Browsing Institutt for marin teknikk by Title
Now showing items 3199-3218 of 3428
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Towards autonomous underwater navigation and perception for end-to-end ship hull inspection
(Doctoral theses at NTNU;2024:68, Doctoral thesis, 2024)This thesis presents an innovative and integrated solution for end-to-end underwater ship hull inspection using a small and low-cost Remotely Operated Vehicle (ROV). In a world where maritime activities have significant ... -
Towards autonomy in ROV operations
(Journal article, 2015)This paper presents an on-going research project focusing on the development of technology to enable autonomy in ROV operations. The project is a collaborative project between Norwegian offshore industry and academia. ... -
Towards carbon-free mobility: The feasibility of hydrogen and ammonia as zero carbon fuels in spark ignition light-duty vehicles
(Peer reviewed; Journal article, 2024)Global warming is a major environmental issue caused by the release of greenhouse gases, such as carbon dioxide into the atmosphere. Light-duty vehicles (LDVs) including passenger cars and light-duty trucks, are a significant ... -
Towards carbon-free mobility: The feasibility of hydrogen and ammonia as zero carbon fuels in spark ignition light-duty vehicles
(Journal article; Peer reviewed, 2024)Global warming is a major environmental issue caused by the release of greenhouse gases, such as carbon dioxide into the atmosphere. Light-duty vehicles (LDVs) including passenger cars and light-duty trucks, are a significant ... -
Towards contract-based verification for autonomous vessels
(Peer reviewed; Journal article, 2023)Design and verification of autonomous vessels represent a major interdisciplinary engineering challenge due to the combination of high system complexity and the interaction with dynamic, uncertain, and unstructured ... -
Towards gradient-based design optimization of fully-flexible tension-leg platform wind turbines
(Peer reviewed; Journal article, 2022)Novel technologies and design methods are needed to enable cost-competitive development of wind turbines with floating foundations. Tension-leg platforms have an established history in the oil and gas industry, though the ... -
Towards Remaining Life Assessment by use of Conditional Adversarial Networks
(Master thesis, 2021)Statistikk viser at fler-tallige tap av forankringsliner har skjedd tidlig i den designede levetiden. Forankringsliner av kjetting var ansvarlige for opptil 50 % av alle tap, hvor utmatting var en av hoved°arsakene for ... -
Towards Remaining Life Assessment Using Machine Learning
(Master thesis, 2021)Brudd i ankerkjettinger grunnet korrosjon og utmatting er et problem offshorenæringen møter. Brudd i flere kjettinger i permanent oppankrede systemer har vist seg å ha en årlig frekvens på omtrent 3 x 10^-3 og de fleste ... -
Towards Robust Autonomy of Underwater Vehicles in Arctic Operations
(Master thesis, 2019)Denne masteroppgaven undersøker verktøy og metoder for å utvikle mer robuste autonomiløsninger for autonome undervannsfarkoster (AUV) i arktiske underisoperasjoner. AUVer er effektive plattformer for tverrfaglig vitenskapelig ... -
Towards Safer, Smarter and Greener Ships Using Hybrid Marine Power Plants
(Journal article; Peer reviewed, 2017)This chapter gives an overview of research activities carried out at NTNU AMOS in relation to hybrid marine power plants enabling safer, smarter and greener ships. Recently electrical power plants with a set of diesel-generator ... -
Towards Safety Barrier Analysis of Hydrogen Powered Maritime Vessels
(Chapter, 2021)This paper focuses on the use of safety barrier analysis, during the design phase of a vessel powered by cryogenic hydrogen, to identify possible weaknesses in the architecture. Barrier analysis can be used to evaluate a ... -
Towards supervisory risk control of autonomous ships
(Peer reviewed; Journal article, 2020)The objective of this paper is to outline a framework for online risk modelling for autonomous ships. There is a clear trend towards increased autonomy and intelligence in ships because it enables new functionality, as ... -
Tower Design for a 10MW Floating Offshore Wind Turbine with Reduced Stiffness
(Master thesis, 2020)Abstract will be available on 2023-07-01 -
Tower design for very large floating wind turbines
(Master thesis, 2022)Flytende havvind kan utnytte vindpotensial på dypere vann og være en verdifull kilde til fornybar og ren energi. For at disse vindturbinene skal bli kostnadseffektive, er det nødvendig å oppskalere. Ved oppskalering kan ... -
Trajectory Planning for Navigation Aiding of Autonomous Underwater Vehicles
(Peer reviewed; Journal article, 2020)Autonomous underwater vehicles can perform seabed surveys with a higher resolution and quality than from equivalent ship-mounted sensors. Although high-grade inertial navigation systems aided by Doppler velocity logs can ... -
Trajectory Tracking Motion Control System for Observation Class ROVs
(Journal article, 2013)This paper proposes a MCS (Motion Control System) with trajectory tracking capability for observation class ROVs (Remotely Operated Vehicle) used to carry out automated high-resolution image capturing missions, e.g. ... -
Transfer Learning in Underwater Operations
(Journal article, 2019)This paper investigates a method for reducing the reality gap that occurs when applying simulated data in training for vision-based operations in a subsea environment. The distinction in knowledge in the simulated and real ... -
Transient Dynamic Response of Ship Hull
(Master thesis, 2015)Slamming often occurs in severe sea states particular for high speed vessels, which can cause damage to ship hulls or even equipment on ships. Analysis of transient dynamic response of ship hulls is useful in establishing ... -
Transient dynamics of drilling riser during disconnect
(Master thesis, 2011)Drilling of petroleum wells have traditionally be done by adjusting the mud weight to balance pressure of the well. A new method of controlling well pressure is called controlled mud cap drilling. The method uses high mud ... -
Transient Performance and Emissions of a Turbocharged Diesel Engine for Marine Power Plants: Numerical Simulation and Experimental Investigation
(Doctoral theses at NTNU;2017:237, Doctoral thesis, 2017)New marine power and propulsion plants have to meet increasingly stringent environmental regulations and requirements for flexible and efficient operations. Such a multi-objective task requires a systems approach in which ...