Browsing Fakultet for ingeniørvitenskap (IV) by Document Types "Chapter"
Now showing items 1-20 of 1334
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2D Numerical Study on Wake Scenarios for a Flapping Foil
(Chapter, 2021)Fishes are talented swimmers. Depending on the propulsion mechanisms many fishes can use flapping tails and/or fins to generate thrust, which seems to be connected to the formation of a reverse von Kármán wake. In the ... -
3D FE tool for time dependent settlement predictions
(Chapter, 2016)A newly developed calculation tool for fully coupled general 3D finite element consolidation analyses is presented. The development has been part of an ongoing Research and Development project called GeoFuture and the tool ... -
3D Numerical modelling of pile scour with free surface profile under waves and current using the level set method in model REEF3D
(Chapter, 2016)Wave action stirs up sediments and keeps it in suspension while currents wash it away from the coastal zone. The combined action of the waves and current close to the sediment bed may worsen the situation by creating ... -
3D-Printing Technology in Construction: Results from a Survey
(Chapter, 2019)Purpose – The purpose of this paper is to study the introduction of 3D-printing of concrete in the construction sector. Design/Methodology/Approach – A survey was conducted to collect professional view on ongoing innovations ... -
A 2D Experimental and Numerical Study of Moonpools With Recess
(Chapter, 2018)Moonpool resonance is investigated in a two-dimensional setting in terms of regular, forced heave motions of a model with moonpool with different rectangular-shaped recess configurations. A recess is a reduced draft zone ... -
A bézier curve based ship trajectory optimization for close-range maritime operations
(Chapter, 2017)Ship maneuvering in close-range maritime operations is challenging for pilots, since they have to not only prevent the ship from collisions and compensate environmental impacts, but also steer it close to the target towards ... -
A cartesian cut-cell method, based on formal volume averaging of mass, momentum equations
(Chapter, 2017)Simulation of multiphase flows are generally treated by various classes of Eulerian methods, Lagrangian methods and various combinations of these. In the SIMCOFLOW initiative we have set out to develop a framework for ... -
A case of dynamic risk management in the subarctic region
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A CFD analysis for the performance assessment of a novel design of plates-in-tank latent storage unit for freezing applications
(Chapter, 2019)In this paper, the charging and discharging processes of a recently developed cold thermal energy storage (CTES) unit integrated into a poultry processing plant is investigated. A mathematical model of the CTES was created ... -
A Combined Photoplethysmography and Force Sensor Prototype for Improved Pulse Waveform Analysis
(Chapter, 2019)Pulse detection has in recent years received extensive attention in physiological health monitoring, and continuous blood pressure estimation models based on pulse waveform analysis have shown great promises. Two widely ... -
A comparative fatigue reliability study for key structural components of offshore wind turbines
(Chapter, 2018)In this paper, the fatigue reliability of blade root and tower base of a jacket wind turbine, the OC4 semi-submersible wind turbine and a land-based wind turbine is investigated and compared. The fatigue reliability of ... -
A comparative study of beam element formulations for nonlinear analysis: corotatinal vs. geometrically exact formulations
(Chapter, 2017)In this work the geometrically exact three-dimensional beam theory has been used as basis for development of a family of isoparametric higher order large deformation curved beam elements. Geometrically exact three-dimensional ... -
A Comparison of Competitive Dialogue and Best Value Procurement
(Chapter, 2018)Competitive Dialogue (CD) and Best Value Procurement (BVP) are two different approaches to early contractor involvement (ECI) in public projects. However, it is not clear which approach is best suited for what kind of ... -
A comparison of wave generation methods simulating extreme waves in a numerical wave tank
(Chapter, 2017)Extreme wave conditions emanate from the random and instantaneous interaction of waves during storm events. These wave conditions may cause potentially severe damage to ships and offshore oil and gas structures. There are ... -
A Comparison Study on the Hydroelasticity of Two Types of Floating Bridges in Inhomogeneous Wave Conditions
(Chapter, 2018)Due to the interaction between elastic structural deformations and fluid motions, the responses of floating bridges should be analyzed by hydroelasticity methods. We firstly employed a linear time-domain approach, based ... -
A decentralized sensor fusion approach to human fatigue monitoring in maritime operations
(Chapter, 2019)Human fatigue is one of the main causes of accidents in maritime domain. How to use physiological data to estimate degree of human fatigue without medical domain knowledge is significant to the safety of tasks in maritime ... -
A Degrading Element of Safety-instrumented Systems with Combined Maintenance Strategy
(Chapter, 2019)Safety-instrumented systems (SISs) are widely used to prevent hazardous events. The mechanical actuator subsystem in a SIS can become more vulnerable with time due to progressive degradation mechanisms, such as erosion, ... -
A design methodology for resilience in fleets for service operations
(Chapter, 2016)In this paper, we present a new conceptual design methodology for increasing the resilience in complex operations involving a fleet of ships. The objective of the methodology is to support design decisions to reduce ... -
A discussion of risk influencing factors for maritime accidents based on investigation reports
(Chapter, 2017)This paper reports findings from a review of investigation reports from maritime accidents. Based on a systematic analysis of 95 reports, we discuss a selection of typical causes and circumstances for serious maritime ...