Blar i Institutt for marin teknikk på tittel
Viser treff 2114-2133 av 3412
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Multi-objective Optimisation of FPSO Hull Geometry Using Genetic Algorithm Variations
(Master thesis, 2020)En flytende produksjons-, lagrings- og avlastningsenhet (FPSO) er ofte det eneste levedyktige alternativet for olje- og gassproduksjon på dypt vann. Flere reservoarer blir oppdaget på dypt vann, og populariteten til FPSO-er ... -
Multi-purpose Offshore Platforms: Past, Present and Future Research and Developments
(Chapter, 2017)Energy, fisheries and transport infrastructures are increasingly being established offshore. Facilities such as offshore wind farms may occupy large areas and compete with other users of the maritime space. Accordingly, ... -
Multi-Sensors Relocation
(Master thesis, 2023)Our research has focused on exploring the integration of FLS and SAS data for target relocation, contributing to the advancement of underwater exploration and survey missions for both industrial and research applications. Through ... -
Multi-step-ahead forecasting of wave conditions based on a physics-based machine learning (PBML) model for marine operations
(Peer reviewed; Journal article, 2020)Short-term wave forecasts are essential for the execution of marine operations. In this paper, an efficient and reliable physics-based machine learning (PBML) model is proposed to realize the multi-step-ahead forecasting ... -
Multimodal method in sloshing
(Journal article; Peer reviewed, 2017)The multimodal method reduces the sloshing problem with free surface to a (modal) system of nonlinear ordinary differential equations. The method was originally proposed for nonimpulsive hydrodynamic loads. However, recently ... -
Multiple-degree-of-freedom actuation of rotor loads in model testing of floating wind turbines using cable-driven parallel robots
(Journal article; Peer reviewed, 2018)Model testing of offshore structures in ocean basins has been accepted as a necessary step for the validation and calibration of numerical models, as well as for final design checks in extreme environments. While offshore ... -
Multivariabel Analyse av Havstrømmer i Barentshavet
(Master thesis, 2019)Analyser for parameterreduksjon og prediksjon er utført på et hindcast datasett fra et bestemt område i Barentshavet. Tre analysemetoder, PCA, PLSR og GPR utføres på et utvalg scenarioer og datamengder. Principal Component ... -
Multivariate Data Analysis in Conceptual Vessel Design - A Study of Offshore Construction Vessels
(Master thesis, 2017)This thesis investigates how the use of a design methodology based on multivariate data analysis can create a reliable and robust source of knowledge to reduce complexity, and support and complement the decision-making ... -
A multi‐layer framework for energy efficiency assessment of shore‐to‐ship fast charging systems including onshore batteries
(Peer reviewed; Journal article, 2022)This paper proposes a three-layer framework for energy efficiency evaluation of Shore-to-Ship Charging (S2SC) systems using load-dependent loss models of the components. The considered S2SC system is supplied by the grid ... -
Natural frequency estimation by using torsional response, and applications for wind turbine drivetrain fault diagnosis
(Journal article; Peer reviewed, 2020)A method based on torsional vibration measurements for a system-level condition monitoring of the drivetrain system is developed in this paper. The latter is tested by using a 10MW wind turbine drivetrain simulation model, ... -
Navigation and collision avoidance of underwater vehicles using sonar data
(Journal article; Peer reviewed, 2018)Collision avoidance is one of the main challenges in the field of autonomous underwater vehicles (AUV). In this paper a method for detecting obstacles is proposed, using a single-beam mechanically scanning sonar, including ... -
Navigation and Control of Underwater Robotic Vehicles
(Doctoral theses at NTNU;2018:86, Doctoral thesis, 2018)The thesis considers navigation and control of underwater robotic vehicles, and is divided into two parts, with more emphasis on Part II. Part I considers stabilization of the end effector of an underwater vehicle-manipulator ... -
Navigation of ROVs and Basic Signal Processing
(Master thesis, 2011)A dynamic positioning (DP) system for a ROV is being developed in the Automated Underwater Robotics (AUR) laboratory at the Norwegian University of Science and Technology (NTNU). The AUR lab at NTNU has a ROV and a research ... -
Navigation techniques for underwater vehicles in polar regions
(Master thesis, 2020)Hovedfokuset for denne masteroppgaven har vært å forbedre navigasjonssystemer for AUVer og tilpasse dem polare strøk. Metodene er implementert og testet i simulering. Menneskeskapte utfordringer som global oppvarming ... -
Navigation, guidance, and control for autonomous docking of ships
(Master thesis, 2020)Denne oppgaven presenterer en autonom dokkingkontroller som bruker tradisjonelle sensorer, med hjelp av nærhetssensorer. Dokkingkontrolleren er i stand til å legge et marint overflatefartøy til kai autonomt på en sikker ... -
Analysis of the ballast system of WindFlip
(Master thesis, 2010) The thesis firstly includes a study of the structure and requirements of a general ballast system. Based on this knowledge a ballast system suiting the needs of the WindFlip concept was designed through using the ... -
Guidelines for selection of a ship ballast water treatment system.
(Master thesis, 2010)The purpose of the thesis was to develop a decision support system for ballast water treatment systems, considering both technical and economical aspects of the system. This was done by developing a two part model, which ... -
Heavy Lift Methods in Decommissioning of Installations
(Master thesis, 2010) In this report decommissioning of offshore petroleum platforms have been investigated. It treats decommissioning in general, the process of a typical project. A variety of suitable lifting vessels have been presented, ... -
Loads on the Hywind wind turbine during the "flipping-phase" with WindFlip
(Master thesis, 2010)WindFlip is a concept for transportation and installation of fully assembled floating offshore wind turbines. In this master thesis the relevant part of the operation is the flipping-phase. The flipping-phase is defined ... -
Mikrokraftverk for varme- og strømproduksjon
(Master thesis, 2010)Målet for masteroppgaven var å gjøre målinger på en dampmaskin ved MTS under forskjellige driftstilstander og finne ut hvordan den effektivt kan brukes under forskjellig driftstilstander. Når anlegget er ferdig skal det ...