Search for dissertations about: "Freight wagons"

Showing result 1 - 5 of 8 swedish dissertations containing the words Freight wagons.

  1. 1. Dynamic Vehicle-Track Interaction of European Standard Freight Wagons with Link Suspension

    University dissertation from Stockholm : KTH

    Author : Per-Anders Jönsson; KTH.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railway; freight wagon; running gear; link suspension; laboratory test; ; stiffness; dry friction; hysteresis; simulation; vehicle-track interaction; multibody; simulation; MBS; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract : The link suspension is the most prevailing suspension system for freight wagons in Central and Western Europe. The system design is simple and has existed for more than 100 years. However, still its characteristics are not fully understood. READ MORE

  2. 2. Modelling and laboratory investigations on freight wagon link suspensions with respect to vehicle-track dynamic interaction

    University dissertation from Stockholm : KTH

    Author : Per-Anders Jönsson; KTH.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railway; freight wagon; running gear; link suspension; laboratory test; ; TECHNOLOGY Engineering mechanics Other engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik Övrig teknisk mekanik;

    Abstract : The link suspension is the most prevailing suspension system for freight wagons in central and western Europe. The system design is simple and has existed for more than 100 years. However, still its characteristics are not fully understood. READ MORE

  3. 3. Curving performance and nonlinear dynamic behaviour of freight cars with three-piece bogies

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Ansel Berghuvud; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Aided Design; Datorstödd maskinkonstruktion;

    Abstract : This thesis considers modelling and simulation of the dynamic interaction between freight cars and railway track. The aim of the work is to study and enhance the knowledge and understanding of the nonlinear interaction for different heavy haul freight vehicle concepts of ore wagons applied at Malmbanan/Ofotbanen in northern Sweden and Norway. READ MORE

  4. 4. An Investigation of the Iron-Ore Wheel Damages using Vehicle Dynamics Simulation

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Saeed Hossein Nia; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; three-piece bogie; wear; RCF; prediction; traction; braking; heavy haul; simulation; Farkostteknik; Vehicle and Maritime Engineering;

    Abstract : Maintenance cost is one of the important issues in railway heavy haul operations. For the iron-ore company LKAB, these costs are mainly associated with the reprofiling and changing of the wheels of the locomotives and wagons. The main reason for the wheel damages is usually surface initiated rolling contact fatigue (RCF) on the wheels. READ MORE

  5. 5. Tread Braking of Railway Wheels - Noise-related Tread Roughness and Dimensioning Wheel Temperatures

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Tore V Vernersson; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rail chill; block material; temperature; heat partitioning; railway; corrugation; thermoelastic analysis; tread braking; noise;

    Abstract : Block braking is a commonly used braking system for freight wagons and other types of railway vehicles. One or several brake blocks are pressed against the tread (running surface) of the wheel, which is also in rolling contact with the rail. READ MORE