Effects of Thermal Boundary Conditions on Plain Journal Bearing Thermohydrodynamic Lubrication

• Published in: Tribology transactions Vol. 56; no. 5; pp. 759 - 770
• Main Authors: Zhang, Z. S., Yang, Y. M., Dai, X. D., Xie, Y. B.
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01.09.2013; Taylor & Francis; Taylor & Francis Inc
• Subjects: Applied sciences; Bearings, bushings, rolling bearings; Boundary conditions; Drives; Exact sciences and technology; Journal bearings; Mathematical models; Mechanical engineering. Machine design; Plain Journal Bearings; Temperature effects; Thermal Boundary Conditions; Thermodynamics; Thermohydrodynamic Lubrication; Tribology; Temperature distribution; Heat equation; Operating mode; Boundary condition; Thermal Boundary Conditions; Cavitation; Thermohydrodynamic Lubrication; Three dimensional model; Thermodynamic model; Plain bearing; Lubrication; Reynolds equation; Journal bearing; Plain Journal Bearings
• ISSN: 1040-2004; 1547-397X
• DOI: 10.1080/10402004.2013.797531

The thermal boundary conditions (TBCs) play an important role in determining the temperature field of plain journal bearings. Well-chosen TBCs are beneficial in obtaining reliable results corresponding to actual operating conditions. In this article, a thermohydrodynamic (THD) model of plain journal bearings is proposed by taking mass-conserving cavitation into account. The three-dimensional energy equation and heat conduction equations in the solids are solved simultaneously. A comprehensive analysis is provided to examine the influence of the TBCs on the THD solution of plain journal bearings.