Open AccessFIELD TESTING OF COMPACTION CHARACTERISTICS FOR FARM TRACTOR UNIVERSAL 445
Author(s) -
D. Cujbescu,
N. Ungureanu,
V. Vlăduţ,
C. Persu,
M. R. Oprescu,
N. E. Gheorghiță
Publication year - 2019
Publication title -
inmateh - agricultural engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 9
eISSN - 2068-2239
pISSN - 2068-4215
DOI - 10.35633/inmateh-59-27
Subject(s) - tractor , compaction , footprint , environmental science , soil compaction , contact area , front (military) , agricultural machinery , geotechnical engineering , agriculture , materials science , geology , engineering , automotive engineering , composite material , mechanical engineering , geography , paleontology , archaeology
In the past few decades, size and weight of agricultural machinery have increased significantly, and as a consequence, the severity and depth to which the stress is transmitted into agricultural soil have increased. The objective of experimental determinations was to study the influence of some factors characteristics to compaction: tire inflation pressure, wheel load and contact pressure on the contact area between tire and soil, as well as 2D and 3D mapping of pressure distribution in the footprint. The front tire of the U445 Romanian agricultural tractor was tested at five tire inflation pressures: 100, 150, 200, 250 and 300 kPa, obtaining contact areas between 0.0252 – 0.0349 m2 and contact pressures between 98 - 136 kPa.