Search for dissertations about: "Thermomechanical contact"

Showing result 1 - 5 of 18 swedish dissertations containing the words Thermomechanical contact.

  1. 1. Numerical simulation of thermomechanically coupled transient rolling contact - An arbitrary Lagrangian-Eulerian approach

    Author : Andreas Draganis; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermomechanical coupling; finite element method; transient analysis; arbitrary Lagrangian--Eulerian; rolling contact; frictional contact;

    Abstract : Numerical simulation of rolling contact serves as an important complement to laboratory and full-scale testing in the endeavour to further the understanding of related physical mechanisms, e.g. the influence of friction on the rolling motion, the thermomechanical interaction, damage phenomena and related modes of failure. READ MORE

  2. 2. Numerical simulation of thermomechanical rolling contact using an arbitrary Lagrangian-Eulerian formulation

    Author : Andreas Draganis; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rolling contact; finite element method; thermomechanical analysis; arbitrary Lagrangian--Eulerian;

    Abstract : In the endeavour to further the understanding of thermomechanical rolling contact, numerical simulations serve as an important complement to laboratory and full-scale testing. In the development of numerical simulation methods, the challenge is to enhance predictive capabilities while keeping computational efforts reasonable. READ MORE

  3. 3. Thermomechanics of block brakes

    Author : Daniel Thuresson; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction; pin model; contact mechanics; brake; thermo camera; thermomechanical; wear; freight train.; finite element; temperature measurement;

    Abstract : Friction in sliding contacts plays an important role in tribology. Applications can be found in many engineering fields  such as braking of vehicles  in which friction brakes are by far the most common. Thus, an understanding of the mechanisms involved in friction brakes has become more important as the demands on brakes increase. READ MORE

  4. 4. Thermal impact on rolling contact fatigue of railway wheels

    Author : Sara Caprioli; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Railway wheels; Thermomechanical finite element analysis; Frictional rolling contact; Thermal fracture; Tread braking; Rolling contact fatigue;

    Abstract : Rolling contact fatigue (RCF) is a very common and costly damage mechanism for rails and wheels. This thesis investigates the influence of combined thermal and mechanical loading on RCF of railway wheels on the basis of numerical predictions. READ MORE

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

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Mandeep Singh Walia; [2017]
    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