rail grinding effects:

Effects of abrasive material and hardness of grinding

2020year8month15day · In order to effectively simulate the rail grinding process, in this study, the rail specimens were directly cut from new U75V rail heads with the length of 800 mm, as

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Analysis on curve negotiating ability of rail grinder in

2022year7month8day · If rail grinder itself is unstable, it may have a poor impact on grinding effect. In extreme cases, it may lead to increasement of rail irregularity in some operation

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Experimental investigation on material removal

2020year3month1day · These research studies mentioned above comprehensively revealed the effects of grinding on the wheel and rail contact, and provided a preliminary

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钢轨打磨机理研究进展及展望

2019year3month7day · Research on the Effect of Rail Grinding Parameters on Grinding Quantity and Grinding Mode [D]. Beijing: Beijing Jiaotong University, 2014. [49] STEENBERGEN

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Rail Grinding Types And Practices | AGICO Rail

2020year10month30day · The economic effect of rail grinding. Preventive grinding can prolong the service life of railroad track. Rails ground regularly as planned can extend the life of 5-8

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(PDF) The impact of railway grinding on noise levels and

The acoustical effects of the rail grinding along the investigated railway line are described in detail by Liepert et al. [8]. To summarize: Emission noise levels L Aeq for daytime and

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Regular grinding is the key to long rail life

2007year7month30day · The grinding heads are specially designed to grind points, stock rails, frogs and close to guard rails. Grinding is effective from 0-75 degrees gauge side and 0-45 degrees field side of the rail. A range of

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Grinding and milling are essential to rail quality

2009year1month23day · Rail grinding helps to prevent the dangerous build-up of rolling contact fatigue, and also reduces running noise for line side communities. James Abbott, Technical Editor for Global Railway Review,

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Experimental investigation on material removal

2020year3month1day · These research studies mentioned above comprehensively revealed the effects of grinding on the wheel and rail contact, and provided a preliminary understanding of the rail grinding [[10], [11], [12]].Many research studies were also conducted to reveal the possible adverse effects of grinding process on the rail material [14, 15].However, it is

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Effect of rail corrugation on metro interior noise and its

2018year1month15day · There is no rail grinding standard based on interior noise limits for metro trains running on slab tracks in tunnels, which covers the vast majority of situations in China. Therefore, there is an urgent need to understand the effects of rail corrugation on interior noise for metro trains running on slab tracks in tunnels.

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Rolling contact fatigue in relation to rail grinding

2016year6month15day · This yields ‘pre-fatigue’ of the rail. 2) On heat-treated grades, portions of FIM accumulate at groove edges during the grinding process. Under train operation, they are pressed into the deeper pearlitic matrix, in combination with severe plastic deformation as a result of tangential wheel–rail contact stresses.

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Rail Corrugation of High-Speed Railway Induced by Rail

2021year1month11day · Rail corrugation is a common railway defect that involves diverse and complex factors. Rail grinding is also the most commonly used method to address corrugations. Through numerous irregularity tests and one-third octave frequency spectrum analyses, this study determined the characteristics and development process for rail

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Temperature field and material response as a function of

2021year8month1day · The grinding wheels with various diameters might be utilized during the field rail grinding procedures. However, the effect of grinding wheel size on the grinding temperature was barely studied, which is especially complicated during face grinding because the influence of the inner diameter and the outer diameter should be considered

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Application of grinding to reduce rail side wear in straight

2018year5month15day · Rail grinding is a typical maintenance procedure for railways in which an abrasive wheel is used to restore the rail profile while eliminating defects such as corrugation, fatigue cracks and detachment marks. ... Based on the proposed model, the non-uniform wear evolution of a 100 m-long rail and its effect on wheel-rail dynamic

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Influence of rail grinding process parameters on rail

2016year3month1day · A three-dimensional finite element model of rail grinding was established to explore the effects of grinding passes and grinding direction on the material removal behaviour of grinding rails ...

