Blar i Fakultet for ingeniørvitenskap (IV) på dokumenttype "Chapter"
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A dynamic stress state analysis at the pressure tunnel of Upper Tamakoshi HPP, Nepal
(Chapter, 2018)In theory, in-situ stress state of an area of concern is mainly governed by gravity-induced stress, tectonic ac-tivity and topographic condition of that area. The tectonic and geological environment such as faulting and ... -
A framework for estimating the implicit safety level of existing design codes
(Chapter, 2017)Target safety levels ( t ) are key elements for reliability-based design and calibration of design codes. They are derived by monetary optimization or from existing codes. The current article discusses these two approaches ... -
A Global-local Damage Assessment Methodology for Impact Damage on Offshore Wind Turbine Blades during Lifting Operations
(Chapter, 2018)Lifting the latest generation offshore wind turbines using floating crane vessels is extremely challenging. This comes with an elevated risk of blades impacting the tower or surrounding structures due to excessive crane ... -
A harmonic polynomial method based on Cartesian grids with local refinement for complex wave-body interactions
(Chapter, 2018)A novel numerical method is proposed for complex potential free-surface flows of incompressible liquids with and without bodies. The present method combines high-order harmonic polynomials with Cartesian grids with local ... -
A Heuristic Approach for Early-Stage Product Development in Extreme Environments
(Chapter, 2017)This article considers a heuristic approach for developing products for extreme environments. The authors propose a set of heuristics for exploring environment and product features throughout the design probing process. ... -
A method of road network vulnerability identification taking into account travelers' heterogeneous risk attitudes
(Chapter, 2018)The analysis of road network vulnerability is a challenging and important research subject in the field of transportation reliability engineering because of the complex coupling relationships among travelers, vehicles, ... -
A modelling methodology for the assessment of preventive maintenance on a compressor drive system
(Chapter, 2018)Huge rotary machines are commonly used in oil and gas processing plants for separation, compression and boosting. Their reliability is of high importance to avoid operation downtime and production loss. In this paper, we ... -
A multi-body dynamic model based on bond graph for maritime hydraulic crane operations
(Chapter; Peer reviewed, 2015)This paper presents a bond graph model of a maritime crane lifting system comprised of a 3DOFs crane with three revolute joints, a winch, a segment of wire, and a pendulum load. The multi-body model contains the dynamic ... -
A new approach to dynamic barite sag analysis on typical Field oil-based drilling fluid
(Chapter, 2019)Laboratory and field experiences record that sagging of weighting agents such as barite in drilling fluids is often worse in dynamic conditions, e.g. pumping, tripping or drill pipe rotation, than in static conditions. ... -
A new design concept of Blowout Preventer for decision support
(Chapter, 2017)The Blowout Preventer (BOP) system is used for controlling blowout risks in drilling operations. The system is implemented to shut down an oil and gas well when the well fluids have entered the wellbore. All BOP systems ... -
A Novel Low Cost ROV for Aquaculture Application
(Chapter, 2017)Marine aquaculture is deeply rooted in Norwegian national economics and traditions, especially in the MØre og Romsdal region. This paper presents the development of a novel ROV for aquaculture inspection in marine application ... -
A numerical investigation of erosion around offshore pipelines
(Chapter, 2017)In this paper, a numerical investigation is carried out to model sea bed erosion around offshore pipelines deployed at the shoreline. The open-source CFD model REEF3D is used for the numerical modeling. The model solves ... -
A Numerical Study on a Flopper Stopper for Leg Positioning of a Jack-Up Barge
(Chapter; Peer reviewed, 2017)Jack-up barges are commonly used for marine operations in the offshore oil and gas, and offshore wind industries. A critical phase within the marine operation activities is the positioning of the jack-up legs onto the ... -
A Numerical Study on Stratified Shear Layers With Relevance to Oil-Boom Failure
(Chapter, 2014)Interface dynamics of two-phase flow, with relevance for leakage of oil retained by mechanical oil barriers, is studied by means of a 2D lattice-Boltzmann method combined with a phase-field model for interface capturing. ... -
A particle filter SLAM approach to online iceberg drift estimation from an AUV
(Chapter; Peer reviewed, 2017)Using autonomous underwater vehicles (AUVs) for mapping the underwater topography of sea-ice and icebergs, or detecting keels of ice ridges, is foreseen as an enabling technology in future Arctic offshore operations. This ... -
A Perspective on the Past, Present and Future of Computer-Aided Ship Design
(Chapter, 2019)The work here presented is an attempted answer to an invitation by the same title by V. Bertram to the author, with the objective of propose future paths for computer-aided Ship Design tools, based on observation of past ... -
A Prime on Web-Based Simulation
(Chapter, 2019)A web-based approach gives advantages regarding sharing, compatibility, open source development and interactivity of engineering simulations. This work introduces the approach with a simple damped harmonic oscillator, ... -
A procedure for the assessment of the undrained shear strength profile of soft clays
(Chapter, 2016)In the geotechnical research community, there is widespread agreement that the choice of the characteristic undrained shear strength (cuA) is very important and plays an essential role in the design and stability analysis ... -
A Review of Research Pathways and Opportunities for Building Integrated Photovoltaics from a Materials Science Perspective
(Chapter, 2016)Research within materials science photovoltaics (PV) technologies may enable and accelerate the development of highly innovative and efficient building integrated photovoltaics (BIPV) materials and systems. Sandwich, ...