Blar i NTNU Open på forfatter "Øiseth, Ole Andre"
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Modellering og dynamisk analyse av endeforankret flytebro over Bjørnafjorden utsatt for bølgeindusert respons
Hansteen, Lars Christian; Mangor-Jensen, Jørgen (Master thesis, 2017)Statens vegvesen planlegger en fergefri E39 lang den norske vestkysten. I den forbindelse er det satt i gang en rekke grensesprengende forskningsprosjekter for fjordkryssinger med flere ulike brukonsepter. Bjørnafjorden ... -
Modelling of the self-excited forces for bridge decks subjected to random motions: an experimental study
Siedziako, Bartosz (Doctoral theses at NTNU;NTNU, 2018:52, Doctoral thesis, 2018)This thesis concerns the dynamic behaviour and analysis of long-span bridges subjected to wind loading and, in particular, the modelling of self-excited forces based on wind tunnel measurements. The goal of this PhD study ... -
Multi-span Suspension Bridge with Floating Towers
Brunstad, Ørjan (Master thesis, 2013)The Norwegian Public Roads Administration (NPRA) is currently conducting a feasible study of crossing 8 fjords on the west coast of Norway. The most challenging crossing is the 3700 m wide Sognefjord. Three main concepts ... -
Non-Stationary Buffeting Response of Slender Suspension Bridges
Løvik, Åsmund Romstad (Master thesis, 2018)This thesis presents a generalized framework for predicting dynamic structural response of slender, horizontal and line like structures. This general framework is subsequently adopted and streamlined to the Hardanger Bridge ... -
Nonlinear modelling of aerodynamic self-excited forces: An experimental study
Skyvulstad, Henrik; Petersen, Øyvind Wiig; Argentini, Tommaso; Zasso, Alberto; Øiseth, Ole Andre (Peer reviewed; Journal article, 2021)The bridge aerodynamics research community is currently discussing several nonlinear wind load models for bridge decks, but no definite conclusion on which model is superior to the others is currently available. In this ... -
Nonlinear modelling of aerodynamic self-excited forces: An experimental study
Skyvulstad, Henrik; Argentini, Tommaso; Zasso, Alberto; Øiseth, Ole Andre (Peer reviewed; Journal article, 2021)The bridge aerodynamics research community is currently discussing several nonlinear wind load models for bridge decks, but no definite conclusion on which model is superior to the others is currently available. In this ... -
Nonparametric modeling of self-excited forces based on relations between flutter derivatives
Papinutti, Mitja; Četina, Matjaž; Brank, Bostjan; Petersen, Øyvind Wiig; Øiseth, Ole Andre (Peer reviewed; Journal article, 2020)Unsteady self-excited forces are commonly represented by parametric models such as rational functions. However, this requires complex multiparametric nonlinear fitting, which can be a challenging task that requires know-how. ... -
A novel methodology for design optimization of heat recovery steam generators with flow-induced vibration analysis
Deng, Han; Skaugen, Geir; Næss, Erling; Zhang, Mingjie; Øiseth, Ole Andre (Peer reviewed; Journal article, 2021)Design of compact, lightweight, and robust heat recovery steam generators (HRSGs) is important for the implementation of offshore bottoming cycles. In this work, a novel methodology integrating flow-induced vibration ... -
Numerical and experimental studies for damage detection and structural health monitoring of steel bridges
Svendsen, Bjørn T. (Doctoral theses at NTNU;2021:382, Doctoral thesis, 2021)There is a vast number of existing bridges in infrastructure that are approaching or have exceeded their original design lives. A large part of these bridges are steel and composite steel-concrete bridges. The primary ... -
Numerical Simulation and Modelling Convention of Unsteady Fluidelastic Forces of Tube Arrays
Zhang, Mingjie; Wang, Xu; Øiseth, Ole Andre (Peer reviewed; Journal article, 2021)This paper presents a numerical investigation on the unsteady fluidelastic forces of tube arrays. The key focus is on the consistency between the unsteady fluidelastic force model and the quasi-steady model for tube arrays ... -
Numerical studies on the dynamic behavior of a superlong curved pontoon bridge under wind and wave actions
Fenerci, Aksel; Xu, Yuwang; Øiseth, Ole Andre (Chapter, 2019)Floating bridges serve as attractive solutions where classical bridge concepts are not possible. However, compared to more commonly encountered bridge concepts such as cablesupported bridges, their dynamic behavior remains ... -
Operational Modal Analysis of Large Bridges
Schanke, Sindre Aavik (Master thesis, 2015)As a part of the new coastal highway E39 which is being planned and built along the west coast of Norway by the Norwegian Public Roads Administration, state of the art methods of structural dynamics needs to be developed ... -
Operational modal analysis of the Dolmsundet Bridge during construction
Hetland, Ruth (Master thesis, 2015)This study investigates the dynamic behaviour of a cantilever bridge during construction. The investigations are carried out using operational modal analysis techniques. The Second-Order Blind Identification (SOBI) Method ... -
Parametric Design and Gradient-Free Optimization of Super Long-Span Suspension Bridges
Midtgarden, Eivind Aasrum; Giske, Fredrik (Master thesis, 2018)This thesis demonstrates the feasibility of the application of using an optimizing process when designing long-span suspension bridges, using a parametric FE-model. The optimization process is tested on a proposed single ... -
Parametric Excitation of Hangers at the Hardanger Bridge
Olsen, Hans Andre Mangen; Lunde, Eirin Gundersen (Master thesis, 2016)There has been observed large vibrations on some of the longest hangers at the Hardanger Bridge. Parametric excitation has been suggested as the cause of these vibrations. The main aim of this thesis has therefore been to ... -
Probabilistic modelling of wind induced load effects for suspension bridges with emphasis on long-term extreme value analysis
Fernandez Castellon, Dario Rafael (Doctoral theses at NTNU;2022:218, Doctoral thesis, 2022)Economic development has gradually promoted an increase in the demand for and size of long-span bridges worldwide. A tangible example of such development is the Coastal Highway Route E39 led by the Norwegian Public Roads ... -
Reliability Assessment of Long Span Suspension Bridges Subjected to Dead Loads
Antonsen, Kristin (Master thesis, 2016)In the present study the influence of standardized safety factors in large and heavy structures, where the major loading arises from self-weight of the structure itself, is considered. For this purpose, a reliability ... -
Software-to-Software Comparison of End-Anchored Floating Bridge Global Analysis
Viuff, Thomas Hansen; Xiang, Xu; Leira, Bernt Johan; Øiseth, Ole Andre (Peer reviewed; Journal article, 2020)Several computer programs exist to handle general multipurpose offshore structural analysis of slender structures subjected to wave loading, although they have not been developed with the specific purpose of floating bridge ... -
System identification of the Hardanger Bridge using enhanced frequency domain decomposition
Hamang, Kristian (Master thesis, 2015)The Norwegian Public Roads Administration is commissioned to investigate feasible alternatives to eight ferry crossings along E39, located on the western coast of Norway. The most challenging crossing is the Sognefjord, ... -
Systematic Metadata Analysis of Wind-Exposed Long-Span Bridges for Road Vehicle Safety Assessments
Reymert, Sebastian; Rønnquist, Anders; Øiseth, Ole Andre (Journal article; Peer reviewed, 2022)