)The lift-off operation faces great operational challenges due to the harsh environment in the North Sea. Especially, the operation becomes more susceptible to environmental conditions when the installation method involves ... -
Dynamic Analysis of Splash-zone Crossing Operation for a Subsea Template
Amer, Adham M.; Li, Lin; Zhu, Xinying (Peer reviewed; Journal article, 2022)Subsea templates are steel structures used to support subsea well components. Normally, offshore crane vessels are employed to install them to the target location on the seabed. Crossing the splash-zone during the lowering ... -
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 ... -
Effects of mooring line breakage on dynamic responses of grid moored fish farms under pure current conditions
Cheng, Hui; Li, Lin; Ong, Muk Chen; Aarsæther, Karl Gunnar; Sim, Jaesub (Peer reviewed; Journal article, 2021)Due to the lack of sheltered area, Norwegian fish farms are expanding to more exposed and remote sites. The severe environmental conditions in exposed sites can increase the risk of structural failure during aquaculture ... -
Feasibility Study of a Novel Open Ocean Aquaculture Ship Integrating with a Wind Turbine and an Internal Turret Mooring System
Liu, Hanyu; Chen, Mingsheng; Han, Zhaolong; Zhou, Hao; Li, Lin (Peer reviewed; Journal article, 2022)Marine aquaculture has been expanded into more remote areas due to the increasing demand for high value-added fish products, bringing more challenges in fuel supply and mooring safety to open ocean aquaculture farms. ... -
Hull Shape Optimization of Point Absorber Wave Energy Converters Using Open Source Programs
Eiane, Grete (Master thesis, 2021)Wave energy is harnessed during the transport and capture of waves at the ocean surface. It can potentially be a sustainable global energy source in the future. Wave Energy Converters (WEC) is one technology to generate ... -
Hydrodynamic performance optimization of semi-submersible floaters for offshore wind turbines
Hassani, Milad (Master thesis, 2022)Floating structures have become viable alternatives for supporting wind turbines as offshore wind projects move deeper into the water. The wind is prevalent in deep water (depths > 60 m) all around the world. Because of ... -
IMPLEMENTATION OF MACHINE LEARNING IN ASSESSMENT OF OPERATIONAL SEA STATES FOR SPLASH-ZONE CROSSING OF A SUCTION ANCHOR
Kababi, Hooman (Master thesis, 2024)This thesis investigates two methods generally used to determine allowable sea states for offshore lifting operations with the primary aim of enhancing operational efficiency and decision-making through the implementation ... -
Long Term Response Analyses of a Jacket Structure with Focus on a Peak Over Threshold Approach
Eltervaag, Andre (Master thesis, 2022)This thesis investigates the use of long term analysis to estimate the q-probability responses of a non-linear problem. The structure subjected to the investigations is a realistic jacket found in the Norwegian Continental ... -
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 and risk analysis of the lifting operation of a subsea template
Lervik, Martin Sande (Master thesis, 2022)Two different templates, template A and template B, for subsea oil and gas production are studied in this work. Numerical time-domain simulations for the crossing of the splash zone are run in OrcaFlex. Template A has ... -
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 ...