DYNAMIC STABILITY OF 2 TRACTOR FRONT-END LOADER SYSTEMS

A one-quarter scale model tractor and loader were designed fabricated and used in an experiment to evaluate two tractor-loader configuration s relative to stability using roll angle as the means of assessment. T he nonconventional loader system consisted of a conventional loader at tached to a steerable carrier which in turn was attached to The tracto r by the front axle and drawbar of the tractor The stabilizing axle fo r the non-conventional loader system was the front axle as opposed to the conventional system in which the stabilizing axle was the rear axl e. The experiment showed that the non-conventional loader had an inher ent advantage in stability as assessed by roll angle. The roll angle w as smaller at higher velocity than at lower velocity because the tires underwent greater deformation at the higher velocity than at the lowe r velocity.