A complete solution is obtained for elastohydrodynamically lubricated conjunctions in line contacts considering the effects of temperature and the non-Newtonian characteristics of lubricants with limiting shear strength. The complete fast approach is used to solve the thermal Reynolds equation by using the complete circular non-Newtonian fluid model and considering both velocity and stress boundary conditions. The reason and the occasion to incorporate stress boundary conditions for the circular model are discussed. A conservative form of the energy equation is developed by using the finite control volume approach. Analytical solutions for solid surface temperatures that consider two-dimensional heat flow within the solids are used. A straightforward finite difference method, successive over-relaxation by lines, is employed to solve the energy equation. Results of thermal effects on film shape, pressure profile, streamlines, and friction coefficient are presented.

Issue Section:
Research Papers
Topics:
Lubrication, Non-Newtonian fluids, Boundary-value problems, Stress, Temperature effects, Finite difference methods, Flow (Dynamics), Friction, Heat, Lubricants, Pressure, Relaxation (Physics), Shapes, Shear strength, Solids, Temperature
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Copyright © 1992
 by The American Society of Mechanical Engineers
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