Sökning: "instrumented wheelset"

Hittade 5 avhandlingar innehållade orden instrumented wheelset.

  1. 1. Influence of wheel tread damage on wheelset and track loading – Field tests and numerical simulations

    Författare :Michele Maglio; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; axle stress; instrumented wheelset; impact loads; dynamic wheel–rail interaction; wheelset maintenance; wheel tread damage;

    Sammanfattning : Wheel tread damage leading to high magnitudes of vertical wheel–rail contact forces is a major cause of train delays in the Swedish railway network, in particular during the coldest months of the year. According to regulations, vehicles generating contact forces exceeding the limit value for allowed wheel–rail impact loads must be taken out of service for wheel maintenance. LÄS MER

  2. 2. Railway Wheelsets: Theory, Experiments and Design Considering Temperatures, Stresses and Deformations as Induced by Braking Loads and Contact Forces

    Författare :Mikael Fermér; Chalmers University of Technology; []
    Nyckelord :;

    Sammanfattning : Railway wheelset components exposed to braking loads and contact forces have been studied. The work has been performed in close cooperation with the Swedish wheelset manufacturer ABB SURA Traction AB, and it has resulted in one brake disc prototype and two different wheel prototypes. LÄS MER

  3. 3. Train---Track Interaction. Coupling of Moving and Stationary Dynamic Systems: Theoretical and Experimental Analysis of Railway Structures Considering Wheel and Track Imperfections

    Författare :Jens Nielsen; Chalmers University of Technology; []
    Nyckelord :;

    Sammanfattning : A general and well-structured method is advanced for analysis of the vertical dynamic interaction between a train and its track. The trains studied are modelled as linear or non-linear discrete mass-spring-damper systems. LÄS MER

  4. 4. Dynamic train-turnout interaction: mathematical modelling numerical simulation and field testing

    Författare :Elias Kassa Gebretsadik; Chalmers University of Technology; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SRA - Transport; SRA - Transport;

    Sammanfattning : Two models for simulation of dynamic interaction between train and turnout are developed. The first one is derived using a commercial software for dynamics of multi-body systems. LÄS MER

  5. 5. Dynamic Train-Turnout Interaction – Mathematical Modelling, Numerical Simulation and Field Testing

    Författare :Elias Kassa; Chalmers University of Technology; []
    Nyckelord :contact forces; Karhunen–Loève expansion; dynamic train–turnout interaction; field test; wheel–rail contact geometry; stochastic analysis; switches and crossings;

    Sammanfattning : Two models for simulation of dynamic interaction between train and turnout are developed. The first one is derived using a commercial software for dynamics of multi-body systems. LÄS MER