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Tribology Letters
Erschienen in: Tribology Letters 2/2007

01.08.2007 | Original Paper

An Experimental Investigation of Dimple Effect on the Stribeck Curve of Journal Bearings

verfasst von: Xiaobin Lu, M. M. Khonsari

Erschienen in: Tribology Letters | Ausgabe 2/2007

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Abstract

The friction characteristic of a journal bearing with dimpled bushings manufactured using the machining and the chemical etching techniques is investigated. A series of experimental results is presented to examine the effect of dimples on the Stribeck curve. Load, oil type, dimple size, depth and shape are varied to explore their influence on the friction characteristics. It is shown that with proper dimensions of dimples, the friction performance of journal bearings can be improved, particularly for light oils. The results reveal that in mixed lubrication regime, the so-called secondary lubrication effect in the dimpled area is the main mechanism responsible for improvement of performance. Experimental results also indicate that a bushing with etched dimples over the entire circumference offer a better frictional performance than a bushing with dimples etched on half of its circumference.
Vorheriger Artikel Raman Scattering from Confined Liquid Films in the Sub-Nanometre Regime
Nächster Artikel Antiwear Action of Mineral Lubricants Modified by Conventional and Uncoventional Additives

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Metadaten
Titel
An Experimental Investigation of Dimple Effect on the Stribeck Curve of Journal Bearings
verfasst von
Xiaobin Lu
M. M. Khonsari
Publikationsdatum
01.08.2007
Erschienen in
Tribology Letters / Ausgabe 2/2007
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-007-9217-x

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