SAE J 2731:2018-11-20

This SAE Recommended Practice describes a test method for measuring the forces and moments generated at a spindle when a tire rolls over a rectangular obstacle, cleat, at very low speed. The cleat used in a particular test condition is configured with its crest either perpendicular, 90 degrees, to the path of the tire or optionally with its crest inclined at an angle to the path of the tire. The carriage to which the spindle is attached is rigidly constrained in position during each test condition so as to provide a good approximation to fixed loaded radius operation. The method discussed in this document provides cleat envelopment force and moment and tire angular position histories as functions of distance traveled. These histories are essentially free from variations due to tire non-uniformities. The method applies to any size tire so long as the equipment is properly scaled to conduct the measurements for the intended test tire. The data are suitable for use in determining parameters for road load models and for comparative evaluations of the measured properties in research and development.

Author	SAE
Editor	SAE
Document type	Standard
Format	File
ICS	43.040.60 : Bodies and body components
Number of pages	12
Replace	SAE J 2731:2018-05-16
Set	JPAKS10U-10
Year	2018
Document history	SAE J 2731:2018-05-16
Country	USA
Keyword	SAE 2731;SAE J2731;SAE J2731;SAE J 2731