Browsing Institutt for maskinteknikk og produksjon by Title
Now showing items 1097-1116 of 3992
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Digitalization of the value chain - improving value chain performance with prediction
(Doctoral theses at NTNU;2023:115, Doctoral thesis, 2023)Industrien har høye forventninger knyttet til muligheter introdusert ved økt bruk av digital data og digital teknologi, ofte omtalt som digitalisering. Mange har fremhevet digitalisering som et nøkkelelement for å lykkes ... -
Digitalized manufacturing logistics in engineer-to-order operations
(Chapter, 2019)The high complexity in Engineer-To-Order (ETO) operations causes major challenges for manufacturing logistics, especially in complex ETO, i.e. one-of-a-kind production. Increased digitalization of manufacturing logistics ... -
Digitalizing Advanced Manufacturing and Maritime Industry: Perspectives on how organizations acquire and commercialize technology through inter-organizational collaboration
(Doctoral theses at NTNU;2019:174, Doctoral thesis, 2019) -
Digitalizing the maritime industry: A case study of technology acquisition and enabling advanced manufacturing technology
(Peer reviewed; Journal article, 2019)The need to reduce time-to-market and reduce cost-of-non-quality drives organizations operating within the advanced manufacturing industry to explore, and source technology externally. This paper reports on a case study ... -
Dimensional accuracy of aluminium extrusions in mechanical calibration
(Journal article; Peer reviewed, 2018)Reducing dimensional variations in the extrusion process without increasing cost is challenging due to the nature of the process itself. An alternative approach—also from a cost perspective—is using extruded profiles with ... -
Dimensional variability of formed aluminium extrusions : a study of rotary stretch-bending and mechanical calibration processes
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:164, Doctoral thesis, 2010)The present thesis consists of two parts: Part 1 includes the Rotary Stretch-Bending (RSB) of profiles and Part 2 the mechanical calibration of crash-boxes. The main challenge in the present work is to control the dimensional ... -
Dimensjonering av havbrukskonstruksjoner
(Bachelor thesis, 2023)Åpne merder gir flere fordeler, som å utnytte havstrømmer og ikke kreve energi til vannpumping. Sjøvannet i disse merdene gir bedre forhold for helse og vekst til fisk og er også mer kostnadseffektivt sammenlignet med ... -
Dimensjonering, analyse og testing av inserts i karbonfiber kompositt sandwich chassis
(Master thesis, 2014)I arbeidet med denne avhandlingen har det blitt utført et omfattende arbeid på ulike aspekter ved utviklingen av et monocoque chassis designet for å konkurrere i Formula Student. Analyse, dimensjonering og produksjon er ... -
Dimensjonering, analyse og testing av inserts i karbonfiber kompositt sandwich chassis
(Master thesis, 2014)I arbeidet med denne avhandlingen har det blitt utført et omfattende arbeid på ulike aspekter ved utviklingen av et monocoque chassis designet for å konkurrere i Formula Student. Analyse, dimensjonering og produksjon er ... -
Dimensjonsstabilitet til et nytt elektromagnetisk komposittmaterial til bruk i elektriske motorer
(Master thesis, 2019)I denne oppgaven studerer vi statorer til elektriske motorer laget med en ny produksjon-steknologi og disses oppførsel under termisk ekspansjon og herdekrymp. Statoren, som er den stasjonære delen i en elektrisk motor, ... -
Dimensjonsstabilitet til et nytt elektromagnetisk komposittmaterial til bruk i elektriske motorer
(Master thesis, 2019)I denne oppgaven studerer vi statorer til elektriske motorer laget med en ny produksjonsteknologi og disses oppførsel under termisk ekspansjon og herdekrymp. Statoren, som er den stasjonære delen i en elektrisk motor, ... -
Direct Integration of Strained-Pt Catalysts into Proton-Exchange-Membrane Fuel Cells with Atomic Layer Deposition
(Peer reviewed; Journal article, 2021)The design and fabrication of lattice-strained platinum catalysts achieved by removing a soluble core from a platinum shell synthesized via atomic layer deposition, is reported. The remarkable catalytic performance for the ... -
Directed Energy Deposition versus Wrought Ti-6Al-4V: A Comparison of Microstructure, Fatigue Behavior, and Notch Sensitivity
(Journal article; Peer reviewed, 2019)Laser Engineered Net Shaping (LENS), a Direct Energy Deposition (DED) additive manufacturing process is a 3D manufacturing process generally used to produce fully dense parts or to repair/add additional material to an ... -
Directional fatigue behaviour of maraging steel grade 300 produced by laser powder bed fusion
(Peer reviewed; Journal article, 2021)Surfaces of metals produced by additive manufacturing (AM) are known to be rough and populated with defects, this is, in particular, true for downward-facing (down-skin) surfaces. When dealing with the fatigue of as-built ... -
Directional Wells in Shallow Reservoirs using Curved Conductors and Hammering - Concept and analysis of a novel installation method for curved conductors
(Master thesis, 2015)One of the challenges encountered when planning wells in shallow reservoirs in the arctic is the development of a plan to drill a relief well. According to NORSOK such a plan is required to be in place prior to the initiation ... -
Discrete Element Modeling of FDM Printed Specimens
(Master thesis, 2021)FDM-teknologi har nylig vekket økt oppmerksomhet i industri og blant forbrukere. Det har derimot enda ikke sett utbredt bruk i strukturelle sammenhenger. I denne oppgaven testes discrete element method (DEM), som nylig har ... -
Disruption management in the airline industry
(Master thesis, 2015)The first point of the study purpose is taken into account in the second and third chapter of this work. It helps to create the ground of the successive argument and it also shows the main problem that could generate a ... -
Dissecting the project anatomy: Understanding the cost of managing construction projects
(Peer reviewed; Journal article, 2021)The total cost of a construction project involves both the cost of production and the transaction costs associated with managing the project. However, we know surprisingly little about the magnitude of transaction costs ... -
Dissolution kinetics of R-glass fibres: Influence of water acidity, temperature, and stress corrosion
(Journal article; Peer reviewed, 2019)Glass fibres slowly degrade due to dissolution when exposed to water. Such environmental aging results in the deterioration of the mechanical properties. In structural offshore and marine applications, as well as in the ... -
Dissolving Cylinder Zero-Order Kinetic Model for Predicting Hygrothermal Aging of Glass Fiber Bundles and Fiber-Reinforced Composites
(Chapter, 2018)Glass fibers and fiber-reinforced composites degrade when exposed to water. Understanding the dissolution behaviour of glass in fiber-reinforced composites is necessary to predict the changes in physical and mechanical ...