METHOD AND DEVICE FOR CHARACTERIZING THE TRIBOLOGICAL PROPERTIES OF A FLUID

摘要

The method is carried out in a device (2) comprising a test roller (22) in contact with a planar test sample (23), with the fluid being present in the contact area between the test roller and the planar test sample. According to the invention, at least one tribological property of the fluid is measured by carrying out a determined cyclic kinematics comprising in each cycle a translational movement (F) between the test roller and the planar test sample, a bearing with sliding ( AH) of the test roller against the planar test sample and a revolution of the test roller on itself with an axis of revolution (21) perpendicular to the contact zone. Fig. 3