Measuring tire friction under slip with the Penn State Road Friction Tester. Paper presented at the 47th Annual Meeting of Highway Research Board HRB, 1968.

Author(s)
Domandl, H. & Meyer, W.E.
Year
Abstract

The adaptation of the Penn State Road Friction Tester which was originally designed for measuring skid resistance with a full-scale tire, to the measurements of tire-pavement friction under slip is described. The method employed consist in gradually retarding the test wheel by an adjustable brake actuating system and measuring the forces in both horizontal arms of the test wheel parallelogram suspension. By electric addition of these forces and measuring vehicle speed and test wheel velocity the complete friction vs. slip relationship of an individual test cycle is obtained. Typical results are presented.

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Publication

Library number
A 3931 fo
Source

[S.l., s.n.], 1968, Pp., 5 ref. / Also published as: Highway Research Record, No. 214, 1968, p. 34-41, 5 ref.

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