Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel
Viser treff 486-505 av 1689
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Distinguishing space groups by electron channelling: centrosymmetric full-Heusler or non-centrosymmetric half-Heusler?
(Peer reviewed; Journal article, 2020)X-ray emission under electron-channelling conditions is used to distinguish between a non-centrosymmetric half-Heusler and a centrosymmetric full-Heusler crystal. For TiCo1.5+xSn the space-group determination based on a ... -
Downhole cutting tool design concept for use with the AWS “Driller”
(Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)Production tubing cutting operations is getting more and more common in the North Sea; this is a product of an increasing number of Plug and Abandonment operations and re-completions of old wells. The most common method ... -
DP systems for offshore vessel positioning in deep water
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013-10-01)Current industry practices and the suggestions from the literature are that offshore oil exploration and production activities will move into deeper water further from shore. To achieve that, dynamic positioning systems ... -
Drilling rig maintenance: an analytical study of the classification, treatment, data quality of equipment failures and related downtime
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)The aim of this thesis is to improve the way failures caused by insufficient maintenance are being managed and reported on drilling rigs and thereby reducing the overall downtime and related cost for the rigs. By looking ... -
Drilling spare parts: Identifying and evaluating critical parameters
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)Spare parts for drill rigs are a complicated and important task to be handled. The operations are run on tight schedules and costs are based on the number of days to complete the operations. There are strict regulations ... -
Dropped object impact analysis on subsea pipelines
(Master thesis, 2023)This thesis studies the response of a subsea pipeline's structure when a dropped object hits it. The pipeline and seabed were modelled using solid elements, while the container model was imported from Aker Solutions and ... -
Dropped object protection analyses
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-13)Impact from dropped object is a typical accident action (NOKSOK N-004, 2013). Hence, the DOP structure is to be analyzed in an accidental limit state (ALS) design practice, which means that a non-linear finite element ... -
Dual lidar wind measurements along an upstream horizontal line perpendicular to a suspension bridge
(Peer reviewed; Journal article, 2021)Remote wind sensing can complement traditional anemometry at a bridge site and contribute to an improved wind-resistant design of long-span bridges. This study examines wind lidar measurement data recorded along a ... -
Ductility in lightweight concrete with fiber
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)This master thesis presents the influence of different fiber in high-performance lightweight concrete and the ductility capacity of reinforced lightweight concrete beam. Twelve beams with length of 2.2m and reinforcement ... -
Duktilitet i fiberarmert høyfast normalbetong
(Master thesis, 2014-06-16)Denne oppgaven tar for seg duktilitet i fiberarmert høyfast normalbetong. Historie, egenskaper og de forskjellige bestanddelene blir beskrevet. Det blir i tillegg foretatt en strukturell analyse med fokus på bøyemoment, ... -
Duktilitet i fiberarmert lettbetong
(Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)Denne oppgaven omhandler fiberarmert lettbetong. Den beskriver lettbetongens oppbygging, hvordan fiber påvirker lettbetongens egenskaper og hva som skjer med fiberne etter opprissing under belastning. Den tar også for seg ... -
Duktilitet i lettbetong ved bruk av fiber
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-13)Denne oppgaven tar for seg duktilitet i fiberarmert lettbetong, samt en beskrivelse av lettbetongens oppbygning. Betongens duktilitet ved tilsetting av fiber er sentralt i oppgaven, og det er også gjennomført strukturelle ... -
Duktilitetsegenskaper i selvkomprimerende lettbetong
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)Stalite er et lett tilslag som kommer fra USA, og som brukes til å lage lettbetong. Lettbetong er ifølge er ifølge NS – EN 1992, 11.1 betong som har lett tilslag og tørrvekt under 2200kg/m3. I denne masteroppgaven vil det ... -
Duplex steel welding in arctic conditions – Correlation of welding parameters in relation to HISC
(Master thesis, 2021)The second part of XX century has taken a large part of Oil & Gas production to the offshore. The processes and equipment used inland, had to be adapted and optimized for severe marine and subsea conditions. In order to ... -
Duplex steel welding in artic conditions – Correlation of welding parameters in relation to HISC
(Peer reviewed; Journal article, 2021)Duplex steel is an austenitic-femtic steel alloy commonly used in the offshore and subsea oil and gas industry. Duplex steel provides a unique combination of good mechanical properties and corrosion resistance in sweet and ... -
Dynamic Analysis and Extreme Response Evaluation of Lifting Operation of the Offshore Wind Turbine Jacket Foundation Using a Floating Crane Vessel
(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 and Finite Element Modeling of a Floating Bridge
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-14)With the aim of reducing the travel time of the coastal highway E39 by substituting ferries with bridges and tunnels, the National Public Road Administration project “Ferry Free E39” includes several fjord crossings demanding ... -
Dynamic analysis and validation of a multi-body floating wind turbine using the moving frame method
(Peer reviewed; Journal article, 2023)This research applies the moving frame method (MFM) to the multi-body dynamic analysis of an OC3 phase IV spar buoy with the NREL 5MW turbine. Further, it verifies previous results obtained through numerical comparisons ... -
Dynamic analysis for the installation of offshore wind turbine foundations
(Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)This report looks into the possibility for using modified phased out shuttle tankers to install jacket foundations for offshore wind turbines. New massive wind mill farms are now being planned out in water depths of 40 ... -
Dynamic Analysis of a Floating Fish Cage with Feeding Systems
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Aquaculture is one of the fastest growing industries in Norway, and one of the fastest growing food production industries in the world. Limited access to available locations along the coast is gradually forcing aquacultural ...