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the 3-d finite-element analysis of press fitting process in railway wheel-set
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نویسنده
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soleimani h. ,sarabandi s. ,mahmoudi s.
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منبع
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scientia iranica - 2019 - دوره : 26 - شماره : 1-B - صفحه:367 -374
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چکیده
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Variations in the loadings of rolling contact components lead to a change in contact forces between surfaces. these forces are the main cause of rolling contact damages such as fatigue. residual stresses are a major issue in railway wheel structures and it is appropriate to reduce such stresses. the aim of this paper is to estimate residual stresses in railway wheel due to hub to rim and axle to hub fitting process. a nonlinear three-dimensional model of stress is applied for analyzing stress field during press fitting process. an elastic-plastic finite element model is developed to model variable thermal loading in railway wheel. finally, results of three dimensional finite element analysis showed good agreement with field observations.
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کلیدواژه
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residual stress ,thermal loading ,press fitting process ,finite element ,railway wheel
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آدرس
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ferdowsi university of mashhad, faculty of engineering, department of mechanical engineering, iran, universitat politecnica de catalunya, institute of industrial and control engineering, spain, islamic azad university, najafabad branch, department of mechanical engineering, iran
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پست الکترونیکی
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s.mahmoudiberam@gmail.com
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Authors
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