Fakultet for ingeniørvitenskap (uspesifisert): Nye registreringer
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Operations and maintenance performance in oil and gas production assets : theoretical architecture and capital value theory in perspective
(Doktoravhandlinger ved NTNU, 1503-8181; 2003:53, Doctoral thesis, 2003)Oil & gas exploration and production by far is known to be an economically and technologically intensive business. In addition, its social and ecological sensitivity is much discussed and debated lately. The dynamic, ... -
Sloshing in rectangular tanks and interaction with ship motions
(Doktoravhandlinger ved NTNU, 1503-8181; 16, Doctoral thesis, 2002)Sloshing is a violent resonent free surface flow in a container. The main objective of this thesis has been to study sloshing in rectangular and prismatic tanks. The tank may be excited by a harmonic motion or it may move ... -
Numerical Investigation of turbulent Flow in a Channel with rough Walls
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:148, Doctoral thesis, 2004)Direct numerical simulation has been performed in order to study ressure-driven turbulent flow in a rod-roughened channel at Reynolds number Reτ = 400 (based on the mean pressure gradient). Square rods were attached to ... -
Essays on economic appraisal of transport infrastructure: Examples from aviation and fixed fjord links
(Dr. ingeniøravhandling, 0809-103X; 2001:5, Doctoral thesis, 2001)This dissertation focuses on economic appraisal of transport infrastructure investments. The main objective is to expand the knowledge about how improvements in transport infrastructure can influence economic efficiency ... -
Investigations of some material properties for structural analysis of LECA masonry
(Dr. ingeniøravhandling, 0809-103X; 2001:9, Doctoral thesis, 2001)Masonry made from Light Expanded Clay Aggregate (LECA) concrete blocks is by far the most popular manufactured masonry in Norway. LECA is a lightweight aggregate (LWA). The main objective of this study is to expand the ... -
Shock Tube Experiments on Nitromethane and Promotion of Chemical Reactions by Non-Thermal Plasma
(Dr. ingeniøravhandling, 0809-103X; 2002:67, Doctoral thesis, 2002)This dissertation was undertaken to study two different subjects both related to molecular decomposition by applying a shock tube and non-thermal plasma to decompose selected hydrocarbons. The first approach to molecular ... -
Fatigue Strength of Titanium Risers - Defect Sensitivity
(Dr.ingeniøravhandling, 0809-103X; 2001:73, Doctoral thesis, 2001)This study is centered on assessment of the fatigue strength of titanium fusion welds for deep-water riser’s applications. Deep-water risers are subjected to significant fatigue loading. Relevant fatigue data for titanium ... -
Deformations in Concrete Cantilever Bridges: Observations and Theoretical Modelling
(Dr. ingeniøravhandling, 0809-103X; 2002:23, Doctoral thesis, 2002)The thesis deals with the deformation problem of segmental, cast-in-place concrete cantilever bridges. This type of bridge has shown some propensity to develop larger deflections than those were predicted in the design ... -
Kollektivtransportmodellering: Kan eksisterende transportmodeller utvikles slik at de blir mer egnet til analyser av kollektivtransport?
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:224, Doctoral thesis, 2005)Kan eksisterende transportmodeller utvikles slik at de blir mer egnet til analyser av kollektivtransporten? Ja, det kan de, viser arbeidet i denne avhandlingen. En rekke egenskaper ved dagens modeller er studert, primært ... -
Computer Simulation of Residual Stress and Distortion of Thick Plates in Multielectrode Submerged Arc Welding: Their Mitigation Techniques
(Dr. ingeniøravhandling, 0809-103X; 2001:75, Doctoral thesis, 2001)Welding is the main joining method used in shipbuilding. A multi-electrode submerged arc welding is usually applied to long joints of massive components since the early 1950s. The problem of welding stresses and deformations ... -
Linking advanced fracture models to structural analysis
(Dr. ingeniøravhandling, 0809-103X; 2001:78, Doctoral thesis, 2001)In this study a link between local material models and structural analysis is outlined. An ”ad hoc” element formulation is used in order to connect complex material models to the finite element framework used for structural ... -
Fatigue Life Prediction of an Aluminium Alloy Automotive Component Using Finite Element Analysis of Surface Topography
(Doctoral Theses at NTNU, 1503-8181; 2006:25, Doctoral thesis, 2006)A 6082 aluminium alloy has been characterized with regard to the influence of surface roughness on fatigue strength. Fatigue life testing of smooth specimens was used to establish reference curves for the material in ... -
Theoretical and experimental studies on combustion of alternative fuels in cement kilns
(Doktoravhandlinger ved NTNU, 1503-8181; 85, Doctoral thesis, 2002)In this thesis, the utilization of alternative fuels for NOx reduction by means of reburning and advanced reburning is sonsidered. Laboratory experiments, full-scale experiments and computational fluid dynamic (CFD) ... -
Enterprise Reengineering – A Strategic Framework and Methodology
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:153, Doctoral thesis, 2005)Manufacturing companies find themselves, whether they like it or not, in a more global and changing reality. Fiercer competition, dynamic markets, new consumer habits, stronger environmental regulations, and new technological ... -
Nonlinear Shell Finite Elements for Ultimate Strength and Collapse Analysis of Ship Structures
(Dr. ingeniøravhandling, 0809-103X; 2001:84, Doctoral thesis, 2001)The present thesis deals with ultimate strength and collapse analysis of ship structures. Within this are, the attention is directed towards simple and efficient nonlinear finite element models for stiffened plate panels ... -
Effects of anthropogenic activities on snow distribution, and melt in an urban environment
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:67, Doctoral thesis, 2004)In many parts of the world snow melt runoff influence discharge from combined sewer overflows (CSO) and flooding in urban drainage systems. Despite this, urban snow hydrology is a field that has received little attention ... -
Ultimate capacity of aluminium plates under multiple loads, considering HAZ properties
(Dr.ingeniøravhandling, 0809-103X; 2001:56, Doctoral thesis, 2001)The purpose of this work has been to investigate the ultimate capacities of aluminium plates. The aluminium plates are supposed to be part of a marine structure. Their behaviour has been explored by taking advantage of ... -
Aspects of ship design: optimization of aft hull with inverse geometry design
(Dr. ingeniøravhandling, 0809-103X; 2003:107, Doctoral thesis, 2003)The main contribution of this thesis is on the study of optimization methods in aft hull design. The optimization methods are inverse geometry design methods to find an aft hull with the flow velocities we specify. The ... -
Hybrid Intelligent Systems in Manufacturing Optimization
(Dr.ingeniøravhandling, 0809-103X; 2002:31, Doctoral thesis, 2002)The main objective of the work reported in this thesis has been to study and develop methodologies that can improve the communication gap between design and manufacturing systems. The emphasis has been on searching for the ... -
Valg av kontraktsstrategi i bygg- og anleggsprosjekt
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:140, Doctoral thesis, 2006)Both national and international literature indicate that effiency and productivity in building and construction projects can be optimized. The literature also indicate that the reasons for selections in the front-end of ...