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Influence of Soil on the Traction Performance of a 65 kW MFWD Tractor

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  • A. Battiato
  • E. Diserens

Abstract

This study aimed to investigate the influence of the mechanical behaviour of the soil surface on the traction performance and the fuel consumption of an agricultural tractor, both in qualitative and in quantitative terms, in order to increase the consciousness about the major role of the soil mechanical response in the optimisation of the energy aspects involved in the traction developed by a tractor and promote the development of new strategies to reduce costs of tillage management and improve agricultural sustainability. The traction performance of a 65 kW MFWD tractor at tyre pressures of 60 and 160 kPa was compared on four Swiss agricultural soils- a clay with corn stubbles, a clay loam with wheat stubbles, a silty loam and a loamy sand both with corn stubbles. Tests performed with a bevameter pointed out noticeable differences in the mechanical behaviour of the soils. According to such differences, the drawbar pull on the four soils was significantly disparate with differences in maximal values of about 16% at a tyre pressure of 60 kPa and up to 37% at a tyre pressure of 160 kPa. Simulations with a semi-empirical tractor-soil interaction model also showed dissimilarities in traction coefficient, motion resistance, and traction efficiency. Measurements of the fuel consumption pointed out the presence of a narrow slip range where the specific fuel consumption SFC is minimised. This range doesn’t vary significantly among the considered soils as well as with the tyre pressure and doesn’t differ very much from the range where the power delivery efficiency is maximised. The SFC differed for almost 20% among the considered soils at a tyre pressure of 60 kPa and for ca. 10% at a tyre pressure of 160 kPa. The increase in tyre pressure from 60 to 160 kPa produced an increment in SFC up to 16%. The results of this study clearly pointed out how the traction performance is a characteristic of the tractor-soil system and not of the tractor only, therefore, a proper knowledge of the soil mechanical behaviour should aid in developing strategies oriented towards reducing fossil fuel consumption.

Suggested Citation

  • A. Battiato & E. Diserens, 2024. "Influence of Soil on the Traction Performance of a 65 kW MFWD Tractor," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 11(17), pages 1-11, April.
  • Handle: RePEc:ibn:jasjnl:v:11:y:2024:i:17:p:11
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    References listed on IDEAS

    as
    1. Andrea Battiato & Abdallah Alaoui & Etienne Diserens, 2015. "Impact of Normal and Shear Stresses Due to Wheel Slip on Hydrological Properties of an Agricultural Clay Loam: Experimental and New Computerized Approach," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 7(4), pages 1-1, March.
    2. Andrea Battiato & Etienne Diserens, 2013. "Influence of Tyre Inflation Pressure and Wheel Load on the Traction Performance of a 65 kW MFWD Tractor on a Cohesive Soil," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 5(8), pages 197-197, July.
    3. Vidas Damanauskas & Algirdas Janulevicius & Gediminas Pupinis, 2015. "Influence of Extra Weight and Tire Pressure on Fuel Consumption at Normal Tractor Slippage," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 7(2), pages 1-55, January.
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    1. Andrea Battiato & Abdallah Alaoui & Etienne Diserens, 2015. "Impact of Normal and Shear Stresses Due to Wheel Slip on Hydrological Properties of an Agricultural Clay Loam: Experimental and New Computerized Approach," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 7(4), pages 1-1, March.

    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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