Improving the performance of a ploughing tractor by means of an auxiliary carriage with motorized axle


The article describes the analysis of results from field tests on ploughing units based on a modular draft device (MDD). This device is named MDD-100 and consists of an energy module and a technological module. The energy module is a universal tractor with a rated draft resistance of 16 kN. The technological module is an additional axle, equipped with an active wheel drive, a threepoint hitch linkage, and a saddle-type semi-trailer. During the working process, the draft resistance of the energy and the technological modules of the MDD-100 add up. As a result, the draft resistance of the latter may reach 26 kN, and more. This allows the MDD-100 to be classified as a draft device in traction class 3 and be used with agricultural machines with a large working width. The MDD-100 was tested with a five-bottom mounted plough with a working width of 1.75 m and a draft resistance of 24-28 kN. The best option for driving the MDD-100 with a plough was its movement with the right-side wheels in the furrow. The draft resistance of the plough would decrease by 12.0%, if the option of the MDD-100 outside the furrow is used. This ensured a 12.8% reduction in the skidding of the MDD-100 wheels and a 13.1% decrease of fuel consumption for the ploughing unit. Compared to a 4WD tractor, the use of a modular draft device with a 6WD wheel arrangement offered a greater stability of the ploughing depth.



PlumX Metrics


Download data is not yet available.


Beloousov B., Ksenevich T.I., Vantsevich V., Komissarov D. 2013. 8×8 Platform for studing terrain mobility and traction performance of unmanned articulated ground vehicles with steered wheels. SAE Techn. Paper Series 1-17. Available from: DOI:

Bulgakov V., Kyurchev V., Nadykto V., Beloev H., Mitev G. 2016. Development of structures and results of experimental studies of the new modular power unit. Mech. Agric. 3:25-9.

Bulgakov V., Kyurchev V., Nadykto V., Olt J. 2015. Structure development and results of testing a novel modular power unit. Agric. Agric. Sci. Procedia 7:40-4. DOI:

Kutkov G. 2004. Tractors and automobiles. Theory and technological properties. Kolos, Moscow, Russia [in Russian].

Lur’e A. 1970. Statistical dynamics of agricultural sets. Kolos, Moscow, Russia [in Russian].

Nadykto V. 2003. The foundations of modular energetic devices applying. Melitopol: KP "MMD" [in Russian].

Nadykto V., Kotov O. 2015. Method for determining soil bulk density (Sposib viznachennya shchilnosti gruntu). Patent of Ukraine UA 97828, G 01N 1/00. [in Ukrainian].

Pădureanu V., Lupu M.I., Canja C.M. 2013. Theoretical research to improve traction performance of wheeled tractors by using a supplementary driven axle. Comput. Mechan. Virtual Engine. Braşov, Romania, 410-5.

Simikić M., Dedović N., Savin L., Tomić M., Ponjičan O. 2014. Power delivery efficiency of a wheeled tractor at oblique drawbar force. Soil Tillage Res. 141:32-43. DOI:

Simikić M., Dedović N., Savin L., Tomić M., Silleli H.H., Ponjičan O. 2012. Influence of eccentric drawbar force on power delivery efficiency of a wheeled tractor. Turkish J. Agric. Forest. 36:486-500.

Stjelja Z. 2002. Utilization quality of rubber belted tractors with reference to the improvement of tractive performance. University of Novi Sad, Faculty of Agriculture.

Original Articles
Energy module, modular draft device (MDD), plough, tractor.
  • Abstract views: 178

  • PDF: 80
  • HTML: 0
How to Cite
Bulgakov, V., Nadykto, V., Ivanovs, S., & Dukulis, I. (2021). Improving the performance of a ploughing tractor by means of an auxiliary carriage with motorized axle. Journal of Agricultural Engineering, 52(1).

Most read articles by the same author(s)