Vibration studies of lubricated textured point contacts of bearing steels due to surface topographies: Simulations and experiments

Sudeep, U.; Tandon, N.; Pandey, R. K.

doi:10.1016/j.triboint.2016.05.040

Cited by 27 publications

(18 citation statements)

References 31 publications

(43 reference statements)

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“…The roles of textures on the performance behaviours of different generic concentrated contacts have been explored by many researchers (Sudeep et al , 2015a; Gropper et al , 2016; Houdková et al , 2017; Gachot et al , 2017; Grützmacher et al , 2018). The frictional (Gualtieri et al , 2009; Kovalchenko et al , 2011; Podgornik et al , 2012; Rosenkranz et al , 2015; Sudeep et al , 2013, 2015b, 2016a, Tripathi et al , 2016; Wos et al , 2015; Yu et al , 2013), wear (Kovalchenko et al , 2011; Sudeep et al , 2015b, 2016a; Tripathi et al , 2016; Rosenkranz et al , 2016) and vibration (Sudeep et al , 2013, 2016a, 2016b) performances of textured contacts have been studied fairly in-depth. Based on these studies, reductions in friction and vibration have been found in the range of 23-50 per cent and 14 per cent-38 per cent, respectively.…”

Section: Introductionmentioning

confidence: 99%

Performance studies of textured race ball bearing

Bhardwaj

Pandey

Agarwal

2019

ILT

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Purpose The purpose of this paper is to develop an energy-efficient and dynamically improved thrust ball bearing using textured race. A texture has been used on the stationary race of the test bearing to conduct the long-duration experiment for exploring its tribological and vibrational behaviours under starved lubricating condition using micro size MoS2 blended grease. The performance behaviours of the textured race bearing have been compared with conventional bearing (i.e. having both races without textures) under the identical operating conditions for demonstrating the advantages of textured race. Design/methodology/approach Texture was created on stationary race of the test ball bearing (51308) using nano-second pulsed Nd: YAG laser. Performance parameters (frictional torque, temperature rise and vibrations) of textured ball bearings were measured under severe starved lubricating conditions for understanding the critical role of texture in the long duration of the test. S-type load cell and miniature accelerometer were used for measuring the frictional torque and vibration, respectively. Bulk temperature at stationary races (at the back side) of test bearings was measured in operating conditions using a non-contact infrared thermometer. Findings Significant reduction in frictional torque and decrease in amplitude of vibration with textured ball bearing were found even under the severe starved lubricating condition in comparison to conventional bearing. Originality/value There is dearth of research pertaining to the performance behaviours of ball bearings using textures on the races. Therefore, an attempt has been made in this study to explore the tribo-dynamic performance behaviours of a thrust ball bearing using a texture on its stationary race under severe starved lubricating condition for the longer duration of the test.

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Section: Introductionmentioning

confidence: 99%

Performance studies of textured race ball bearing

Bhardwaj

Pandey

Agarwal

2019

ILT

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“…It was observed that the contact between surfaces having large size dimples and high dimple area density would affect the vibration amplitude at the resonance frequency. 14 Furthermore, the Fokker–Planck model was proposed to analyse the effect of surface roughness on contact vibration of rolling bearings. Results showed that the surface roughness has a greater impact on the vibration of high-speed bearings than low-speed bearings.…”

Section: Introductionmentioning

confidence: 99%

Wear characterization under sliding–rolling contact using friction-induced vibration features

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Skidding in rolling bearings often causes unexpected surface wear and early failures. Although vibration monitoring is widely used for bearing fault diagnosis, it is much less developed for wear analysis. This paper presents an investigation into characterizing the surface wear of a simplified sliding–rolling contact using friction-induced vibration features. The friction vibration mechanism under a rough sliding–rolling contact is explored by a mixed elastohydrodynamic lubrication model. It is found that the friction coefficient has a positive correlation with the surface roughness, which indicates that the friction behaviour can be used to track the wear state under the sliding–rolling contact. Furthermore, the vibration excited by different rough surfaces is studied experimentally on a roller–ring test rig. The friction-induced vibration signal is extracted and a feature parameter ( K) is defined for quantitative wear characterization. Results show that the friction-induced vibration can well reflect the surface wear under the sliding–rolling contact. Compared with traditional time-domain parameters, the proposed parameter has a better linear relationship with the surface roughness.

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“…1,2 The mechanism of contact action involves friction, wear, lubrication, adhesion, thermal conductivities and other contact statuses. [3][4][5][6] Many analytical methods have been proposed and improved to model machined surfaces. However, it is difficult to establish a complete, accurate and universal contact model owing to complex statuses in multiphysics.…”

Section: Introductionmentioning

confidence: 99%

Contact analysis of measured surfaces based on modified interacting and coalescing Hertzian asperities (ICHA) model with oblique contact asperities

Zhang

Wei

Chen

2021

Advances in Mechanical Engineering

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The contact mechanism for joint surfaces is important for predicting the loading process and dynamic properties of precision machinery products. A multiasperity model considering the lateral interaction and coalescence of contact regions with oblique asperity contact, the interacting and coalescing Hertzian asperities (ICHA) model, is introduced in this work. Contact angle [Formula: see text] and radius of curvature [Formula: see text] are vital parameters that are directly calculated based on grid points measured from the milling and grinding surfaces. Numerical simulations of [Formula: see text] and [Formula: see text] were analysed. The results show that the proposed model is more effective at improving the contact area versus force relationship than various asperity models for low and middle contact forces. [Formula: see text] and [Formula: see text] follow a Gaussian distribution. Because of the existence of coalescence, they decrease with increasing contact force. Furthermore, the [Formula: see text] and [Formula: see text] in the startup phase are crucial data that can be used to judge the effects of oblique asperity contact. They are greatly influenced by fractal dimension [Formula: see text] and fractal roughness G. From the comparisons with the surfaces generated by Weierstrass-Mandelbrot function, it is suggested that to obtain an accurate contact prediction in the loading process, oblique contact is as important as lateral interaction and coalescence.

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Vibration studies of lubricated textured point contacts of bearing steels due to surface topographies: Simulations and experiments

Cited by 27 publications

References 31 publications

Performance studies of textured race ball bearing

Performance studies of textured race ball bearing

Wear characterization under sliding–rolling contact using friction-induced vibration features

Contact analysis of measured surfaces based on modified interacting and coalescing Hertzian asperities (ICHA) model with oblique contact asperities

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