Browsing NTNU Open by Author "Øiseth, Ole Andre"
Now showing items 1-20 of 78
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Aerodynamic damping models for vortex-induced vibration of a rectangular 4: 1 cylinder: Comparison of modeling schemes
Zhang, Mingjie; Xu, Fuyou; Øiseth, Ole Andre (Peer reviewed; Journal article, 2020)Accurate modeling of vortex-induced force acting on a structure is of great significance to precisely evaluate its vortex-induced vibration (VIV). This paper systematically compares the capabilities of five aerodynamic ... -
Aerodynamic Effect of Non-uniform Wind Profiles for Long-Span Bridges
Lystad, Tor Martin; Fenerci, Aksel; Øiseth, Ole Andre (Chapter, 2019)Long-span bridges are often designed based on the assumption of wind field homogeneity. At the Hardanger Bridge, the wind field along the bridge span is monitored though 8 triaxial ultrasonic anemometers. Simultaneously ... -
Aerodynamic Stability of Long-span Suspension Bridges
Dalen, Magnus Aa (Master thesis, 2016)A MATLAB script for making customized finite element models of suspension bridges is created. The main purpose of the script is to perform eigenvalue analysis of different bridge setups to investigate the controlling ... -
Aeroelastic stability of a suspension bridge crossing the Sognefjord
Røe Maurset, Håvard (Master thesis, 2012)This thesis discusses the possibility of constructing a suspension bridge crossing the Sognefjord in light of the aeroelastic stability. A preliminary design has been carried out and a finite element model created in order ... -
Bridge buffeting by skew winds: A revised theory
Morais da Costa, Bernardo; Wang, Jungao; Jakobsen, Jasna Bogunovic; Øiseth, Ole Andre; Snæbjørnsson, Jonas Thor (Peer reviewed; Journal article, 2021)An improved bridge buffeting theory is established with an emphasis on skew wind directions, for both turbulence- and motion-dependent forces. It provides simplifications and generalizations of previously established ... -
Buffeting response of long-span bridges considering uncertain turbulence parameters using the environmental contour method
Lystad, Tor Martin; Fenerci, Aksel; Øiseth, Ole Andre (Peer reviewed; Journal article, 2020)Full-scale monitoring of the Hardanger Bridge has revealed significant turbulence-induced variability in the measured acceleration response. In this paper, a probabilistic model is used to describe the uncertain turbulence ... -
A comparative study of wind-induced dynamic response models of long-span bridges using artificial neural networks, support vector regression and buffeting theory
Fernandez Castellon, Dario Rafael; Fenerci, Aksel; Øiseth, Ole Andre (Journal article; Peer reviewed, 2021)Long-span cable-supported bridges are structures susceptible to high dynamic responses due to the buffeting phenomenon. The current state-of-the-art method for buffeting response estimation is the buffeting theory. However, ... -
Creating and Testing Continuous Acquisition Software with GPS Timestamps
Sandberg, Eirik Ferdinand (Master thesis, 2017)The main objective of this thesis has been to write software in LabVIEW enabling GPS time synchronization between several Compact RIOs when performing continuous acquisition of acceleration data. By providing GPS timestamps ... -
A data-based structural health monitoring approach for damage detection in steel bridges using experimental data
Svendsen, Bjørn Thomas; Frøseth, Gunnstein Thomas; Øiseth, Ole Andre; Rønnquist, Anders (Journal article; Peer reviewed, 2022)There is a need for reliable structural health monitoring (SHM) systems that can detect local and global structural damage in existing steel bridges. In this paper, a data-based SHM approach for damage detection in steel ... -
Data-driven prediction of mean wind turbulence from topographic data
Morais da Costa, Bernardo; Snæbjørnsson, Jonas Thor; Øiseth, Ole Andre; Wang, Jungao; Jakobsen, Jasna Bogunovic (Peer reviewed; Journal article, 2021)This study presents a data-driven model to predict mean turbulence intensities at desired generic locations, for all wind directions. The model, a multilayer perceptron, requires only information about the local topography ... -
Dataset for long-term wind and acceleration monitoring of the Hardanger Bridge
Fenerci, Aksel; Kvåle, Knut Andreas; Petersen, Øyvind Wiig; Rønnquist, Anders; Øiseth, Ole Andre (Peer reviewed; Journal article, 2021)A large data set of wind and acceleration data collected through long-term monitoring of the Hardanger Bridge in Norway is described in this data paper. The data set includes both raw data and organized data, and it is ... -
Design and deployment of a monitoring system on a long-span suspension bridge
Petersen, Øyvind Wiig; Frøseth, Gunnstein Thomas; Øiseth, Ole Andre (Journal article, 2021)Monitoring systems have become a standard component for many landmark bridges. This paper describes the design of a new monitoring system for the Hålogaland bridge, a suspension bridge has a main span of 1145 m located in ... -
Design of a monitoring system for a long-span suspension bridge: optimal sensor placement
Petersen, Øyvind Wiig; Øiseth, Ole Andre; Frøseth, Gunnstein Thomas (Chapter, 2020)The design of systems for structural health monitoring is an exercise that requires careful planning of optimal sensor locations. The number of possible locations usually outnumbers the number of available sensors, which ... -
Design of an experimental setup for measurements of the aerodynamic properties of bridge decks
Kaasa, Lars Halvor (Master thesis, 2012)As modern bridge design continuously aims for longer and slender bridges, it is necessary to be able to determine aerodynamic properties of such structures with a highdegree of accuracy. The horizontal degree of freedom ... -
Development and Application of a Vision-Based System for Structural Monitoring of Railway Catenary System
Jiang, Tengjiao (Doctoral theses at NTNU;2021:280, Doctoral thesis, 2021)With the continuous increase of train speed and the expansion of the railway network, health monitoring and predictive maintenance of railway infrastructure are becoming increasingly important. The increasing investments ... -
Dynamic behaviour of cablesupported bridges subjected to strong natural wind
Øiseth, Ole Andre (Doktoravhandlinger ved NTNU, 1503-8181; 2011:315, Doctoral thesis, 2011)This thesis discusses wind-induced dynamic response of slender cable-supported bridges. The focus has been on prediction of the flutter stability limit and the buffeting response in strong winds. The thesis consists of ... -
Dynamic buckling of end anchored floating bridges
Østby, Ingvild Kristine Haug; Storheim, Ørjan (Master thesis, 2018)The Bjørnafjord bridge is a floating bridge planned to be a part of The Norwegian Public Roads Administrations ferry-free road project along E39. This thesis looks into the dynamic behavior of this bridge, focusing of ... -
Dynamic response of a multi-span suspension bridge with floating pylons
Mjaaland, Anders Lessø; Øvstebø, Audun Mathias (Master thesis, 2017)The Norwegian Public Roads Administration is currently investigating the possibility of crossing the 500 m deep and 5 km wide fjord, Bjørnafjorden, located in Norway. Several concepts have been developed on behalf of the ... -
Dynamic Response of Suspension Bridge with floating Towers
Halden, Sondre (Master thesis, 2016)The Norwegian Public Road Administration has been investigating the possibilities of crossing the fjords on the west coast of Norway for the coastal highway E39 project. For the 5 km wide Bjørnafjorden a floating three ... -
Dynamic Response of Suspension Bridge with Floating Towers
Gong, Shun Wei (Master thesis, 2016)The Norwegian Public Road Administration has been investigating the possibilities ofcrossing the fjords on the west coast of Norway for the coastal highway E39 project.For the 5 km wide Bjørnafjorden ...