This page will discuss my ASAE which has just been completed at Auburn University and the National Soil Dynamics Laboratory. Please enjoy and send me feedback!
WAR EAGLE!!!
An ASAE Meeting Presentation: ASAE Paper # 951328
Front and Rear Tractor Tire Effects on Soil Stresses and Rut Depths
Presented at the 1995 ASAE Annual International Meeting sponsored by THE AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS
Chicago, Illinois
June 18-23, 1995
SUMMARY
Soil stresses were determined just above hardpans and rut depths were measured beneath the centerlines of tires representative of front and rear tires of a mechanical front wheel drive (MFWD) tractor with dual rear tires. A 14.9R30 R-1 front tire and an 18.4R42 R-1 rear tire were operated on a sandy loam and a clay loam soil with loose soil above hardpans in soil bins, using three combinations of dynamic load and inflation pressure representative of a tractor hitched to a row-crop planter. When this type of tractor is used with either an integral planter with liquid chemical carried on the tractor, or a towed planter without liquid chemical carried on the tractor, the front tires cause greater soil stresses, so they have a greater potential to compact soil than the rear tractor tires. A tractor configured for use with a towed planter without liquid chemical carried on the tractor causes lower soil stresses, so it has less potential to compact soil beneath the tractor tires than a tractor configured for an integral planter with liquid chemical carried on the tractor.
KEYWORDS: Soil compaction, soil dynamics, tires, tracks, sensors, soil-wheel interaction
FRONT AND REAR TRACTOR TIRE EFFECTS ON SOIL STRESSES AND RUT DEPTHS
ABSTRACT
Soil stresses were determined just above a hardpan beneath the centerlines of tires representative of front and rear tires of a mechanical front wheel drive (MFWD) tractor with dual rear tires. Rut depths were measured at the centerline of each tire track. A 14.9R30 R-1 front tire and an 18.4R42 R-1 rear tire were operated on a sandy loam and a clay loam soil with loose soil above hardpans in soil bins, using three combinations of dynamic load and inflation pressure representative of a tractor hitched to a row-crop planter. When a tractor of this type is used with either an integral planter with liquid chemical carried on the tractor, or a towed planter without liquid chemical carried on the tractor, the front tires cause greater soil stresses and rut depths than the rear, so the front tires have the greatest potential to compact the soil beneath the tractor tires. A tractor configured for use with a towed planter without liquid chemical carried on the tractor has less potential to compact soil beneath the tractor tires than a tractor configured for an integral planter with liquid chemical carried on the tractor.
Click here to get to go back to my hotlist page.
DISCLAIMER: The content of these WWW pages in no way reflects the policies or opinions of
Auburn University or the Auburn School of Engineering . They are the sole responsibility of the author.
Brian K. Pearman : (bpearman@eng.auburn.edu)