Search for dissertations about: "tread brakes"

Showing result 1 - 5 of 8 swedish dissertations containing the words tread brakes.

  2. 1. Mechanical braking systems for trains: A study of temperatures, fatigue and wear by experiments and simulations

    Author : Mandeep Singh Walia; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tread brakes; experiments; temperatures; disc brakes; wear; Railway braking; simulations; fatigue;

    Abstract : Increased demand for shorter travel times, higher axle loads, increased volumes and increased punctuality of railway traffic calls for a better design and management of the railway subsystems. The present thesis deals with aspects of mechanical friction brakes, in the form of tread brakes and disc brakes. READ MORE

  4. 2. Thermomechanical behaviour of tread braked wheels

    Author : Eric Landström Voortman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermomechanical analysis; high temperature testing; thermal analysis; full-scale brake rig testing; tread braking; Railway wheels; finite element analysis;

    Abstract : Tread brakes, also known as block brakes, are a type of friction brakes commonly used in the railway industry. They are a low-cost and low-maintenance solution compared to more complicated systems such as disc brakes or electrodynamic brakes. READ MORE

  5. 3. Railway tread braking temperatures - Numerical simulation and experimental studies

    Author : Shahab Teimourimanesh; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railway tread braking; finite element analysis; railway wheels; rail chill; hot spots; frictional heating; heat partitioning; metro; field experiment; rig experiment;

    Abstract : Tread (block) braking is still one of the most common braking systems on railway vehicles. The action is carried out by pressing brake blocks against the tread of a wheel, which is also in rolling contact with the rail. READ MORE

  6. 4. Towards enhanced mechanical braking systems for trains. Thermomechanical capacity of wheel treads at stop braking

    Author : Mandeep Singh Walia; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; finite element analysis; full-scale brake rig testing; tread braking; rolling contact fatigue; high temperature fatigue; Railway wheels; stop braking;

    Abstract : Modern trains are equipped with different braking systems, between which the braking effort can be distributed. Among these, tread braking is still the most common system for friction braking. Tread brake systems are cheap and robust. READ MORE

  7. 5. Combined thermal and mechanical loading of railway wheel treads. A numerical study of material response and cracking under braking conditions

    Author : Sara Caprioli; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling Contact Fatigue; Ratchetting; Tread braking; Plastic deformation; Thermal cracking;

    Abstract : The scope of the thesis is prediction of the material response owing to combined thermal and mechanical loading of a railway wheel tread. The long-term objective is to improve models for prediction of surface-initiated Rolling Contact Fatigue (RCF) under the combined effect of mechanical loading due to rolling (and sliding) contact and thermal loading due to braking and/or wheel--rail friction. READ MORE