Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 12930-12949 av 23007
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Long-term Analysis of Gear Loads in Fixed Offshore Wind Turbines Considering Ultimate Operational Loadings
(Journal article; Peer reviewed, 2013)The long-term extreme value analysis of gear transmitted load due to the main shaft torque is presented. Two methods, the multibody simulations (MBS) and a simplified method, are demonstrated for the gear transmitted load ... -
Long-Term Berth Capacity Planning Framework Development
(Master thesis, 2019)Havtransport bidrar sterkt til omfanget og velstanden i dagens globale handel. Havn er en viktig logistikkinfrastruktur i sjøtransport og har en direkte tilknytning til et lands økonomiske ytelse. Det europeiske havnesystemet ... -
Long-term creep prediction with a modified power law model
(Chapter, 2017)Creep in weak rock is a common phenomenon observed in the laboratory. Based on short-term creep, prediction of long-term creep can be a challenge especially at elevated stress levels, since only a small stress increase may ... -
Long-Term Dissolution of Glass Fibers in Water Described by Dissolving Cylinder Zero-Order Kinetic Model: Mass Loss and Radius Reduction.
(Journal article; Peer reviewed, 2018)Glass fibers are degraded when they are exposed to water. In this work, a model is developed that uses zero-order kinetics for predicting a decreasing glass fiber radius. The model is used to describe experimental test ... -
Long-term extreme buffeting response investigations for longspan bridges considering uncertain turbulence parameters based on field measurements
(Doctoral theses at NTNU;2021:216, Doctoral thesis, 2021)When bridges become increasingly longer, the dynamic behavior from wind and waves can dominate the structural load effects. To build better knowledge about the dynamic behavior of long-span bridges subjected to turbulent ... -
Long-term extreme buffeting response of cable-supported bridges with uncertain turbulence parameters
(Peer reviewed; Journal article, 2021)Although the full long-term method (FLM) is recognized as the appropriate way to identify the design stresses of marine structures subjected to stochastic environmental loading, the FLM has not yet been adopted for the ... -
Long-term extreme response analysis of a long-span pontoon bridge
(Journal article; Peer reviewed, 2018)For the assessment of extreme load effects needed in design of marine structures, a full long-term analysis is recognized as the most accurate approach. However, due to the very large number of structural response analyses ... -
Long-term extreme response analysis of cable-supported bridges with floating pylons subjected to wind and wave loads
(Doctoral theses at NTNU;2018:229, Doctoral thesis, 2018)A suspension bridge with floating pylons is a possible solution to cross a fjord with a large width and great depth. This new concept is a combination of a slender suspension bridge and tension-leg platforms supporting the ... -
Long-Term Extreme Response Analysis of Marine Structures Using Inverse Reliability Methods
(Doctoral theses at NTNU;2017:298, Doctoral thesis, 2017)For the assessment of extreme responses needed in design of marine structures, a full long-term analysis is recognized as the most accurate approach. However, due to the very large number of structural response analyses ... -
Long-term extreme response analysis of marine structures using inverse SORM
(Chapter; Peer reviewed, 2017)In this paper the first order reliability method (FORM) found in connection with structural reliability analysis is first used in an inverse manner to efficiently obtain an approximate solution of the full long-term extreme ... -
Long-term extreme response and reliability of a vessel rolling in random beam seas
(Journal article; Peer reviewed, 2018)In this paper, the long-term extreme response of a vessel rolling in random beam seas and the associated reliability evaluation are addressed. The long-term response analysis is based on the upcrossing rates of the roll ... -
Long-Term Fatigue Damage Sensitivity to Wave Directionality in Extra Large Monopile Foundations
(Journal article, 2017)The fatigue damage sensitivity to wave directionality on large-diameter monopile foundations for use in the offshore wind turbine industry is investigated. A frequency domain approach with the Dirlik method is used for a ... -
Long-Term Hydrolytic Degradation of the Sizing-Rich Composite Interphase
(Journal article; Peer reviewed, 2019)Glass fiber-reinforced composites are exposed to hydrolytic degradation in subsea and offshore applications. Fiber-matrix interphase degradation was observed after the matrix was fully saturated with water and typical water ... -
Long-term impact on unlined tunnels of hydropower plants due to frequent start/stop sequences
(Doctoral theses at NTNU;2021:400, Doctoral thesis, 2021)Abstract The concept of unlined pressure tunnel design is well-tested and has a history of more than 100 years. In Norway, more than 95% of hydropower pressure tunnels are unlined and most of it was built between 1950 ... -
Long-term Influence of Concrete Surface and Crack Orientation on Self-healing and Ingress in Cracks – Field Observations
(Journal article; Peer reviewed, 2018)This paper presents results from investigations on the long-term influence of concrete surface and crack orientation on ingress in cracks. Five reinforced concrete structures from Norway exposed to either de-icing salts ... -
Long-term ISO 23936-2 sweet oil ageing of HNBR
(Journal article; Peer reviewed, 2021)A hydrogenated nitrile butadiene rubber (HNBR) compound is subjected to ageing in a simulated oil and gas environment in accordance with ISO 23936-2 standard at two elevated temperatures (130 °C and 150 °C) for a period ... -
Long-term joint distribution of environmental conditions in a Norwegian fjord for design of floating bridges
(Journal article; Peer reviewed, 2019)A floating bridge is an attractive solution for crossing wide and deep fjords. To design a reliable and cost-effective floating bridge, it is very important to accurately evaluate the long-term environmental conditions at ... -
Long-term meteorological data collection in Prato Piazza
(Bachelor thesis, 2023)Denne oppgaven tar for seg tverrfaglige teknikker til å belære seg om matematisk modellering, klimatologi og meterologi ved å benytte programmering. Hensikten med oppgaven er å føre værstatistikk av området Prato Piazza ... -
Long-term monitoring of wind field characteristics and dynamic response of a long-span suspension bridge in complex terrain
(Journal article; Peer reviewed, 2017)Long-term monitoring data of wind velocities and accelerations on the Hardanger Bridge are used to investigate the relationship between the wind-loading and response processes. The extensive measurement system consisting ... -
Long-Term Properties of Interlaminar Shear Strength of Composite Laminates
(Master thesis, 2018)Components made of fiber reinforced polymers (FRP) are frequently used in environments with fluctuating temperatures and moisture levels. These environmental factors lead to a degradation of the FRP in the long term. The ...