Modelling and simulation of the grinding force in rail grinding that considers the swing angle of the grinding stone

Zhou, Kun; Ding, Haohao; Zhang, S.Y.; Guo, Jun; Liu, Q.Y.; Wang, W.J.

doi:10.1016/j.triboint.2019.05.012

Cited by 45 publications

(10 citation statements)

References 27 publications

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“…In machining process, the cutting forces acting on the spindle end include the main cutting force along the tangential direction, the feed force along the radial direction and the cutting force along the axial direction. The amplitude of axial cutting force is much larger than the other two cutting forces [34][35][36]. Thus, the large-size hydrostatic thrust bearing is capable of carrying the large axial cutting force, meanwhile, the small-diameter rolling bearings are suitable for supporting the other two radial small-amplitude forces.…”

Section: The Face-grinding Spindle With the Rolling Ball Bearingsmentioning

confidence: 99%

Thermal behavior of an improved face-grinding spindle: water-lubricated hydrostatic thrust bearing decreases temperature rise and increases axial stiffness

Jiang

Lin

Liu

2022

Int J Adv Manuf Technol

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Axial thermal deformation and axial stiffness are main technical indicators to affect manufacturing accuracy of face-grinding spindle. However, the face-grinding spindle supported by rolling bearings lubricated with grease has a relative disadvantage in respect of temperature rise, axial stiffness and rotational accuracy. To overcome this issue, this study proposes a novel face-grinding spindle supported by a combined bearings, which include a water-lubricated hydrostatic thrust bearing and two rolling bearings with oil-air lubrication system. The thermal model for the proposed face-grinding spindle is established and the spindle thermal behavior is analyzed systematically. An experiment prototype of the face-grinding spindle is developed, and temperature rise of the spindle is detected to verify the thermal model. The result shows that the temperature rise of the proposed spindle can be decreased by the using of the water-lubricated hydrostatic thrust bearing. A comparative study between the two types of spindles shows that the proposed face-grinding spindle with the combined support has technical advantage of low temperature rise, large axial stiffness and low rotation accuracy, etc.

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Section: The Face-grinding Spindle With the Rolling Ball Bearingsmentioning

confidence: 99%

Thermal behavior of an improved face-grinding spindle: water-lubricated hydrostatic thrust bearing decreases temperature rise and increases axial stiffness

Jiang

Lin

Liu

2022

Int J Adv Manuf Technol

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“…Figure 5(c) shows that the thermo-mechanical coupling stress decreases with the feed speed. With the feed speed increasing, the grinding force increases, 14 but the grinding temperature decreases. The results indicate that when the feed speed is between 8 and 20 km/h, the effect of thermo action (i.e.…”

Section: Thermo-mechanical Coupling Stress Of Rail Ground By a Single Grinding Wheelmentioning

confidence: 99%

“…It was found that the grinding force declined with the grinding passes. Zhou et al 14 explored the grinding force through rail grinding tests and numerical analysis. It was found that the grinding force decreased with rotational speed of grinding wheel and increased with the forward speed of grinding train.…”

Section: Influence Of Grinding Parametersmentioning

confidence: 99%

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Simulation research on temperature field and stress field during rail grinding

Huang

Ding

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part F:

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The rail grinding process generates a large amount of heat, which could lead to heat damage on the ground rails. But, the whole temperature field of rail ground by the grinding train has not been explored in detail. In the present study, finite element models of a rail and grinding wheel were established to simulate the rail grinding process. The temperature field and the thermo-mechanical coupling stress during rail grinding, and the residual stress after grinding were studied. Furthermore, through simplifying grinding wheels into heat sources, the temperature field of rail ground by a whole grinding train was investigated as well. The results indicated that the grinding temperature and the residual stress increased with the grinding depth and rotational speed, but decreased with the feed speed and radius of rail head. The thermo-mechanical coupling stress increased with the radius of rail head and grinding depth, and decreased with the rotational speed and feed speed. When ground by the whole grinding train, the increase in the number of grinding wheels at the same grinding angle and adjacent angles could lead to a rise in temperature on the rail surface. The speeds of grinding train and the rail head radius also have an influence on the temperature. The optimal feed speed of the grinding train should be below 12 km/h for R300, 16 km/h for R80, and 18 km/h for R13. The results could be used to optimize the grinding parameters and grinding pattern in the field.

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“…The grinding process comprises some parameters such as the angle of the grinding stone, pressure, and the speed of the grinding train. Numerous studies have attempted to explain the role of rail grinding for referring [84][85][86][87][88][89]. Modern rail grinding techniques do not aim only at treating of corrugation at the rail; also, preventive measurements are the desired goals [90].…”

Section: Rail Grindingmentioning

confidence: 99%

Demiryolu yuvarlanma yüzeyi gürültüsü ve zemin titreşimi ve hat ilişkili azaltma önlemleri-güncel gelişmeler

CAN

Torun

2022

Artıbilim: Adana Alparslan Türkeş Bilim Ve Teknoloji Üniversitesi Fen Bilimleri Dergisi

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Demiryolu gürültü ve titreşim kirliliği, özellikle demiryolu hattına yakın veya yakınında yaşayanlar olmak üzere, dünya çapında milyonlarca insanı etkilemektedir. Demiryolu ulaşım modu çevre dostu bir teknoloji olarak bilinse de gürültü kirliliğine katkısı azımsanmayacak kadar az değildir. Birçok deneysel ve gözlemsel çalışma, gürültü ve titreşimin insan sağlığı üzerindeki olumsuz etkisini göstermektedir. Bu makalenin birincil amacı, başta yuvarlanma yüzeyi gürültüsü ve zemin titreşimi olmak üzere birincil kaynaklardan kaynaklanan demiryolu gürültüsünün kaynağını ve demiryolu hattı bakış açısıyla güncel demiryolu gürültüsü azaltma önlemlerinin geliştirilmesini gözden geçirmektir.

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Modelling and simulation of the grinding force in rail grinding that considers the swing angle of the grinding stone

Cited by 45 publications

References 27 publications

Thermal behavior of an improved face-grinding spindle: water-lubricated hydrostatic thrust bearing decreases temperature rise and increases axial stiffness

Thermal behavior of an improved face-grinding spindle: water-lubricated hydrostatic thrust bearing decreases temperature rise and increases axial stiffness

Simulation research on temperature field and stress field during rail grinding

Demiryolu yuvarlanma yüzeyi gürültüsü ve zemin titreşimi ve hat ilişkili azaltma önlemleri-güncel gelişmeler

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