Assessment of the Change in the Rolling Resistance of a Wheel in Varied Field Conditions

• Autorzy: Włodzimierz Białczyk , Marek Brennensthul , Anna Cudzik , Jarosław Czarnecki

Warianty tytułu

Ocena zmian oporu przetaczania koła w różnych warunkach polowych

• Języki publikacji: EN

Abstrakty

EN

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.(original abstract)

W pracy przedstawiono wyniki badań dotyczące oporu przetaczania koła ciągnika na podłożach rolniczych. Badania trakcyjne wykonano w warunkach polowych z wykorzystaniem mobilnego stanowiska, badano koło z oponą 9.5-24, analizowano wartości oporu przetaczania oraz siły uciągu w odniesieniu do poślizgu koła. Jako czynniki przyjęto rodzaj podłoża gleba, darń łąkowa), jego zwięzłość oraz obciążenie pionowe koła. Na podstawie uzyskanych wyników wykazano, że na glebie wartości oporu przetaczania były o ok. 30% wyższe niż na darni. Różnice wynikające z odmienności podłoży były większe niż różnice powodowane różnymi wartościami ich zwięzłości (nie przekraczały 25%). Na darni nie wykazano istotnego wpływu zmian zwięzłości na wartości oporu przetaczania i siły uciągu, natomiast na glebie stwierdzono znaczny wzrost wartości oporu przetaczania wraz ze spadkiem jej zwięzłości. Ponadto wykazano, że zwiększanie obciążenia pionowego koła skutkowało wzrostem oporu przetaczania i siły uciągu na obu podłożach, przy czym na glebie zmiany te były większe niż na darni.(abstrakt oryginalny)

Słowa kluczowe

EN

Agriculture; Machinery and equipment; Agricultural machinery industry

PL

Rolnictwo; Maszyny i urządzenia; Przemysł maszyn rolniczych

• Czasopismo: Agricultural Engineering
• Rocznik: 19 (2015)
• Numer: nr 4 (156)
• Strony: 5--13

Twórcy

autor

Włodzimierz Białczyk

• Wroclaw University of Environmental and Life Sciences

autor

Marek Brennensthul

• Wroclaw University of Environmental and Life Sciences

autor

Anna Cudzik

• Wroclaw University of Environmental and Life Sciences

autor

Jarosław Czarnecki

• Wroclaw University of Environmental and Life Sciences

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Identyfikatory

DOI

http://dx.medra.org/10.14654/ir.2015.156.146