Blar i Vitenskapelige publikasjoner (TN-IMBM) på utgivelsesdato
Viser treff 61-80 av 442
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An efficient approach for ship collision design of reinforced concrete pontoon walls
(Journal article; Peer reviewed, 2019)This paper presents an efficient method for collision design of prestressed concrete pontoon walls. High fidelity finite element models of a container ship bow and a prestressed concrete pontoon wall are first established. ... -
CFD simulations of a suspension bridge deck for different deck shapes with railings and vortex mitigating devices
(Peer reviewed; Journal article, 2019)Aerodynamic response of a single-box suspension bridge girder is investigated using CFD simulations. The importance of including railings and vortex mitigating devices such as guide vanes and a spoiler in the simulations ... -
The performance of structured and unstructured grids on wind simulations around a high-rise building
(Journal article; Peer reviewed, 2019)In this study, computational fluid dynamics has been applied to analyze the performance of both structured and unstructured meshes when used in steady-state simulations of wind in an urban area. This case specifically ... -
Choice of fuel system for the offshore support fleet
(Journal article; Peer reviewed, 2019)The stringent requirements of the IMO's emission regulations call for alternative fuels and new ways of powering ships. However, the IMO predicts that technology which could reduce ship emission to zero, will either not ... -
Integration of value adding services related to financing and ownership: A business model perspective
(Peer reviewed; Journal article, 2019)It is an agreed fact among scholars that services are more sustainable compared to the products. By offering services, traditional companies can lock their customers into a long-term and sustainable revenue generation ... -
On-Bottom Stability of Umbilicals and Power Cables for Offshore Wind Applications
(Peer reviewed; Journal article, 2019)With the increase in offshore wind farms, the demands for umbilicals and power cables have increased. The on-bottom stability of umbilicals and power cables under the combined wave and current loading is the most challenging ... -
Testing of a new transport and installation method for offshore wind turbines
(Peer reviewed; Journal article, 2019)Transport and installation of offshore wind turbines require considerable efforts and can be time consuming, in particular when jackups are used for lifting operations. This is mainly due to the specific weather window ... -
Management of challenges during the construction of offshore facilities
(Peer reviewed; Journal article, 2019)The construction of offshore facilities for development of oil and gas deposits is preceded by careful Conceptual Studies, Front-End Engineering Design Studies (FEED studies) and a Detailed Engineering phase including ... -
Rationale for Development of Design Basis for Barents Sea field developments
(Peer reviewed; Journal article, 2019)Developments of hydrocarbon fields in the Barents Sea would normally include surface process units; thus, we must take into account the ice conditions in the area. Alternatively, smaller fields can be developed as satellites ... -
The influence of the composition of water on the results of accelerated aging resistance testing of low voltage subsea cables insulation
(Peer reviewed; Journal article, 2019)The composition of water changes with temperature, for instance, the saturation rate of water in polyurethane membranes is related to the temperature. Thus, it is necessary to evaluate the influence of the composition of ... -
Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept
(Peer reviewed; Journal article, 2019)Currently, the development of floating wind turbines and wave energy converters (WECs) is both facing the challenge of high cost-of-energy (CoE). A promising way to reduce the CoE is to employ combined wind and wave energy ... -
Winterization and drilling operations in cold climate areas
(Peer reviewed; Journal article, 2019)Petroleum operations in remote locations offshore off northern Norway call for technical and operational solutions, sustainable and capable of withstanding extreme and harsh weather conditions. This paper discusses hazards, ... -
Development of a method for evaluation of measures used for winterization of offshore facilities and units
(Peer reviewed; Journal article, 2019)The environmental conditions in the Barents Sea include low temperatures, wind, snow and precipitation influencing safety, working environment, operations and equipment functionality. The conditions are not extreme compared ... -
Concerns to Be Considered During Recycling Operations
(Peer reviewed; Journal article, 2019)Recycling should in principle be the goal in all aspects of society. There are, however, limitations, as any recycling task may lead to pollution in the ground, water or air. In the most extreme case, recycling may lead ... -
State-of-the-art of crack propagation modelling in tubular joints
(Peer reviewed; Journal article, 2019)Offshore structures are conventionally designed for a service life between 20-30 years and mostly used beyond their service life. They are operated up to the point where costs of operations, maintenance and repair exceed ... -
Evaluation of ballast failures during operations of semi-submersible rigs
(Peer reviewed; Journal article, 2019)Risk analysis/assessment is one of the challenges encountered during operations of offshore units on the Norwegian Continental Shelf (NCS). In recent years, the Petroleum Safety Authority (PSA) has focused on hazards ... -
A Relationship Between Breaking Wave Characteristics and Slamming Forces Acting on Jacket Structures
(Peer reviewed; Journal article, 2019)The goal of this study was to investigate and describe the relationship between breaking wave characteristics and total slamming forces acting on a jacket structure in shallow water, based on the experimental data collected ... -
Trends in seismic data acquisition in areas with surface ice
(Peer reviewed; Journal article, 2019)The Arctic has great significance in relation to the exploration and exploitation of its huge petroleum resources. Seismic surveys are the key part of petroleum exploration. Reflected sound waves are used to produce a 3D ... -
CFD Simulations of the Propagation of Free-Surface Waves Past Two Side-By-Side Fixed Squares with a Narrow Gap
(Peer reviewed; Journal article, 2019)Two-dimensional computational fluid dynamics (CFD) simulations are carried out to investigate the gap resonance phenomenon that occurs when free-surface waves travel past twin squares in tandem. The volume of fluid method ... -
Strength analysis of 3D printed carbon fibre reinforced thermoplastic using experimental and numerical methods
(Peer reviewed; Journal article, 2019)A study of strength of composite materials produced by 3D printing technology is presented. The samples fabrication and tests to determine the strength both in bending and in tension of the composite materials have been ...