Blar i PhD theses (TN-IKM / TN-IMBM) på tittel
Viser treff 18-30 av 30
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Life extension of offshore structures : A conceptual framework and fatigue damage models
(PhD thesis UiS;, Doctoral thesis, 2019-09)Many offshore structures worldwide are approaching or have already exceeded their original design life. It is important to use the existing infrastructure efficiently and to estimate remaining service life accurately. ... -
Load sequence effects and mixed-mode fatigue crack growth in offshore structures
(PhD thesis UiS;, Doctoral thesis, 2019-12)An increasing number of the offshore structures in the North Sea are being operated in a life extension phase, which means that their original design life has been exceeded. As the structures age, they are deteriorating, ... -
Mineral Replacements in Flooding Experiments Linked to Enhanced Oil Recovery in Chalk
(PhD thesis UiS;, Doctoral thesis, 2018-11)Seawater injection into chalk-reservoirs on the Norwegian Continental Shelf has increased the oil recovery and reduced seabed subsidence. In the researchfield of Improved Oil Recovery (IOR) the effects of injection of ... -
Numerical Modeling and Dynamic Analysis of Two-Rotor Floating Offshore Wind Turbines
(PhD thesis UiS;682;, Doctoral thesis, 2023)The exploitation of offshore wind in deep waters by means of floating wind turbines is steadily gaining traction as a suitable option to produce renewable energy. Among the innovative technologies recently proposed, two-rotor ... -
Numerical Modelling and Global Response Assessment of Floating Docks towards Efficient, Safer and Autonomous Docking Operations
(PhD thesis UiS;, Doctoral thesis, 2024)Floating docks are known for their construction efficiency and operational flexibility compared to traditional graving docks. They play an important role in shipyards by serving as essential platforms for vessel construction, ... -
Numerical Simulation and Customized DACM Based Design Optimization
(PhD thesis UiS;, Doctoral thesis, 2018)The diverse numerical modelling, analysis and simulation tools that have been developed and introduced to markets are intended to perform the virtual design and testing of products and systems without the construction of ... -
Offshore Structures Exposed to Large Slamming Wave Loads
(PhD thesis UiS;, Doctoral thesis, 2017-12)In sloping shallow water regions, waves undergo different nonlinear transformations such as wave shoaling and breaking, due to the nonlinear wave interactions with the seabed. The forces from breaking waves are of concern ... -
On wave-wind interactions and implications for offshore wind turbines
(PhD thesis UiS;235, Doctoral thesis, 2014-11-17) -
Production Performance Analysis : Reliability, Maintainability and Operational Conditions
(PhD thesis UiS;144, Doctoral thesis, 2011-11-28)With the increasing demand for energy over recent decades, the Arctic region has become an interesting area for future exploration and development for the oil and gas industry. The Arctic region is known to have a harsh ... -
Safety and Emergency Response Associated with Cold Climate Marine Operations
(PhD thesis UiS;, Doctoral thesis, 2020)This dissertation is developed by GMC Maritime and the University of Stavanger and is part of the industrial PhD program at the Norwegian Research Council. The aim of the work is to identify the governing mechanisms ... -
Structural Integrity of Steel Bridges: Environment-Assisted Cracking
(PhD thesis UiS;, Doctoral thesis, 2020-04)Steel bridges are generally subjected to degradation due to corrosive environments. Uniform corrosion, pitting corrosion, crevice corrosion, intergranular corrosion, microbiologically influenced corrosion and environment-assisted ... -
Thermal Stratification and Turbulent Wind Loading on Floating Wind Turbines
(PhD thesis UiS;, Doctoral thesis, 2023)Offshore wind is a promising clean energy alternative to fossil fuels. The wind resource at sea is considerably stronger than on land, and the offshore wind turbines (OWTs) tend to be larger. Currently, more than 160 ... -
Wind-induced vibrations of a suspension bridge: A case study in full-scale
(PhD thesis UiS;326, Doctoral thesis, 2016-12-16)In 2013, the Norwegian government adopted an ambitious plan to cross the wide and deep-fjords of Western Norway and create a ferry-free coastal high- way route. This implies the construction of multiple long-span bridges ...