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Abstract
A complete solution for the inlet half of an elastohydrodynamic contact between two circumferentially ground rough disks is presented. The effect of the roughness of the surfaces both on the hydrodynamic and on the contact mechanics of the system is taken into account. The temperature distribution on the surfaces resulting from asperity interactions in the inlet zone is also included.
The results are discussed in relation to the conditions of scuffing failure observed experimentally. Surface interactions are much more sever than would be expected from conventional smooth-surface theory. Asperity interaction in the inlet zone can provoke thermal instability, but only for unrealistically high values of the thermal feedback parameter. The results support the suggestion that failure occurs when the mean hydrodynamic pressures generated by the system are no longer sufficient to permit a liquid film of very high viscosity to be interposed between the interaction asperities.
Presented as an American Society of Lubrication Engineers paper at the ASLE/ASME Lubrication Conference in Boston, Massachusetts, October 5–7, 1976
Notes
Presented as an American Society of Lubrication Engineers paper at the ASLE/ASME Lubrication Conference in Boston, Massachusetts, October 5–7, 1976
