Determination of the tractive forces of a tractor based on the reconstruction of tire – soil contact surface obtained by means of photogrammetry
Fragment książki (Rozdział monografii pokonferencyjnej)
MNiSW
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spoza wykazu
| Status: | |
| Autorzy: | Śliczniak Tomasz, Pytka Jarosław, Gardyński Leszek, Czajka Aleksander, Tarkowski Sławomir |
| Dyscypliny: | |
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| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Strony: | 114 - 120 |
| Efekt badań statutowych | NIE |
| Finansowanie: | This work was prepared within the project KONF/SP/0330/2023/1 entitled “16th European-African Regional Conference of the ISTVS”, financed by the Ministry of Education and Science (Poland) as a part of the Doskonała Nauka II Programme. |
| Materiał konferencyjny: | TAK |
| Nazwa konferencji: | 16th European-African Regional Conference of the ISTVS |
| Skrócona nazwa konferencji: | 16th EARC ISTVS 2023 |
| URL serii konferencji: | LINK |
| Termin konferencji: | 11 października 2023 do 13 października 2023 |
| Miasto konferencji: | Lublin |
| Państwo konferencji: | POLSKA |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The aim of the work was to develop a method for determining tractive forces based on a three-dimensional reconstruction of the tire - soil contact surface. The photogrammetry method was used to reconstruct the contact surface between the tractor tire and the soil, further the traction forces were determined using the Bekker model. The value of the contact pressure was determined on the basis of the three-dimensional model of the contact surface. The tow test method was used to measure traction forces as part of verification tests. Field measurements were carried out for different wheel load values, on two soils, sandy and loamy, at different moisture. It was found that the obtained values of the drawbar pull force, determined analytically using photogrammetry, show small discrepancies in relation to the values measured in field tests using a dynamometer. In the case of loamy soil, it was noticed that with increasing moisture, the sinkage of the wheel (rut depth) as well as the horizontal displacement of the soil was smaller. By analyzing the obtained 3D tire - soil interfaces, cracks on the soil surface were identified, resulting from the mechanism of soil tension under vertical load. It was discovered that these cracks in sandy soil were bigger (of greater width) than in clay soil. Their width has been correlated with net traction force generated during test rides. It was found that in the case of sandy soil, the obtained relationships were increasing (the larger the crack, the higher the net traction value), while for clay soil, they were decreasing. Further research may include development of a tire-soil interaction model, taking into account the mechanism of cracks formation as a result of soil tension. |
