An instrumented drive axle to measure tire tractive performance

Hadi Goli, Saeed Minaee, Ali Jafari, Alireza Keyhani, Alimohammad Borghaee, Ali Hajiahmad
Journal of Terramechanics, Volume 49, Issue 6, December 2012, Pages 309-314, ISSN 0022-4898, 10.1016/j.jterra.2012.11.001.
http://www.sciencedirect.com/science/article/pii/S0022489812000663
Abstract: An instrumented drive axle is introduced for a prototype tractor using in field research on tractor and implement performance. This mechanism was developed to determine whether such an instrumented drive axle is practical. The drive axle was equipped with a set of transducers to measure wheel angular velocity, rear axle torque and dynamic weight, as well as tire side forces. Measuring the drawbar pull acting on the tractor provides data for calculating net traction, motion resistance and chassis resistance for each driven wheel.
Keywords: Dynamometer; Tractive performance; Tire side force; Vertical load; Net traction; Motion resistance; Chassis resistance