Essays about: "High-speed railway"

Showing result 11 - 15 of 64 essays containing the words High-speed railway.

  1. 11. A study of the effects of winterclimate and atmospheric icing onhigh-speed passenger trains

    University essay from Umeå universitet/Institutionen för matematik och matematisk statistik

    Author : Markus Granlöf; [2020]
    Keywords : Survival analysis; continuous Markov model; cumulative delay; highspeed train; weather; atmospheric icing;

    Abstract : Harsh winter climate causes various problems for both the public andprivate sector in Sweden, especially in the northern part and the railway industryis no exception. This master thesis project covers an investigation of the eects ofthe winter climate and a phenomena called atmospheric icing on the performance ofthe train in a region called the Botnia-Atlantica region. READ MORE

  3. 12. A 3D Sliding Bearing Finite Element Based on The Bouc-Wen Hysteretic Model : Mathematical modelling and numerical implementation

    University essay from KTH/Bro- och stålbyggnad

    Author : Sicong Wei; [2020]
    Keywords : high-speed railway; nonlinear dynamics; bridge bearings; friction; hysteresis; secondary development; damping;

    Abstract : Bridge bearing is an essential component with the function of connecting the superstructure and substructure of the bridge, transmitting load and providing movability to the superstructure. Under dynamic conditions, the internal friction of bridge bearing dissipates the vibration energy and therefore reduces the dynamic response of the bridge. READ MORE

  4. 13. Maglev deployment in winter climate

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Axel Thorstrand; [2020]
    Keywords : ;

    Abstract : As of year 2020, maglev train systems are not in service in areas with harsh winter climate. Compared to conventional railway, the technology is relatively new and untested in conditions of low temperatures, icing and snow. READ MORE

  5. 14. Soil-Structure Interaction Analysis of Portal Frame Railway Bridges : Numerical Analysis of Two Case Study Bridges

    University essay from KTH/Bro- och stålbyggnad

    Author : Nils Sandqvist; Marko Milicevic; [2020]
    Keywords : Soil-structure Interaction; Portal Frame Bridge; Dynamic Analysis; Perfectly Matched Layer; Train Passage Analysis; Railway Bridge; High Speed Train v;

    Abstract : This thesis concerns dynamic Soil-Structure Interaction (SSI) analysis of portal framerailway bridges. Dynamic problems are common for bridges used for high speedrailway traffic. The passing trains induce harmonic loads on the bridges causingvibration amplitudes that may cause damage to the bridge structures and userdiscomfort. READ MORE

  6. 15. Machine Learning – Based Dynamic Response Prediction of High – Speed Railway Bridges

    University essay from KTH/Bro- och stålbyggnad

    Author : Jin Xu; [2020]
    Keywords : High-Speed Railway Bridges; Bridge Dynamics; Artificial Neural Networks ANNs ; Back-Propagation Neural Networks BPNNs .;

    Abstract : Targeting heavier freights and transporting passengers with higher speeds became the strategic railway development during the past decades significantly increasing interests on railway networks. Among different components of a railway network, bridges constitute a major portion imposing considerable construction and maintenance costs. READ MORE