Wear Prediction of Earth-Moving Machinery Joint Bearing via Correlation between Wear Coefficient and Film Parameter: Experimental Study

During running-in conditions, contact occurs between surface asperities, which induce wear and bearing shell profile adaptation. Firstly, the bearing wear evolution is investigated for different but constant engine rotational speeds. Secondly, the wear is investigated for transient speed conditions. By comparison with a realistic wear coefficient, the real engine time required to reach a steady-state wear condition is predicted.

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Experimental Study to Examine Wear Characteristics and Determine the Wear Coefficient of Ductile Cast Iron (DCI) Roll

Journal of the Korean Society of Tribologists and Lubrication Engineers ◽

10.9725/kstle.2017.33.3.98 ◽

2017 ◽

Vol 33 (3) ◽

pp. 98-105

Author(s):

Sang-Min Byon

Keyword(s):

Experimental Study ◽

Cast Iron ◽

Ductile Cast Iron ◽

Wear Coefficient ◽

Wear Characteristics

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A new approach to determine the wear coefficient for wear prediction of sheet metal forming tools

Production Engineering ◽

10.1007/s11740-007-0065-1 ◽

2007 ◽

Vol 1 (4) ◽

pp. 357-363 ◽

Cited By ~ 8

Author(s):

H. Hoffmann ◽

G. Nürnberg ◽

K. Ersoy-Nürnberg ◽

G. Herrmann

Keyword(s):

Sheet Metal ◽

Sheet Metal Forming ◽

Metal Forming ◽

Wear Coefficient ◽

Wear Prediction ◽

New Approach ◽

Forming Tools

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An Experimental Study of the Fretting Wear Coefficient for the Dimple-Gimbal Interface

2014 Conference on Information Storage and Processing Systems ◽

10.1115/isps2014-6987 ◽

2014 ◽

Author(s):

Zhengqiang Tang ◽

Frank E. Talke

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Experimental Study ◽

Normal Load ◽

Wear Scar ◽

Fretting Wear ◽

Wear Volume ◽

Wear Coefficient ◽

Scanning Electron

The effect of normal load on fretting wear of the dimple-gimbal interface is investigated. The wear volume, the wear coefficient and the friction-displacement loops are studied as a function of the number of fretting wear cycles. The wear volume of the dimple is calculated from the radius of the wear scar obtained using scanning electron microscopy. The results show that the wear coefficient decreases with an increase in the number of fretting wear cycles.

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Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013955x ◽

1995 ◽

Vol 53 ◽

pp. 636-637

Author(s):

Norio Baba ◽

Norihiko Ichise ◽

Syunya Watanabe

Keyword(s):

Experimental Study ◽

Spherical Aberration ◽

Incident Beam ◽

Optical Parameters ◽

Beam Tilting ◽

Illumination Method ◽

Restoration Method ◽

Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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