Blar i Institutt for marin teknikk på tittel
Viser treff 3239-3258 av 3434
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Two-dimensional experimental and numerical investigations of parallel perforated plates in oscillating and orbital flows
(Peer reviewed; Journal article, 2020)The hydrodynamic loads on two-dimensional perforated plates are investigated experimentally and numerically. Two parallel plate configurations, consisting of an upper perforated plate and a lower perforated plate, are ... -
Two-dimensional experimental and numerical investigations of perforated plates in oscillating flow, orbital flow and incident waves
(Peer reviewed; Journal article, 2020)The hydrodynamic loads on two-dimensional perforated plates are investigated experimentally and numerically. Two single perforated plate configurations, consisting of rows of either circular or square cylinders, are studied. ... -
Two-dimensional ice-structure interaction for offshore wind turbines
(Master thesis, 2020)Abstract will be available on 2023-07-01 -
Two-dimensional Numerical and Experimental Investigation of Hydrodynamic Forces and Wake Interaction between Two or more Square Cylinders in Large-amplitude Oscillatory Flow
(Master thesis, 2022)Denne oppgaven tar for seg og undersøker hydrodynamiske krefter og vakeinteraksjonseffekter mellom sylindre i oscillerende strømning med stor amplitude, sett i en todimensjonal situasjon. Arbeidet er gjort gjennom både ... -
Two-Dimensional Numerical and Experimental Studies of Piston-mode Resonance
(Dr. ingeniøravhandling, 0809-103X; 2009:53, Doctoral thesis, 2009) -
Two-way coupled fluid-structure interaction of gas-liquid slug flow in a flexible riser: Small-scale experiments and simulations
(Journal article; Peer reviewed, 2019)Flexible risers might be subjected to large pressure and density fluctuations when transporting multiphase mixtures as different flow patterns may take place. Those fluctuations might induce large forces on the structure, ... -
Ultimate and residual strength assessments of intact and collision damaged columns of the Bjørnafjorden floating bridge
(Chapter, 2023)The Norwegian Public Road Administration (NPRA) has initiated an ambitious project to replace the current ferry crossing solutions with floating bridges over the wide and deep Norwegian fjords. This will substantially ... -
Ultimate Limit State Analysis of Havfarm
(Master thesis, 2017)Marin fish farming is in rapid development. Dimensions are expected to increase and locations are being moved to areas exposed to more energetic waves and stronger current. With increasing dimensions and more challenging ... -
Ultimate strength analysis of stiffened steel and aluminium panels using semi-analytical methods
(Dr. ingeniøravhandling, 0809-103X; 2002:131, Doctoral thesis, 2002)Buckling and postbuckling of plates and stiffened panels are considered. Computational models for direct calculation of the response are developed using large deflection plate theory and energy principles. Deflections are ... -
Ultimate Strength and Capacity Assessment of Ice Class Vessel Operating in Ice
(Master thesis, 2016)In an ongoing project between DNV GL and a customer, the ultimate strength and damage on a ship exposed to ice loading are to be assessed. The vessel has the DNV GL class notation Ice(1A*), but is now considered for operation ... -
Ultimate Strength and Post-Ultimate Behavior of Hybrid Platform Deck Girders
(Master thesis, 2014)As for the increasing demands of offshore oil and gas, the new platforms are designed in more and more serious conditions. The safety check and modification of the complex structure has become a hot subject. Normally, the ... -
Ultimate Strength and Reliability based Design of Ship Hulls with Emphasis on Combined Global and Local Loads
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:27, Doctoral thesis, 2009)During the last few decades, the emphasis in structural design of ships has moved from the allowable stress design to the ultimate limit state design. The ultimate limit state represents the collapse of the structure due ... -
Ultimate strength of aluminium panels, considering HAZ effects
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:326, Doctoral thesis, 2011)Aluminium stiffened panels have been increasingly used in marine, offshore and transportation industries, especially where high strength/weight ratio structures are highly required. However, the ultimate strength of aluminium ... -
Ultimate strength of welded aluminium stiffened panels under combined biaxial and lateral loads: A numerical investigation
(Peer reviewed; Journal article, 2024)The number and size of aluminium non-monohull ships have been steadily increasing over time. This raises growing concerns regarding their structural strength, especially considering the adverse effects of the heat-affected-zone ... -
Ultimate- and Fatigue Limit State Analysis of a Rigid Offshore Aquaculture Structure
(Master thesis, 2015)Marine fish farming is in rapid development, dimensions are expected to increase, and locations are being moved to areas exposed to more energetic waves and stronger currents. New and extreme loading scenarios need to be ... -
Unburned Hydrocarbon Formation in a Natural Gas Engine Under Sea Wave Load Conditions
(Peer reviewed; Journal article, 2020)Although natural gas is documented as a low-emission fuel compared to the other traditional fossil fuels in internal combustion engines, recent research indicates large amounts of methane emission released by lean burn gas ... -
Uncertainties in current measurements in the northern North Sea
(Journal article; Peer reviewed, 2017)A met–ocean measurement program of waves and current profiles at five locations in the northern North Sea was performed over a period of approximately 5 years. Despite quality control, the measured current speed data ... -
Uncertainties In Predicted Extreme Wave Induced Platform Response
(Master thesis, 2014)Before the long term response prediction is performed, a generic response function is firstly introduced. The generic response function is given as a function of weather characteristics in terms of hs and tp, and the shape ... -
Uncertainties in the Design of Monopile Offshore Wind Turbines
(Doctoral theses at NTNU;2023:276, Doctoral thesis, 2023)English summary If the ambitious targets for growth in installed capacity of offshore wind turbines over the next decades are to be met, more cost-efficient wind farms need to be developed. One way of achieving this can ... -
Uncertainties of Ship Speed Loss Evaluation Under Real Weather Conditions
(Chapter, 2018)A correct assessment of the ship speed loss in conditions of exploitation is becoming increasingly important for ship owners as well as ship designers. We are witnessing the increasing concern for the environment and ...