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不同形式的道岔钢轨打磨对高速列车动力学性能影响

2019year7month15day · Keyword: high-speed railway; turnout rail grinding; dynamic simulation; wheel-rail wear; equivalent conicity 文章图片 随着我国高铁飞速发展, 部分高速道岔钢轨出现了鱼鳞纹、掉块和侧面磨耗等一系列问题 [ 1 ] , 严重影响了高速道岔的使用寿命及轨道平顺性 [

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Effects of abrasive material and hardness of grinding

2020year5month1day · Metallographic transformation and plastic deformation can be generated on the ground rail surface under the coupling effect of grinding heat and grinding force during the grinding process, which ...

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Rail Surface Quality Improvements from Utilising a Novel

2023year3month23day · This verified the undesirable effect of conventional grinding on the rail material, as it was revealed that White Etching Layer (WEL) can be formed out of the grinding process which can eventually lead to the initiation of cracks and negatively affect the rail performance. Additional analysis of field ground specimens was done on a Full

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Predictive modeling of the rail grinding process using a

2015year9month30day · Satoh Y, Iwafuchi K. Effect of rail grinding on rolling contact fatigue in railway rail used in conventional line in Japan. Wear 2008; 265(9–10): 1342–1348. Crossref. Google Scholar. 27. Scroba P, Magel E, Prahl F. Getting the most from rail grinding. Railway Track Struct 2003; 99(12): 30–33.

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不同形式的道岔钢轨打磨对高速列车动力学性能影响

2019year7month15day · Keyword: high-speed railway; turnout rail grinding; dynamic simulation; wheel-rail wear; equivalent conicity 文章图片 随着我国高铁飞速发展, 部分高速道岔钢轨出现了鱼鳞纹、掉块和侧面磨耗等一系列问题 [ 1 ] , 严重影响了高速道岔的使用寿命及轨道平顺性 [

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Microscopic contact pressure and material removal

2020year6month26day · The rail grinding technologies have always been extensively explored. Various grinding technologies, including the face grinding with abrasive wheel, 6–11 the peripheral grinding with abrasive wheel, 12,13 the milling with combined cutter blades 14 and the high-speed grinding with unpowered abrasive wheel, 15 have been applied in

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Investigating the influence of rail grinding on stability,

2023year2month9day · Nonetheless, the working mechanism of rail grinding has not been investigated theoretically. This study develops flexible car body and human body models based on the rigid-flexible coupled method to systematically study the effects of wheel-rail wear and rail grinding on passenger ride comfort. Case studies show that the proposed

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Improvement of the hydraulic system in a rail grinder

2023year2month22day · Rail grinding is an important method for metro rail maintenance. The rail grinding process is a mechanical, electric, and hydraulic coupling process built on vehicle-track relationship. A low grinding power may result in a low grinding effect, whereas a high grinding power may cause a white layer and damage to the rail.

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Efficiency of the Production Process of Grinding Rails

2020year1month31day · The rail grinding technology is primarily aimed at removing defects that occur on the rolling surface. Such defects include wave-like wear-out and slippage, cracks and chipping, mechanical damage, crushing and delamination of the metal. ... The analysis of early studies on the effect of grinding frequency on the occurrence and development of ...

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Regular grinding is the key to long rail life

2007year7month30day · The grinding heads are specially designed to grind points, stock rails, frogs and close to guard rails. Grinding is effective from 0-75 degrees gauge side and 0-45 degrees field side of the rail. A range of

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Wear Problems of High-Speed Wheel/Rail Systems:

2020year11month11day · Abstract. Wear problems of wheel/rail systems occurring on the Chinese high-speed railway network in the last decade are summarized and explained together with the corresponding experience of treating them. Focus is placed on uneven wear because even wear is not an urgent issue due to its very low wear rate for the Chinese high-speed

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Noise and vibration | UIC - International union

2 天之前 · In addition, it will consider the effects of noise mitigation methods on vibration and vice versa. The Noise and Vibration Sector meeting is held twice in a year. For further information about the UIC Noise and Vibration

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Rail Surface Quality Improvements from Utilising a Novel

2023year3month23day · This verified the undesirable effect of conventional grinding on the rail material, as it was revealed that White Etching Layer (WEL) can be formed out of the grinding process which can eventually lead to the initiation of cracks and negatively affect the rail performance. Additional analysis of field ground specimens was done on a Full

Read More