Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel
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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 ... -
Large eddy simulations of flow past an inclined circular cylinder: Insights into the three-dimensional effect
(Peer reviewed; Journal article, 2023)The flow past an inclined cylinder is simulated using large eddy simulations to study the three-dimensional wake flow effects on the forces on the cylinder at Re = 3900. Four inclination angles of α = 0°, 30°, 45°, and 60° ... -
Lateral buckling and axial walking of surface laid subsea pipeline
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013-10-07)Subsea pipelines are increasingly being required to operate at high temperature and pressure HT/HP. The pipeline installed on the seabed and left exposed have a potential to buckle, walk and change configuration under ... -
Lateral buckling induced by trawl gears pull-over loads on high temperature/high pressure subsea pipeline
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)This thesis work is performed to study and understand the pipeline global response as a result of trawl gears pull-over loads triggering lateral buckling on high temperature/high pressure subsea pipeline. The external ... -
Lateral correlation of wind speed at near-shore site; case study
(Master thesis, 2021)The main goal in this study was to study the non-neutral conditions in offshore environment and eventually study the horizontal stability in the wind patterns offshore. To assess the horizontal stability, data from the a ... -
Lateral torsional buckling capacity of corroded steel beams: A parametric study
(Peer reviewed; Journal article, 2021)Thickness reduction due to uniform corrosion increases the tendency of lateral torsional buckling (LTB) of open cross-sections and it reduces the moment capacity of the beam. The effect of the various corrosion cases on ... -
Lateral-Torsional Buckling of Steel I-Beams - An Analytical, Experimental and Numerical Study
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)This thesis compares results from experimental and numerical analyses of structural steel I-beams subjected to lateral-torsional buckling due to a vertical point load located at the mid-span. The aim is to find a suitable ... -
Lean and TPM Practices in an Industrial Context
(Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06)Today ́s globalized market place, and rapid changes in businesses environment, brings forth a need for continuous improvement. Businesses all over the world compete against each other, therefore it is essential for ... -
Life cycle cost for modification project
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Life Cycle Costing is a commonly used method for evaluating various alternatives and hence, choosing the best solution. This method is not fully utilized in the Front End Loading studies performed by one of the operating ... -
Life Cycle Costing analyser av skolebygg i Oslo kommune
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-01)Utgangspunktet for denne masteroppgaven er Oslo kommune v/ eiendomsforetaket Undervisningsbygg Oslo KF (UBF) som er underlagt Oslo kommune sin investeringsmodell (bestiller-utfører rollen). Hypotesen i denne oppgaven er ... -
Life Extension of FPSOs and the Balder Jotun Project
(Bachelor thesis, 2022)In recent years there has been a development in the offshore industry to reach deeper waters in an economical and practical way. The floating, production, storage, and offloading unit (FPSO) is one concept that can lower ... -
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. ... -
Life Extension of Offshore System: A Framework for Optimization of Maintenance Needs and Operation Requirement W.R.T End Life Management Scenario
(Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-02-01)In offshore production installations, numerous platforms, facilities, systems, and equipment’s are approaching or already exceeded their original design life. The industrial product is design for limited timespan and ... -
Life extension of ship-shaped floating production units
(Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-06)In the last two decades, the number of floating, production, storage, and offloading units (FPSOs) deployed internationally has increased rapidly. Many of them are still young but have already started ageing. The objective ... -
Life Prediction for metals under multiaxial fatigue: A Review of existing multiaxial fatigue tests.
(Master thesis, 2022)An overview of multiaxial fatigue life prediction methodologies and tests is provided in the present paper. It is essential for engineering applications to accurately estimate the fatigue failure behaviour and fatigue life ... -
Life-Cycle Assessment of Buildings at Design Stage: Case Study
(Master thesis, 2021)A life-cycle assessment of project Langhus Gård, a residential building in Nordre Follo. The focus of the LCA is to compare timber and steel studs in outer walls, as well as providing guidelines for merge between BIM (Revit) ... -
LIFECYCLE MANAGEMENT OF OFFSHORE AND ONSHORE WIND FARMS
(Master thesis, 2023)Since the demand for renewable energy sources on a global scale has increased substantially over the past few years, a great number of businesses have made investments in this industry and are doing their utmost to make ... -
Lifetime Benefit Analysis of Intelligent Maintenance: Simulation Modeling Approach and Industrial Case Study
(Peer reviewed; Journal article, 2021-04)The introduction of Industry 4.0 is expected to revolutionize current maintenance practices by reaching new levels of predictive (detection, diagnosis, and prognosis processes) and prescriptive maintenance analytics. In ... -
Lifting analysis of integrated spool cover
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Large competition in the offshore industry requires innovative solutions to satisfy the demand. A new concept of spool installations is considered where three large spools are lifted in an integrated protection structure ... -
Lifting/Installation analysis of spool - Comparison between brace and spreader solution from a structural, operational and economical point of view
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)As large sections of production pipe are lifted and installed, forces act on the structure. If initial analyses of the structural integrity show that the pipe will fail, support elements have to be introduced. The two most ...