June 1, 2017 Thesis Open Access

OUBAH ISMAIL AHMED

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  <identifier identifierType="DOI">10.20372/nadre:1353</identifier>
  <creators>
    <creator>
      <creatorName>OUBAH ISMAIL AHMED</creatorName>
    </creator>
  </creators>
  <titles>
    <title>A Thesis`s progress submitted to the School of Graduate Studies of Addis Ababa University in partial fulfillment of the requirements for the Degree of Masters of Science in Railway Mechanical Engineering</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2017</publicationYear>
  <dates>
    <date dateType="Issued">2017-06-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Thesis</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/1353</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre:1352</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/aau</relatedIdentifier>
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  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Wheel and rail is one of the most important material used to support and guide rail vehicle safely&lt;br&gt;
and smoothly. Since wheel and rail suffers from various interacting mechanical and thermal&lt;br&gt;
forces, friction modifiers, various contaminants and environmental atmosphere, wear poses large&lt;br&gt;
Problem on wheel and rail.&lt;br&gt;
Wheel and rail wear can be result in an extensive cost for truck owner, if it is not predicated and&lt;br&gt;
prevented in an efficient way. To limit these costs, one measure is to predicate and prevent wheel&lt;br&gt;
and rail wear through wear modeling.&lt;br&gt;
The purpose of this research is to investigate the wear analysis on wheel / rail in rolling and&lt;br&gt;
sliding contact using CATIA V5 R16 software and ANSYS 16.0 Workbench. The wear of the&lt;br&gt;
wheels has been studies on stress structure as result and the analysis is done for two wheels&lt;br&gt;
having different material composition (that is Bainitic steel which is new material and R7 which&lt;br&gt;
is using by Ethiopian Light Railway Transit AALRT)&lt;br&gt;
Using stress output as input for structural analysis different stress concentration are observed&lt;br&gt;
The result obtained for the two wheels shows that wheel two has excellent hardness, strength and&lt;br&gt;
have good resistance wear&lt;br&gt;
Therefore, Bainitic steel can be applied to wheels in railway system&lt;/p&gt;</description>
  </descriptions>
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