Improving tribological behaviours and noise performance of railway disc brake by grooved surface texturing

Wang, D.W.; Mo, Jiliang; Liu, M.Q.; Li, J.X.; Ouyang, Huajiang; Zhu, Minhao; Zhou, Zhijun

doi:10.1016/j.wear.2017.01.022

Cited by 39 publications

(10 citation statements)

References 44 publications

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“…Tremmel S. et al fabricated groove textures on the spheroidal graphite cast iron surface to improve the tribological performance of the sliding guideway through capturing the silica sand and found that the wear resistance of the grooves textured surface (depth, 0.40 mm; width, 1.0 mm; area density, 34%) was 4.9 times greater than that of non-textured surface under oil lubrication (Zhang et al, 2019). Wang D.W. et al investigated the influence of the grooved surface on the tribological behavior of railway brake systems and found 45°textured surface showed a better ability in entrapping wear debris than that of 90°textured surface (Wang et al, 2017). Rosenkranz A. et al studied the frictional behavior of plane converging bearings experimentally and numerically using four texture geometries fabricated by ultrashort pulse laser texturing (single pocket, line-, cross-and dotlike texture) under full-film lubrication in the presence of thick oil films (up to 100 mm), and the results demonstrated that textures were beneficial for friction reduction for high convergences, regardless of load and relative texture's position (Rosenkranz et al, 2019b).…”

Section: Introductionmentioning

confidence: 99%

Influence of Groove Dimensions on the Tribological Behavior of Textured Cylindrical Roller Thrust Bearings under Starved Lubrication

Long

Zhao

Jin

et al. 2021

ILT

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Purpose The purpose of this paper is to reveal the friction and wear performance of grooves textured cylindrical roller thrust bearings with different groove dimensions under starved lubrication. Design/methodology/approach The groove dimensions include: width of grooves (WOG, 50 µm, 100 µm and 150 µm), depth of grooves (DPOG, 7 µm, 11 µm and 15 µm) as well as groove deflection angle (GDA, 45°). A fiber laser marking system was used to prepare groove patterns on the raceways of shaft washers. The friction and wear properties of grooves textured bearings were researched through a vertical universal wear test rig using a customized roller bearing tribo-pair under starved lubrication. Static finite element analyses were conducted to reveal their surface stresses. Through the comprehensive comparison and analyses, the influence mechanism of grooves on the tribological behavior of cylindrical roller thrust bearings was proposed and discussed. Findings When grooves textured bearings run under starved lubrication, their average coefficients of friction (COFs) and wear losses are all significantly reduced and much lower than those of smooth group. The influence of DPOG on the COF curves is significant, while the influence of WOG on the COF curves is a little weak. The influence of groove dimensions on the surface stresses of grooves textured bearings is weak, whether the WOG or DPOG. In this work, when the WOG is 100 µm and the DPOG is 15 µm, its average COF and wear loss are both the lowest, 0.0066 and 0.61 mg, respectively. Compared with the data of smooth group, its friction coefficient is reduced by 75.3% and its mass loss is reduced by 95.8%, showing a significant improvement in this condition. Originality/value This work can provide a valuable reference for the raceway design and reliability optimization of rolling element bearings.

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Section: Introductionmentioning

confidence: 99%

Influence of Groove Dimensions on the Tribological Behavior of Textured Cylindrical Roller Thrust Bearings under Starved Lubrication

Long

Zhao

Jin

et al. 2021

ILT

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“…The test bench used in this work is not accurate enough to reflect a real full-size high-speed train brake system. However, considering that the brake properties are strongly related to the contact interface between the disc and friction block and the contact interface property significantly affects the tribological and dynamical behavior, 43 in this work, these two important components are included in the experimental model. This allows us to determine the relationship between the friction block structures and brake contact interfacial properties.…”

Section: Description Of Experimental Testsmentioning

confidence: 99%

Tribological and dynamical analysis of a brake pad with multiple blocks for a high-speed train

Tang

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this research, the tribological and dynamical characteristics of a brake pad with multiple blocks are investigated using experimental and numerical methods. A dynamometer with a multiblock brake pad configuration on a brake disc is developed and a series of drag-type tests are conducted to study the brake squeal and wear behavior of a high-speed train brake system. Finite element analysis is performed to derive physical explanations for the observed experimental phenomena. The experimental and numerical results show that the rotational speed and braking force have important influences on the brake squeal; the trends of the multiblock and single-block systems are different. In the multiblock brake pad, the different blocks exhibit significantly different magnitudes of contact stresses and vibration accelerations. The blocks located in the inner and outer rings have higher vibration acceleration amplitudes and stronger vibration energies than the blocks located in the middle ring.

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“…investigated the influence of the grooved surface on the tribological behavior and noise response of railway brake systems, and found that when the angle between grooves and rotating velocity direction is 45 , the textured surface shows a better ability in entrapping wear debris than that of textured surface in 90 , indicating a greater potential in reducing the squeal instability of the friction system. 16 However, the research about the antiwear properties of GCI rings with curve distributed pits in the radial direction (CDPRD) have not been reported, and the influence mechanism of CDPRD on the tribological behavior of GCI samples is not clear yet. [17][18][19][20][21] Therefore, based on previous researches on the anti-wear performance of LDPRD (linear distributed pits in radial direction) textured GCI rings, [22][23][24] a CDPRD pattern was introduced in this work.…”

Section: Introductionmentioning

confidence: 99%

The influence of initial deflection angle on the tribological properties of gray cast iron rings with curve distributed pits under dry sliding

Sun

Long

Zhang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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This study presents the influence of initial deflection angle (IDA) on the tribological properties of gray cast iron (GCI) rings with curve distributed pits in the radial direction (CDPRD). The thermal behavior of pits textured GCI rings with different initial deflection angles (0°, 30°, 45°, 60°, 75°) and fixed deflexional angle of adjacent pits (DAAP, 10°) were researched, through APDL programming. A pin-on-disc wear test rig was used to reveal the anti-wear performance of samples under dry sliding, at a rotating speed of 200 rpm, with a normal load of 70 N. An electronic balance and an optical microscope (OM) were used to obtain their wear losses and worn surfaces, respectively. The results show that: comparing with the smooth GCI ring, there are evident high temperature regions between two adjacent pits groups, called “temperature barrier and separation effect”. Among all textured samples, the von Mise’s stress of IDA45 is the most stable, and its temperature is almost the lowest. The friction coefficient curve and the wear loss of IDA45 are also the lowest, and much lower than the loss of smooth GCI ring, indicating the excellent anti-wear performance. This work can provide a valuable reference for the surface design of journal bearings.

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Improving tribological behaviours and noise performance of railway disc brake by grooved surface texturing

Cited by 39 publications

References 44 publications

Influence of Groove Dimensions on the Tribological Behavior of Textured Cylindrical Roller Thrust Bearings under Starved Lubrication

Influence of Groove Dimensions on the Tribological Behavior of Textured Cylindrical Roller Thrust Bearings under Starved Lubrication

Tribological and dynamical analysis of a brake pad with multiple blocks for a high-speed train

The influence of initial deflection angle on the tribological properties of gray cast iron rings with curve distributed pits under dry sliding

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