J2705_200510 Tire Quasi-Static Envelopment of Triangular/Step Cleats Test

This SAE Recommended Practice describes a test method for determining properties of a non-rolling tire quasi-statically enveloping, loaded onto, either a set of triangular cleats or a single step cleat. In the case of the triangular cleats the normal force and vertical deflection of the non-rolling tire are determined. In the case of the step cleats the normal force, longitudinal force, and vertical deflection of the non-rolling tire are determined. The method applies to any tire so long as the equipment is properly sized to correctly conduct the measurements for the intended test tire.¹ The data are intended for use in determining parameters for road load models and for comparative evaluations of the measured properties in research and development.