Fatigue Analysis of Spike Segment of Special Tractor Wheels in Terms of Design Improvement for Chernozem Soil

Rudolf Abrahám, Radoslav Majdan, Katarína Kollárová, Zdenko Tkáč, Štefan Hajdu, Ľubomír Kubík and Soňa Masarovičová
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Rudolf Abrahám: Institute of Agricultural Engineering, Transport and Bioenergetics, Faculty of Engineering, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
Radoslav Majdan: Institute of Agricultural Engineering, Transport and Bioenergetics, Faculty of Engineering, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
Katarína Kollárová: Information and Coordination Centre of Research, Faculty of Engineering, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
Zdenko Tkáč: Institute of Agricultural Engineering, Transport and Bioenergetics, Faculty of Engineering, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
Štefan Hajdu: Institute of Design and Engineering Technologies, Faculty of Engineering, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
Ľubomír Kubík: Institute of Electrical Engineering, Automation, Informatics and Physics, Faculty of Engineering, Slovak University of Agriculture in Nitra, 949 76 Nitra, Slovakia
Soňa Masarovičová: Department of Geotechnics, Faculty of Civil Engineering, University of Žilina, 010 26 Žilina, Slovakia

Agriculture, 2022, vol. 12, issue 4, 1-17

Abstract: The driving wheels affect the tractive efficiency, fuel consumption, and soil compaction. This study presents the fatigue analysis of a spike segment that is the main part of an innovative driving wheels designed to improve tractor tractive performance. The design improvement was proposed for Chernozem soil allowing the full penetration of spikes. The spike segment was loaded by forces resulting from the maximum drawbar pull at 100% wheel slip and penetrometer resistance. A drawbar pull increase caused by the spike tires was also calculated. The experiments were performed using a subcompact tractor in the first gear on a grass field at soil moisture 18.8%. Gerber theory was used for the fatigue analysis performed using ANSYS software. The dependances of the safety factor on the horizontal rod diameter and the number of load cycles was constructed. The safety factor of 1.73 calculated for the spike segment made of steel S355 is suitable for the reduction of the actual horizontal rod diameter (12 mm). The fatigue analysis showed a safety factor of 1.28 at 100,000 load cycles in the case of a reduced diameter (10 mm). A diameter of 8 mm was also simulated, but the calculated safety factors do not allow it in terms of safe operation.

Keywords: tractor; alternating stress; wheel slip; drawbar pull; tire (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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