The unique difficulties associated with low frequency and large amplitude ride vibrations of off-road tractor are summarized. Concept of a cab suspension system for improving the ride quality of off-road tractors in the bounce, longitudinal, lateral, pitch and roll modes is explored. Influence of suspension parameters on the ride performance is presented followed by selection of optimal suspension parameters. It is shown that a cab suspension would provide improved performance in the longitudinal and pitch modes alone. Ride analysis of the cab suspension with a sprung seat reveals satisfactory bounce ride. Roll and lateral ride of the off-road tractor can be improved significantly through alterations in the cab geometry. The ride performance of the optimal suspensions is assessed with reference to ISO (International Standards Organization) specified “fatigue decreased proficiency” (FDP) boundaries.
Suspension Designs to Improve Tractor Ride: II. Passive Cab Suspension
Sae Technical Papers
1984 SAE International Off-Highway and Powerplant Congress and Exposition ; 1984
1984-09-01
Conference paper
English
Suspension Designs to Improve Tractor Ride: 2. Passive Cab Suspension
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