Search for dissertations about: "sleepers"

Showing result 1 - 5 of 27 swedish dissertations containing the word sleepers.

  2. 1. Structural Behaviour of Concrete Railway Sleepers

    Author : Rikard Gustavson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; concrete; finite element analysis; three-wire strand; sleeper; bond; strand; pull-through tests; steel encased; push-in tests; bond mechanism; numerical bond model; dynamic loads;

    Abstract : The railway concrete sleeper is an important part of the railway track structure. The sleeper member requires substantial engineering skills during the design and manufacturing process in order to fulfil the requirements set by modern train traffic. READ MORE

  4. 2. Dynamic train/track interaction : hanging sleepers, track stiffness variations and track settlement

    Author : Andreas Lundqvist; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Trains have been operating on ballasted tracks for over 150 years. During this time demands from the railway organisations and from the industry to increase axle loads and train speeds on the existing railway lines have increased. The reasons for this are both economial and environmental. READ MORE

  5. 3. Static and dynamic finite element analyses of concrete sleepers

    Author : Rikard Gustavson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE

  6. 4. Pattern recognition for automating condition monitoring of wooden railway sleepers

    Author : Siril Yella; Högskolan Dalarna; []
    Keywords : Automatisk inspektion av järnvägsslipers;

    Abstract : The thesis aims to investigate the current state of railway sleeper inspection and proposes automatic testing procedures based on pattern recognition for future inspections concerning the condition of the sleeper. Wooden railway sleeper inspections in Sweden are currently done by hand. READ MORE

  7. 5. On the Modelling of Train Induced Ground Vibrations with Analytical Methods

    Author : Anders Karlström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ground vibrations; train; wave propagation; dynamic flexibility; trench; railway track; vibration isolation; wave barrier; soil-structure interaction;

    Abstract : A novel analytical approach to model train induced ground vibrations is proposed. Integral transform solutions are combined with series solutions to obtain fast numericalalgorithms, where a particular designed boundary condition for finite regions is seen to enable the solution procedure. READ MORE