Scale and contact geometry effects on friction in thermal EHL: twin-disc versus ball-on-disc

Liu, Hai Chao; Zhang, Binbin; Bader, Norbert; Venner, Cornelis H.; Poll, Gerhard

doi:10.1016/j.triboint.2020.106694

Cited by 14 publications

(24 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the results presented here relate to squalane, which is the lubricant selected in [1]. It is a synthetic hydrocarbon of formula C30H62 purchased from Sigma Aldrich.…”

Section: Experimental Approach and Comparisonmentioning

confidence: 99%

“…It is a synthetic hydrocarbon of formula C30H62 purchased from Sigma Aldrich. Friction tests have been performed at 40°C (as in [1]) on a homemade ball-on-disc tribometer (Jerotrib) following the protocol described in [4]. Friction curves have been measured with steel balls (Rx = 12.7 mm) and sapphire or steel discs, by varying the normal load and the relative velocities, firstly at a unique entrainment speed,…”

Section: Experimental Approach and Comparisonmentioning

confidence: 99%

“…Liu et al [1] present a study that aims at highlighting the influence of the contact geometry on the resulting macroscopic friction in EHL. They observe significant deviations in the friction coefficients measured under nominally similar conditions of pressure, temperature and entrainment velocity but from two distinct contact geometries and test rigs.…”

Section: Introductionmentioning

confidence: 99%

“…He also reminded [2,3] that effects such as the shear dependence of viscosity could occur in different parts of the contact (inlet, high-pressure zone) and make more complicate or even impossible the classical treatment of EHD friction from traction curves. Furthermore, it should be emphasized that the same complexity can apply to thermal effects, which are discussed in the subject paper [1].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Discussion on “Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc” by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021

Philippon

Martinie

Vergne

2021

Tribology International

View full text Add to dashboard Cite

“…All the results presented here relate to squalane, which is the lubricant selected in [1]. It is a synthetic hydrocarbon of formula C30H62 purchased from Sigma Aldrich.…”

Section: Experimental Approach and Comparisonmentioning

confidence: 99%

Section: Experimental Approach and Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Discussion on “Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc” by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021

Philippon

Martinie

Vergne

2021

Tribology International

View full text Add to dashboard Cite

“…1,2 According to this analysis, the effects of the elastic deformation of working surface have a great importance in the pressure distribution of the oil film and its loading capacity. For example, some papers 3,4 have reported that loading capacity of rigid journal bearing is bigger than that of journal bearing considering its materials elastic deformation. Meanwhile, the elastic deformation of the liner has also been considered about its lubrication influence on journal bearings, 5 authors mainly investigated that the elasticity effect of the liner reduces with increasing loading capacity and increases with increasing coefficient of friction.…”

Section: Introductionmentioning

confidence: 99%

The lubrication characteristics of magnetized journal bearings affected by magnetic fluids considering the elasticity of its liner

Maiti

et al. 2022

Advances in Mechanical Engineering

View full text Add to dashboard Cite

In order to investigate the lubrication characteristics of journal bearings with the elasticity of liner affected by magnetic fluids, a theoretic computation model was developed based on magnetic fluids supporting force parameter ([Formula: see text]) and couple-stress factor ([Formula: see text]). The results indicate that maximum dimensionless pressure peak ([Formula: see text]) of oil-film increases with increase in magnetic fluids supporting force parameter ([Formula: see text]), couple-stress factor ([Formula: see text]) and with decrease in elastic deformation coefficient ( Ce) of the liner. The loading capacity ([Formula: see text]) increases with increase in [Formula: see text], [Formula: see text] and with decrease in Ce particularly in the high eccentricity ratio ( ε); The attitude angle ([Formula: see text]) of S with different [Formula: see text] and [Formula: see text] decreases in a small range of ε at first, and then increases, it increases with the decrease of [Formula: see text] and [Formula: see text], and with the increase of [Formula: see text], theses phenomena are more obvious for [Formula: see text] at low ε and for [Formula: see text] and [Formula: see text] at moderate and high ε; the modified coefficient of friction ([Formula: see text]) decreases with increase in [Formula: see text], [Formula: see text] and with decrease in Ce; the side leakage ( Q) decreases with increase in [Formula: see text], with decrease in [Formula: see text] and with increase in Ce particularly in the low ( ε). Moreover, the increase of elastic deformation coefficient ( Ce) weaken the impacts of [Formula: see text], [Formula: see text] on the increase of [Formula: see text], [Formula: see text],[Formula: see text], and the decrease of [Formula: see text], Q.

show abstract

Effect of Film Thickness on Slip and Traction Performances in Elastohydrodynamic Lubrication by a Molecular Dynamics Simulation

Shi

Wang

et al. 2021

Tribol Lett

View full text Add to dashboard Cite

Scale and contact geometry effects on friction in thermal EHL: twin-disc versus ball-on-disc

Cited by 14 publications

References 39 publications

Discussion on “Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc” by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021

Discussion on “Scale and contact geometry effects on friction in thermal EHL: Twin-disc versus ball-on-disc” by Liu, Zhang, Bader, Venner, Poll, Tribology International 154, 106694, 2021

The lubrication characteristics of magnetized journal bearings affected by magnetic fluids considering the elasticity of its liner

Effect of Film Thickness on Slip and Traction Performances in Elastohydrodynamic Lubrication by a Molecular Dynamics Simulation

Contact Info

Product

Resources

About