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首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >Modelling of the plastification near the rough surface of a rail by the wheel-rail contact
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Modelling of the plastification near the rough surface of a rail by the wheel-rail contact

机译：通过轮轨接触对钢轨粗糙表面附近的塑化进行建模

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摘要

Rail surfaces exhibit a certain surface roughness from production to millions of overrollings. This surface roughness cannot be neglected when the mechanisms of sliding-rolling wear are investigated. A two dimensional finite element study is carried out to investigate a small part (micro-region) of a wheel pressed onto a rail. The wheel is assumed to be smooth or is given a certain surface roughness, and the rail is given a measured surface roughness. The wheel is loaded according to the average value of the contact pressure and its time history over the area which is found in a three-dimensional finite element analysis of a wheel-rail contact. The present study will aid understanding the wear mechanisms acting during wheel-rail contact.
机译：从生产到成千上万次滚动，导轨表面都具有一定的表面粗糙度。当研究滑动-滚动磨损的机理时，不能忽略该表面粗糙度。进行了二维有限元研究，以研究压在轨道上的车轮的一小部分（微观区域）。假定车轮是光滑的或具有一定的表面粗糙度，而轨道则具有测量的表面粗糙度。根据接触压力的平均值及其在整个区域内的时间历程来加载车轮，这在轮轨接触的三维有限元分析中可以找到。本研究将有助于理解轮轨接触过程中的磨损机理。

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