Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 10413-10432 of 23229
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Hybrid modelling for mooring system monitoring - A digital twin framework for floating wind turbines
(Master thesis, 2022)Flytende havvind har potensiale til å være en viktig bidragsyter mot verdens behov for fornybar energi. Vedlikeholds og installasjons kostnader må reduseres for at teknologien skal bli et konkurransedyktig alternativ til ... -
A hybrid multi-stage methodology for remaining useful life prediction of control system: Subsea Christmas tree as a case study
(Peer reviewed; Journal article, 2023)With the improvement of control system composition and operation process complexity, the uncertainty in its operation process increases and real-time observation data is difficult to obtain, and the influence of noise also ... -
Hybrid Observer Combining Measurements of Different Fidelities
(Journal article; Peer reviewed, 2016)A signal-based hybrid observer combining measurements of different fidelities is proposed for position and velocity estimation of marine vessels. The concept assumes that noisy position measurements are available only ... -
Hybrid observer concept for sensor fusion of sporadic measurements for underwater navigation
(Peer reviewed; Journal article, 2020)Accurate underwater navigation systems are required for closed-loop guidance and control of unmanned underwater vehicles (UUV). This paper proposes a sensor-based hybrid translational observer concept for underwater ... -
Hybrid observer for improved transient performance of a marine vessel in dynamic positioning
(Journal article; Peer reviewed, 2016)Dynamic positioning (DP) systems are used on marine vessels for automatic station keeping and tracking operations solely by use of thrusters. Observers are key components of DP systems, and two main types are proposed in ... -
Hybrid Observers for Autonomous Surface Vessels Experiencing Varying Operational Conditions
(Master thesis, 2021)Denne masteroppgaven tar for seg bruk av hybrid kontrollteori for å forbedre observer-ytelse i transienter på grunn av varierende operasjonelle forhold for marine overflatefartøy. Oppgaven begynner med litteraturstudie ... -
Hybrid park at Stokkfjellet; Combining solar and wind power in the same grid
(Bachelor thesis, 2023)Denne oppgaven analyserer tre alternativer for drift av en foreslått hybridpark ved et allerede eksisterende vindkraftverk på Stokkfjellet. Dette gjøres ved å simulere et PV-system og utforske tre forskjellige scenarioer ... -
Hybrid power plant concepts for marine vessels
(Master thesis, 2017)As the requirements of energy supply for ships and marine vessels are becoming more rigorous and complex, new power supply methods are in highly interests in recent years. Flywheels used for energy storage have been used ... -
A Hybrid Power System Laboratory: Testing Electric and Hybrid Propulsion
(Peer reviewed; Journal article, 2019)Onboard hybrid power systems with low -emission energy carriers are a promising solution for green shipping replacing conventional diesel engine -based energy systems. However, there are several existing challenges related ... -
Hybrid principal component analysis technique to machine-part grouping problem in cellular manufacturing system
(Journal article; Peer reviewed, 2013)This article portrays a hybrid principal component analysis (PCA)-based technique to construct production cells in cellular manufacturing system (CMS). The key problem in CMS is to recognise the machine cells and corresponding ... -
Hybrid Prognostic Model for Residual Useful Life Estimation of Degraded Equipment
(Master thesis, 2015)As the consequence of the more widely used complex systems, there has been a shift in maintenance strategy. The traditional corrective maintenance is gradually replaced by preventive maintenance or even more advanced ... -
Hybrid Serving of DOE and RNN-Based Methods to Optimize and Simulate a Copper Flotation Circuit
(Peer reviewed; Journal article, 2022)Prediction of metallurgical responses during the flotation process is extremely vital to increase the process efficiency using a proper modeling approach. In this study, two new variants of the recurrent neural network ... -
Hybrid testing of deep water moored structures
(Master thesis, 2014)This thesis presents a design concept for deep water model testing of moored floating offshore structures in ocean basin, and presents a single degree of freedom (SDOF) test setup for this purpose. Conventional methods has ... -
Hybrid Testing of Deep Water Moored Structures
(Master thesis, 2010)This masters thesis presents a possible solution for deepwater model testing of floating production units (FPU) in ocean basins, and investigates some aspects of the method. At present, the existing ocean basins have a ... -
Hybrid Tracking Controller for an ASV Providing Mission Support for an AUV
(Peer reviewed; Journal article, 2022)Autonomous underwater vehicles (AUVs) rely on surface support for communication with operators and position fixes to bound inertial navigation errors. By installing an acoustic modem on an autonomous surface vehicle (ASV), ... -
Hybrid ventilasjon i moderne bygninger
(Master thesis, 2015)I bygningsindustrien blir det satt stadig strengere krav vedrørende energibruk og energieffektivitet. Samtidig er et godt inneklima viktig. Hybride mixed-mode løsninger er de siste årene lansert som et alternativ til ... -
Hybrid Welding of 45 mm High Strength Steel Sections
(Journal article; Peer reviewed, 2017)Thick section welding has significant importance for oil and gas industry in low temperature regions. Arc welding is usually employed providing suitable quality joints with acceptable toughness at low temperatures with ... -
Hybride betongkonstruksjoner
(Master thesis, 2010)Denne oppgaven tar for seg beregning og testing av hybride betongkonstruksjoner. Den inneholder også beskrivelse av materialtester. Bjelkene som testes er tenkt å være utsnitt av dekkekonstruksjoner. Konstruksjonene skal ... -
Hybride fiberarmerte betongkonstruksjoner: Tverrsnitt med flere betongtyper
(Master thesis, 2011) -
Hybridisering av MPSV-fartøy
(Bachelor thesis, 2022)I et samfunn med mye klimagassutslipp og et økende fokus på klimapolitikk, blir den maritime næringen og shipping-industrien tvunget til å tenke nytt. Fra IMO er det bestemt utslippsgrenser for enkelte havområder, noe det ...