Search for dissertations about: "Railway Systems"
Showing result 1 - 5 of 155 swedish dissertations containing the words Railway Systems.
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1. Cybersecurity in Railway : A Framework for Improvement of Digital Asset Security
Abstract : Digitalisation changes operation and maintenance in railways. Emerging digital technologies facilitate implementation of enhanced eMaintenance solutions through utilisation of distributed computing and artificial intelligence. READ MORE
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2. EMC in railway systems : measurements, modeling and analysis
Abstract : The subject of this study and resulting thesis was to investigate the electromagnetic compatibility (EMC) problems in the multi-electrical signaling circuitry along a railway track. These signaling systems have been expanding over time from buried multi-wired electrical copper cables to optical fiber cables, sometimes located parallel to the contact line in the catenaries. READ MORE
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3. Simulation Studies for Improved Efficiency in Road and Rail Freight Transports
Abstract : The demand for road and rail freight transport continues to grow with the expanding economy, while the climate crisis requires reduction in greenhouse gas emissions. Therefore, tools and solutions for reducing fossil fuel use and enabling more efficient use of infrastructure are needed. READ MORE
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4. Railway capacity analysis : Methods for simulation and evaluation of timetables, delays and infrastructure
Abstract : In this thesis the symptoms and underlying behaviour of congestion on railways are analysed and discussed. As well as in many other countries, Sweden faces increasing demand for transportation. To meet this new demand, railways play an important role. READ MORE
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5. Enablement of digital twins for railway overhead catenary system
Abstract : Railway has the potential to become one of the most sustainable mediums for passenger and freight transport. This is possible by continuous updates to the asset management regime supporting Prognostics and Health Management (PHM). Railway tracks and catenaries are linear assets, and their length plays a vital role in maintenance. READ MORE