Blar i Institutt for maskinteknikk og produksjon på forfatter "Nawaz, Muhammad Umer"
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Estimation of Running Resistance in Train Tunnels
Nawaz, Muhammad Umer (Master thesis, 2015)The research is initiated with the aim to make the tunnel resistance estimations more accurate. Tunnel resistance is measured to calculate running times and energy consumption. From previous studies performed by Norges ... -
Using operational data to estimate the running resistance of trains. Estimation of the resistance in a set of Norwegian tunnels
Halvor Schrøder, Hansen; Nawaz, Muhammad Umer; Olsson, Nils (Journal article, 2017)Two approaches to estimate the running resistance from operational data have been studied: A direct approach based on a measured/estimated acceleration to obtain a resistance time-series, and a velocity-fitting approach ...