Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 8528-8547 of 23013
-
An External Shock -- Internal Barrier Degradation Model to Account for Operational Loads
(Chapter, 2020)Modelling the reliability of safety instrumented systems requires a proper understanding of the failure model and how operational loads influence the degradation. Many authors propose models where a proof test will affect ... -
Extra Strain Rates in an unsteady spilling breaking wave
(Journal article; Peer reviewed, 2018)We analyze the extra strain rates that characterize a curved, thin mixing layer induced at an unsteady spilling breaker. We focus on the flow curvature, which induces some extra rates of strain that should be accounted for ... -
Extracting shape features from a surface mesh using geometric reasoning
(Peer reviewed; Journal article, 2020)Mesh data is extensively used in CAD/CAM applications to approximate three-dimensional (3D) solid models. The STL file format is one of the key file formats for 3D data transfer in modern manufacturing systems. STL files, ... -
Extraction of mix-mode cohesive laws of a unidirectional composite undergoing delamination with large-scale fibre bridging
(Peer reviewed; Journal article, 2022)A novel method is proposed for extracting the mixed-mode cohesive laws of composite materials undergoing delamination with large-scale fibre bridging. In the approach, the mixed-mode cohesive laws are derived from a potential ... -
Extraordinary Deformation Capacity of Smallest Carbohelicene Springs
(Journal article; Peer reviewed, 2015)The extraordinary deformation and loading capacity of nine different [∞]carbohelicene springs under uniaxial tension up to their fracture were computed using the density functional theory. The simulations comprised either ... -
Extraordinary Response of H-Charged and H-Free Coherent Grain Boundaries in Nickel to Multiaxial Loading
(Peer reviewed; Journal article, 2020)The cohesive strength of 3, 5, and 11 grain boundaries (GBs) in clean and hydrogen-segregated fcc nickel was systematically studied as a function of the superimposed transverse biaxial stresses using ab initio methods. The ... -
Extreme keel drafts in the Fram Strait 2006-2011
(Chapter; Peer reviewed, 2013)Knowledge about extreme keel drafts is needed for appropriate design of offshore installations in ice ridge infested waters. Ice drafts were measured with upward looking sonar by the Norwegian Polar Institute in the western ... -
Extreme Multiple Landslide Events in Norway: An Investigation of Rainfall and Snowmelt Induced Soil Landslide Detection and Forecasting
(Master thesis, 2020)Extreme events with multiple landslides can cause major economic costs, damage, and loss of life. While a single landslide can be destructive, multiple landslides are often the culprit of major losses. They can isolate ... -
Extreme response estimation of offshore wind turbines with an extended contour-line method
(Journal article; Peer reviewed, 2018)The contour-line method is a simplified approach for finding the long-term extreme values by a small number of short-term analyses. It is assumed the response with a return period of T years occurs during a sea-state with ... -
Extreme response estimation of umbilical on very deep water
(Master thesis, 2010)The scope of study is an umbilical arranged in a lazy wave con guration at 1300 m depth in Brazilian waters. The surface vessel is a ship, about 300 m long and 55 m wide. The wave environment is given by a wave scatter ... -
Extreme responses and associated uncertainties for a long end-anchored floating bridge
(Peer reviewed; Journal article, 2020)Very-long floating bridges represent an innovative marine structure for crossing wide and deep fjords. During the design of a floating bridge, extreme structural responses at a specified probability of exceedance are ... -
Extreme temperature and precipitation response to solar dimming and stratospheric aerosol geoengineering
(Journal article; Peer reviewed, 2018)We examine extreme temperature and precipitation under two potential geoengineering methods forming part of the Geoengineering Model Intercomparison Project (GeoMIP). The solar dimming experiment G1 is designed to completely ... -
Extreme Value Analysis of Riser Systems for large Water Depths
(Master thesis, 2014)In relevant Norwegian regulations, the characteristic response is defined as a given annual probability of exceedance. Effective and accurate methods of estimating the response for the required annual probability levels ... -
Extreme Value Estimation of Beaufort Sea Ice Dynamics Driven by Global Wind Effects
(Journal article; Peer reviewed, 2022) -
Extreme Value Estimation of Mooring Loads Based on Station-Keeping Trials in Ice
(OMAE2020-18172, Chapter; Peer reviewed, 2020)he purpose of this work is to perform an extreme value estimation of the mooring loads associated with station-keeping of a ship operating in ice. In general, the design of mooring lines is based on estimation of the extreme ... -
Extreme Wave Generation, Breaking and Impact Simulations With REEF3D
(Chapter, 2017)An accurate description of extreme waves is necessary in order to estimate maximum wave forces on offshore structures. On several occasions freak waves have been observed in the past, some causing severe damage. In order ... -
Extreme Wave Generation, Breaking, and Impact Simulations Using Wave Packets in REEF3D
(Journal article; Peer reviewed, 2019)On several occasions, freak waves have been observed in the past, some causing severe damage. In order to model such extreme wave conditions, one possibility is to use focused waves of first- or second-order based on ... -
Extrinsic calibration for motion estimation using unit quaternions and particle filtering
(Peer reviewed; Journal article, 2020)This paper presents a method for calibration of the extrinsic parameters of a sensor system that combines a camera with an inertial measurement unit (IMU) to estimate the pendulum motion of a crane payload. The camera ... -
Extrusion of Cellulose Fibers Polypropylene Composites
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:213, Doctoral thesis, 2008)This study focused on the possibility of industrial extrusion of cellulose fibers polypropylene composites. The challenges were to introduce cellulose fibers into the extruder, to obtain a good dispersion of the fibers ...