Inżynieria Rolnicza
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Title : Assessment of the change in the rolling resistance of a wheel in varied field conditions
Key words : tractor; tyre; rolling resistance; pulling force; compaction; vertical load;
Summary :

The paper presents the research results concerning the rolling resistance of a wheel on agricultural surfaces. Research on traction was carried out in field conditions with the use of a mobile stand; a wheel with 9.5-24 tyre was investigated; values of the rolling resistance and the pulling force were analysed with reference to the wheel slip. A type of surface (soil, sod), its compaction and the vertical load of a wheel were assumed as factors. Based on the obtained results, it was proved that the rolling resistance was by approx. 30% higher on soil than on sod. Differences resulting from the variety of surfaces were higher than the differences caused by various values of their compaction (did not exceed 25%). No significant impact of compaction changes on the rolling resistance and pulling force values were proved but a considerable increase of the rolling resistance value along with the decrease of its compaction were determined. Moreover, it was proved that the increase of the vertical load of a wheel resulted in the increase of the rolling resistance and the pulling force on both grounds but these changes were higher on soil than on sod.

Please use the following format to cite the selected article : Białczyk, W., Brennensthul, M., Cudzik, A., Czarnecki, J. (2015). Assessment of the change in the rolling resistance of a wheel in varied field conditions. Inzynieria Rolnicza, 4(156), 5-13.
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