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Thermohydrodynamic Analysis of Journal Bearing Operating Under Nanolubricants

[+] Author Affiliations
K. Prabhakaran Nair, P. K. Rajendra Kumar, K. Sreedhar Babu

NIT Calicut, Calicut, India

Paper No. IJTC2011-61244, pp. 17-21; 5 pages
doi:10.1115/IJTC2011-61244
From:
  • ASME/STLE 2011 International Joint Tribology Conference
  • ASME/STLE 2011 Joint Tribology Conference
  • Los Angeles, California, USA, Oct 24–26, 2011
  • ISBN: 978-0-7918-5474-7
  • Copyright © 2011 by ASME

abstract

The static performance characteristics of thermo hydrodynamic journal bearing operating under lubricant Veedol SAE 15W 40 multi grade engine oil with CuO, CeO2 and Al2 O3 nanoparticles are presented. These static performance characteristics mainly depend on the viscosity of the lubricant. The addition of nano particles on commercially available lubricant may enhance the viscosity of lubricant and in turn changes the performance characteristics. In the proposed work CuO, CeO2 and Al2 O3 nano particles are used with commercial lubricant Veedol SAE 15W 40 multi grade engine oil. To obtain pressure and temperature distribution, modified Reynolds and energy equations are used and these equations are solved by using the powerful numerical technique, Finite Element Method. An iterative procedure is used to establish the film extent. The static performance characteristics in terms of load capacity, attitude angle, end leakage and friction force are evaluated when the bearing operates under nanolubricants for the following cases. 1. Isoviscous; 2. Thermoviscous.

Copyright © 2011 by ASME

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