Search for dissertations about: "axle"
Showing result 1 - 5 of 86 swedish dissertations containing the word axle.
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1. Raising allowable axle loads on railway bridges using simulation and field data
Abstract : .... READ MORE
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2. Mechatronic aspects of an innovative two-axle railway vehicle
Abstract : Within the Shift2Rail research program the goals for a sustainable growth of the railway sector are set. Among these are substantial reduction of Life Cycle Costs, improved reliability and energy efficiency, the reductionof noise emissions, and the achievement of full interoperability of the rolling stock. READ MORE
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3. Influence of wheel tread damage on wheelset and track loading – Field tests and numerical simulations
Abstract : Wheel tread damage leading to high magnitudes of vertical wheel–rail contact forces is a major cause of train delays in the Swedish railway network, in particular during the coldest months of the year. According to regulations, vehicles generating contact forces exceeding the limit value for allowed wheel–rail impact loads must be taken out of service for wheel maintenance. READ MORE
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4. Influence of railway wheel tread damage and track properties on wheelset durability – Field tests and numerical simulations
Abstract : Wheel tread damage leading to high magnitudes of vertical wheel–rail contact forces is a major cause of train delays in the Swedish railway network, particularly during the coldest months of the year. According to regulations, vehicles generating wheel–rail impact loads exceeding the limit values must be taken out of service for wheel maintenance. READ MORE
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5. Mechanistic-Empirical Modelling of Flexible Pavement Performance : Verifications Using APT Measurements
Abstract : Mechanistic-Empirical (M-E) pavement design procedures are composed of a reliable response model to estimate the state of stress in the pavement and distress models in order to predict the different types of pavement distresses due to the prevailing traffic and environmental conditions. One of the main objectives of this study was to develop a response model based on multilayer elastic theory (MLET) with improved computational performance by optimizing the time consuming parts of the MLET processes. READ MORE