Blar i NTNU Open på forfatter "Frøseth, Gunnstein Thomas"
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Numerical Analysis of the Dynamic Response of Existing Railway Bridges.
Frøseth, Gunnstein Thomas (Master thesis, 2014)The railway is an important part of the infrastructure in todays society and there is a need to increase the capacity and verify the existing railway network to face the challenges of tomorrow. To meet todays and the future ... -
Operational Displacement Estimations of Railway Catenary Systems by Photogrammetry and the Integration of Acceleration Time Series
Frøseth, Gunnstein Thomas; Nåvik, Petter Juell; Rønnquist, Anders (Journal article, 2020) -
A robust line-tracking photogrammetry method for uplift measurements of railway catenary systems in noisy backgrounds
Jiang, Tengjiao; Frøseth, Gunnstein Thomas; Rønnquist, Anders; Fagerholt, Egil (Peer reviewed; Journal article, 2020)For electrical railways, contact wires are used to ensure stable and continuous power supply to trains operating on the infrastructure. One crucial design parameter used to control the catenary design is the vertical ... -
Train Classification Using a Weigh-in-Motion System and Associated Algorithms to Determine Fatigue Loads
Zakharenko, Maria; Frøseth, Gunnstein Thomas; Rønnquist, Anders (Peer reviewed; Journal article, 2022)This paper presents a methodology for classifying train passages into different types with a weigh-in-motion (WIM) system to allow the calibration of railway fatigue load models and identify individual vehicles from the ... -
Updating of numerical models for enhanced dynamic assessment of existing structures - Analysing parameters for model updating of a riveted steel railway bridge, based on the sensitivity method
Akhtar, Annum Iftikhar; Abnar, Babæk (Master thesis, 2016)Updating a numerical model of a real structure is an important tool to enhance an existing model, such that it represents the structure more accurately. To assess the current state of a structure, and predict the remaining ...