Search for dissertations about: "optimization railway"
Showing result 1 - 5 of 36 swedish dissertations containing the words optimization railway.
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1. Structural-Acoustic Optimization of Sandwich Panels
Abstract : .... READ MORE
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2. A Simulation-Optimization Approach for Improved Robustness of Railway Timetables
Abstract : The timetable is an essential part for the operations of railway traffic, and its quality is considered to have large impact on capacity utilization and reliability of the transport mode. The process of generating a timetable is most often a manual task with limited computer aid, and is known to be a complex planning problem due to inter-train dependencies. READ MORE
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3. Towards Optimization of Railway Turnouts
Abstract : The turnout (Switch & Crossing) is a vital component in railway networks as it provides flexibility to traffic operation by allowing trains to switch between tracks. The flexibility comes at a cost as the common lack of a transition curve in the diverging route together with the variation and discontinuities in rail profiles result in higher rail degradation rates than in regular track. READ MORE
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4. Multi-objective optimization of railway bogie suspension damping
Abstract : In this thesis multi-objective optimization is used to find Pareto fronts showing the set of optimized damping parameters of primary and secondary bogie suspensions. Special interests are put on requirements to enhance safety and comfort of a railway vehicle. READ MORE
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5. Contributions to dual subgradient optimization and maintenance scheduling
Abstract : This thesis analyses two topics within the area of mathematical optimization; dual subgradient methods and maintenance optimization. The first two papers consider dual subgradient methods, and the third paper considers maintenance optimization. READ MORE