Essays about: "high-speed trains"

Showing result 16 - 20 of 42 essays containing the words high-speed trains.

  1. 16. An MMC-based topology with Dual-Active-Bridge power channels for load balancing in 50 Hz-railway applications

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Andreas Zafeiropoluos; [2017]
    Keywords : Power electronics; STATCOM; MMC; power channel; power quality; negativesequence compensation; high-speed trains;

    Abstract : The purpose of this thesis report is to investigate challenges related to railway electrification. Inac-railway systems, trains are most often single-phase loads, which can create significantunbalances in the grid, when fed directly from two adjacent phases. READ MORE

  3. 17. Comparison of ballasted and ballastless bridges for high speed trains

    University essay from KTH/Bro- och stålbyggnad

    Author : David Matos Sánchez; Maša Nikolic; [2016]
    Keywords : High-speed train; concrete bridge; beam bridge; dynamic; 3D dynamic;

    Abstract : The purpose of the project is to investigate the difference in performance between ballasted and ballastless railway bridges dedicated to high speed trains by taking into account both static and dynamic requirements. The main questions are: a) whether choosing a ballastless bridge results in a more slender section due to the lower self-weight b) if the design of bridges for high speed trains is governed by the static or by the dynamic requirements. READ MORE

  4. 18. Soil-structure interaction of end-frames for high-speed railway bridges

    University essay from KTH/Bro- och stålbyggnad

    Author : Johan Östlund; [2016]
    Keywords : Dynamics; SSI; Soil-structure interaction; Soil-bridge interaction; HSR; High-speed railway; Impedance; Receptance; End-frame bridge; Dynamik; SSI; Jord-struktur interaktion; Jord-bro interaktion; HSR; Höghastighetsbana; Höghastighetståg; Impedans; Receptans; Ändskärmsbro;

    Abstract : In this thesis, the influence of soil-structure interaction (SSI) of end-frame bridges for high-speed railways was studied. Impedance functions, representing the SSI, was calculated and analyzed. The impedance functions were applied to end-frame bridge models which were analyzed for use in HSR. READ MORE

  5. 19. The effect of increasing train lengths on the fatigue lifespan of a bridge.

    University essay from KTH/Bro- och stålbyggnad

    Author : Franck Monballiu; Wouter Schils; [2016]
    Keywords : Finite element model updating; sensitivity analysis; objective function; dynamic analysis; Banafjäl bridge; fatigue lifetime; high-speed bridge;

    Abstract : More and more pressure is exerted on railway infrastructure due to an increasing transportation demand and population density. Instead of expanding the net, a possible solution could lie in the enlargement of the capacity by operating longer trains rather than more short ones. READ MORE

  6. 20. Night train

    University essay from Lunds universitet/Industridesign

    Author : Fredrik Burman; [2015]
    Keywords : Gröna tåget; high-speed trains; fast trains; locomotive; tilting; EMU; Intercity; Technology and Engineering;

    Abstract : .... READ MORE