Blar i Vitenskapelige publikasjoner (TN-IMBM) på utgivelsesdato
Viser treff 41-60 av 438
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Large Eddy simulations of flow around tandem circular cylinders in the vicinity of a plane wall
(Peer reviewed; Journal article, 2018)In order to investigate the three-dimensional flow around free-spanning, tandem marine pipelines, Large Eddy Simulations (LES) with Smagorinsky subgrid scale model are performed using the open-source code OpenFOAM. Two ... -
Numerical analysis of a vessel-shaped offshore fish farm
(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 ... -
Investigating Effects of Fused-Deposition Modeling (FDM) Processing Parameters on Flexural Properties of ULTEM 9085 using Designed Experiment
(Journal article; Peer reviewed, 2018-03)Fused-deposition modeling (FDM), one of the additive manufacturing (AM) technologies, is an advanced digital manufacturing technique that produces parts by heating, extruding and depositing filaments of thermoplastic ... -
Joint description of waves and currents applied in a simplified load case
(Peer reviewed; Journal article, 2018-03)In order to perform a more accurate analysis of marine structures, joint probability distributions of different metocean parameters have received an increasing interest during the last decade, facilitated by improved ... -
Influence of linear springing on the fatigue damage of ultra large ore carriers
(Journal article; Peer reviewed, 2018-05)Springing occurs more frequently to ultra large ships, as their natural frequencies are relatively low and approaches the spectral peak of the wave energy spectrum in certain sea states. Springing is a resonance phenomenon ... -
Dynamic response analysis of a catamaran installation vessel during the positioning of a wind turbine assembly onto a spar foundation
(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 ... -
Simulated wind-generated inertial oscillations compared to current measurements in the northern North Sea
(Journal article, 2018-06)Measured current speed data show that episodes of wind-generated inertial oscillations dominate the current conditions in parts of the northern North Sea. In order to acquire current data of sufficient duration for robust ... -
Thermoelectric effect in superlattices; applicability of coherent and incoherent transport models
(Journal article; Peer reviewed, 2018-06)Calculations of thermoelectric transport coefficients including quantum effects are performed on superlattices using the Buttiker approximation. The results arecomparedto the Boltzmann transport equation withminibands present, ... -
Coastal Erosion Due to Decreased Ice Coverage, Associated Increased Wave Action, and Permafrost Melting
(Chapter, 2018-11)It is broadly recognized that the Arctic area has become highly popular for hosting new activities and new infrastructure. This is due to the combination of the need of exploring new areas to satisfy the ever increased ... -
Servitization: A Model for the Transformation of Products into Services through a Utility-Driven Approach
(Journal article; Peer reviewed, 2018-12)The economies of the industrialized world have become dominated by services. Many manufacturing companies have changed from producing products to providing services. However, many companies still lag behind in this ... -
Determination of atomic positions and polar direction in half-Heusler material Sb1- xSnxTi1-y-zHfyZrzCo using electron channeling
(Journal article; Peer reviewed, 2018-12)Variation of electron-induced x-ray emission with the crystal direction of an incoming electron beam (channeling) is used to study the crystal site preference of different elements in a promising thermoelectric half-Heusler ... -
Offshore Wind Turbine Loads and Motions in Unstable Atmospheric Conditions
(Peer reviewed; Journal article, 2019)Even though it is widely known that unstable atmospheric stability conditions can lead to higher turbulence, the use of proper turbulent wind models considering unstable conditions are not often used in the simulation of ... -
Investigation of updating methods for probability-informed inspection planning for offshore structures
(Peer reviewed; Journal article, 2019)The paper presents a novel process for probability-informed inspection planning based on the following principles. 1) A description of the strength of knowledge about a problem shall be included and be accounted for in the ... -
Design, simulation and production of hydraulic briquette press for metal chips
(Peer reviewed; Journal article, 2019)Removal of metal chips are involved in several industrial production processes that machine from casted parts by various operations such as turning, milling and drilling. In addition to the fact that the chips represent a ... -
Scalability and compatibility analyses of airborne wind technology for maritime transport
(Peer reviewed; Journal article, 2019)Wind energy is a source freely available in the oceans. New developments in the wind industry are towards high altitude wind turbines, known as Airborne Wind Energy Systems. The airborne wind technology is rapidly developing ... -
Use of simulator training to mitigate risks in arctic shipping operations
(Peer reviewed; Journal article, 2019)Over the recent years, ship traffic in the polar areas has increased. There is reason to believe that this traffic, and especially the cruise traffic, will increase further as the ice retracts towards the poles. There is ... -
Survival in cold waters - learnings from participation in cold water exercises - a regulatory perspective related to the Norwegian offshore industry
(Peer reviewed; Journal article, 2019)Participation in exercises lead by the University of Stavanger, the SARex 1 in 2016 and SARex 2 in 2017, provided valuable lessons related to survival in a cold maritime environment. The scenario of the exercises was a ... -
Improvements for the workflow interoperability between BIM and FEM tools
(Peer reviewed; Journal article, 2019)Transferring models, developed using Building Information Modelling (BIM), to Finite Element Method (FEM) tools is an important task in the integration of structural engineering into the open BIM workflow. Such integration ... -
Predictive maintenance (PdM) analysis matrix: A tool to determine technical specifications for PdM ready-equipment
(Peer reviewed; Journal article, 2019)Predictive maintenance (PdM) and operations optimisation are expected to generate the highest industrial and societal impact within the oil and gas industry. Such an optimistic expectation requires several changes in asset ... -
Modelling of hydrocarbon gas and liquid leaks from pressurized process systems
(Peer reviewed; Journal article, 2019)The hydrocarbon leaks from process systems potentially lead to hazardous consequences with regard to human safety, environmental pollution and valuable assets. The hydrocarbon leaks may be gas leaks, liquid leaks or ...