Journal
TRIBOLOGY INTERNATIONAL
Volume 44, Issue 9, Pages 963-970Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2011.03.018
Keywords
On-line condition monitoring; Lubricating oil viscosity; Rheology; Magnetoelastic viscometer
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Funding
- Korea Institute of Science and Technology [2V01500]
- National Research Council of Science & Technology (NST), Republic of Korea [2V01500] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The paper describes the theoretical standpoints of developing magnetoelastic viscometers and a concept of viscosity measurement. The magnetoelastic viscometer has shown the readings close to the capillary viscometer. Testing of the oils with PMMA viscosity-index improvers by viscometers has indicated changes in rheological properties observed in the non-Newtonian behavior of the oils. With increase in content or molecular weight of the improver, the non-Newtonian behavior of the oil appeared at lower frequencies of viscosity measurements. (C) 2011 Elsevier Ltd. All rights reserved.
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