Blar i Institutt for konstruksjonsteknikk på forfatter "Øiseth, Ole Andre"
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Fatigue damage in an offshore wind turbine using probability density evolution
Eiken, Odd (Master thesis, 2017)Due to large variability of the offshore environment, the load analysis of an offshore wind turbine is a complex task. It is normally performed in the time domain, by running Monte Carlo simulations. However, this is usually ... -
Field investigations of crosswinds and vehicle-driver response on bridges
Reymert, Sebastian (Doctoral theses at NTNU;2023:41, Doctoral thesis, 2023)There are currently no scientific, evidence-based guidelines for designing windrelated traffic regulations on Norwegian road bridges. The topic of crosswindexposed vehicles on bridges has been studied theoretically, ... -
Force identification and response estimation in floating and suspension bridges using measured dynamic response
Petersen, Øyvind Wiig (Doctoral theses at NTNU;2019:88, Doctoral thesis, 2019)The trend of constructing bridges that are longer, more slender, and more flexible increases the importance of the assessment of dynamic behavior. Herein, it is imperative to have a good understanding of the environmental ... -
Full-scale investigation of the effects of wind turbulence characteristics on dynamic behavior of long-span cablesupported bridges in complex terrain
Fenerci, Aksel (Doctoral theses at NTNU;2018:100, Doctoral thesis, 2018)The global demand for long-span cable-supported bridges are emerging. Impressive number of projects have been realized in the last two decades and many more projects are in their planning, design or construction phases ... -
Heuristic models for wear prediction and dynamic-based condition monitoring techniques in pantograph-catenary interaction
Derosa, Stefano (Doctoral theses at NTNU;2020:381, Doctoral thesis, 2020)Railway catenaries are key components of electric railways, representing for the trains both their power source and their performance limiter. Although the amount of electrified railways is noticeably lower than the ... -
Hydrodynamic interaction of floating bridge pontoons and its effect on the bridge dynamic responses
Fenerci, Aksel; Kvåle, Knut Andreas; Xiang, Xu; Øiseth, Ole Andre (Peer reviewed; Journal article, 2022)As pontoons of floating bridges respond to the dynamic actions of the wind and wave loading, additional forces are imposed on the pontoons due to the hydrodynamic interaction of these floating bodies. The wave forces on a ... -
Inverse identification of buffeting and self-excited wind loads on the {Hardanger} bridge from acceleration data
Petersen, Øyvind Wiig; Øiseth, Ole Andre; Nord, Torodd Skjerve; Lourens, Eliz-Mari (Chapter, 2019)The traditional wind load assessment for long-span bridges rely on assumed models for the wind field and aerodynamic coefficients from wind tunnel tests, which usually introduces some uncertainties. It is therefore desired ... -
Investigation of dynamic wind loads on a long-span suspension bridge identified from measured acceleration data
Petersen, Øyvind Wiig; Øiseth, Ole Andre; Lourens, Eliz-Mari (Journal article; Peer reviewed, 2020)The traditional wind load assessment for long-span bridges relies on assumed models for the wind field and aerodynamic coefficients from wind tunnel tests, which usually introduce some uncertainties. Recent studies have ... -
Investigations of the long-term extreme buffeting response of long-span bridges using importance sampling Monte Carlo simulations
Fernandez Castellon, Dario Rafael; Fenerci, Aksel; Øiseth, Ole Andre; Petersen, Øyvind Wiig (Peer reviewed; Journal article, 2022)Several studies have shown that site measurements of the buffeting responses of long-span bridges do not always agree with predictions from analytical models. The observed discrepancy is believed to be explained by the ... -
Kartlegging av vindindusert dynamisk oppførsel av Gjemnessundbrua
Karlsen, Øyvind Asbjørn (Master thesis, 2016)I forbindelse med prosjektet ferjefri E39, er Statens vegvesen interessert i samarbeid med parter der motivasjonen er relevant forskning til prosjektet. Derfor har Statens vegvesen og NTNU inngått en avtale hvor studentene ... -
Laminar flow-induced vibration of a three-degree-of-freedom circular cylinder with an attached splitter plate
Zhang, Mingjie; Øiseth, Ole Andre; Xu, Fuyou (Peer reviewed; Journal article, 2021)Splitter plates are widely used for drag reduction and vibration control or enhancement of circular cylinders. The effects of a splitter plate on the vertical flow-induced vibrations of a circular cylinder have been well ... -
Load model of historic traffic for fatigue life estimation of Norwegian railway bridges
Frøseth, Gunnstein T. (Doctoral theses at NTNU;2019:73, Doctoral thesis, 2019)Material fatigue is the primary damage mechanism in steel railway bridges and ultimately causes material fracture and eventually component and system failure. It is essential that the infrastructure owner can predict and ... -
Long-term extreme buffeting response investigations for longspan bridges considering uncertain turbulence parameters based on field measurements
Lystad, Tor Martin (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
Lystad, Tor Martin; Fenerci, Aksel; Øiseth, Ole Andre (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 cable-supported bridges with floating pylons subjected to wind and wave loads
Xu, Yuwang (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 response of a curved floating bridge to inhomogeneous wind fields
Morais da Costa, Bernardo; Wang, Jungao; Jakobsen, Jasna Bogunovic; Snæbjörnsson, Jonas Thor; Øiseth, Ole Andre (Peer reviewed; Journal article, 2023)A numerical model of a 5 km long curved floating bridge, planned for the Bjørnafjord, in Norway, is subjected to strong wind events with stationary mean properties that vary along the bridge axis. A Weather Research and ... -
Measuring Vibrations and assessing Dynamic Properties of tall Timber Buildings - Måling av vibrasjoner og kartlegging av dynamiske egenskaper i høye trehus
Hansen, Ola; Fjeld Olsen, Magnus (Master thesis, 2016)The main goal behind this thesis is to evaluate the dynamic properties of the worlds tallest timber building, Treet, in Bergen. The dynamic properties will be extracted from recorded acceleration time series. Measurements ... -
Model uncertainty assessment for wave- and current-induced global response of a curved floating pontoon bridge
Viuff, Thomas Hansen; Xiang, Xu; Øiseth, Ole Andre; Leira, Bernt Johan (Peer reviewed; Journal article, 2020)The present paper provides a comparison between the numerical and experimental response for a generic floating pontoon bridge structure, thereby also serving to quantify the inherent uncertainties associated with both types ... -
Model-based stochastic-deterministic State and Force Estimation using Kalman filtering with Application to Hanko-1 Channel Marker
Petersen, Øyvind Wiig (Master thesis, 2014)Force identification in structural dynamics is an inverse problem concerned with finding loads from measured structural response. The main objective of this thesis is to perform and study state (displacement and velocity) ... -
Model-based stochastic-deterministic State and Force Estimation using Kalman filtering with Application to Hanko-1 Channel Marker
Petersen, Øyvind Wiig (Master thesis, 2014)Force identification in structural dynamics is an inverse problem concerned with finding loads from measured structural response. The main objective of this thesis is to perform and study state (displacement and velocity) ...