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Article | REF: TRI1540 V1

Elastohydrodynamic lubrication

Author: Pascal GUAY

Publication date: March 10, 2015

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5. EHD lubrication of point contact

Under load, the contact area increases and becomes elliptical (see figure 8 ). By reducing one of the two surfaces to a plane, the contact is equivalent to a barrel-plane contact, which will have the same elliptical zone and pressure field as the actual contact. The barrel has two main radii of curvature, which we will note R x in the direction of the bearing and R y in the direction perpendicular to the bearing.

5.1 Dimensions of the contact ellipse

The radii...

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