GROUND LOADING BY TRACKS OF TRACK MACHINES: REVIEW OF DESIGN SCHEMES

The results of investigations in the field of existing soil loading schemes by tracks of tracked vehicles and their effect on the traction force realized by a caterpillar propulsion device are presented. The review shows that most researchers emphasize the important role of lugs in the creation of tractive effort. However, most of the existing methods of calculating the traction force on the clutch are based on one or another specific design scheme that does not depend on the loads acting on the tracks, on the combination of the parameters of the grousers and on the physical and mechanical properties of the soil. The use of these methods does not allow us to consider the sequence and alternative variants of soil disruption, and also to establish
a relationship between the magnitude of the tangential force acting on the tract with a wide range of combinations of geometric parameters of the grousers, and to link it to the physical processes taking place in the soil. Consequently, these methods do not fully describe the interaction of the crawler tracks with the ground, which makes it difficult to use them to optimize the geometric parameters of the lugs. The authors proposed an analytical method for analyzing the interaction of soil with a track of a caterpillar engine based on the regularities of the theory of the limiting state of ground masses and the main provisions used in the theory of cutting soil, taking into account the revealed features of this interaction, which makes it possible to investigate the interaction of tracks of a caterpillar propulsion with soil, taking into account the multiphase and alternative options for the destruction of soil between the grousers. This method allows you to choose the parameters of the lugs, providing an improvement in traction and coupling properties of crawler tractors. 

1. Ksenevich I. P., Lyasko M. I. Running system – soil – harvest. Moscow, Agropromizdat Publ., 1985. 304 p. (in Russian).

2. Skotnikov V. A. Investigation of the patency of crawler marsh tractors. Minsk, Vysshaya shkola Publ., 1964. 19 p. (in Russian).

3. Opeiko F. A. Wheel and caterpillar drive. Minsk, Academy of Agricultural Sciences of the BSSR, 1960. 228 p. (in Russian).

4. Opeiko F. A. The most favorable pressure distribution to the ground at different positions of the center of pressure of a tracked tractor. Questions of agricultural mechanics. Minsk, 1962, vol. 8, pp. 169–188 (in Russian).

5. Skotnikov V. A., Ponomarev A. V., Klimanov A. V. Vehicle penetration. Minsk, Nauka i tekhnika Publ., 1982. 328 p. (in Russian).

6. Skotnikov V. A., Mashchenskii A. A., Solonskii A. S. Fundamentals of the theory and calculation of a tractor and a car. Moscow, Agropromizdat Publ., 1986. 383 p. (in Russian).

7. Tercagi K. I. Building mechanics of soil. Moscow, Gosstroiizdat Publ., 1933. 123 p. (in Russian).

8. Ornatskii N. V. Soil mechanics. Moscow, Moscow State University, 1962. 186 p. (in Russian).

9. Bekker M. G. Introduction to the theory of local-machine systems. Moscow, Mashinostroenie Publ., 1973. 520 p. (in Russian).

10. Vasil'ev A. V., Dokuchaeva E. N., Utkin-Lyubovcov O. L. Influence of design parameters of a caterpillar tractor on its traction-coupling properties. Moscow, Mashinostroenie Publ., 1969. 192 p. (in Russian).

11. Macepuro M. E., Yanushkevich B. N. Questions of agricultural mechanics. Minsk, Vysheishaya shkola Publ., 1965. 132 p. (in Russian).

12. Zelenin A. N. Cutting of soils. Moscow, Academy of Sciences of USSR, 1959. 256 p. (in Russian).

13. Ageikin Ya. S. All-wheel drive and combined propellers. Moscow, Mashinostroenie Publ., 1972. 234 p. (in Russian).

14. Antonov A. S. The theory of caterpillar propulsion. Moscow, Mashgiz Publ., 1949. 214 p. (in Russian).

15. Borodachev I. P., Yarkin A. A. Crawler and wheel tractors and tractors as basic machines for bulldozers. Moscow, TsBTI VNIIstroydormash Publ., 1959. 76 p. (in Russian).

16. Volchka L. Ya. Tractors. Minsk, Vysheishaya shkola Publ., 1977. 413 p. (in Russian).

17. Gus’kov V. V. Optimal parameters of agricultural tractors. Moscow, Mashinostroenie Publ., 1966. 196 p. (in Russian).

18. Zabavnikov N. A. The fundamentals of the theory of transport caterpillar vehicles. Moscow, Mashinostroenie Publ., 1975. 448 p. (in Russian).

19. Karel’skih D. K., Kristi M. K. Theory, design and calculation of tractors. Leningrad, Mashgiz Publ., 1940. 520 p. (in Russian).

20. Ksenevich I. P., Gus’kov V. V., Bocharov N. F. Tractors. Design, construction and calculation. Moscow, Mashinostroenie Publ., 1991. 544 p. (in Russian).

21. Medvedev M. I. The theory of caterpillar systems. Moscow, Mashgiz Publ., 1934. 194 p. (in Russian).

22. Nosov N. A., Galyshev V. D., Harchenko A. P. Calculation and design of caterpillar machines. Leningrad, Mashinostroenie Publ., 1972. 560 p. (in Russian).

23. Rubenchik E. V., Stolyarov V. M. Tests of DT-75B tractor with tracks with different steps. Puti snizheniya udel'nogo davleniya hodovyh sistem gusenichnyh sel'skohozyajstvennyh traktorov na pochvu [Ways to reduce the specific pressure of running systems of caterpillar agricultural tractors on soil]. Moscow, Central Scientific Research Institute for Information and Techno-Economic Research on Tractor and Agricultural Machinery, 1979, iss. 7, pp. 17–21 (in Russian).

24. Lyasko M. I., Kutin L. N., Shchupak P. L. Test of DT-75C tractor with increased track caterpillar. Puti snizheniya udel'nogo davleniya hodovyh sistem gusenichnyh sel'skohozyajstvennyh traktorov na pochvu [Ways to reduce the specific pressure of running systems of caterpillar agricultural tractors on soil]. Moscow, Central Scientific Research Institute for Information and Techno-Economic Research on Tractor and Agricultural Machinery, 1979, iss. 7, pp. 22–31 (in Russian).

25. Lyasko M. I. Investigation of the influence of some design parameters on the traction-coupling properties of a crawler tractor with earth-moving equipment. Moscow, Moscow Automobile and Road Institute, 1971. 17 p. (in Russian).

26. Denisov A. B. Investigation of the influence of some design parameters of the track on traction and coupling properties of an agricultural tractor. Moscow, Research Tractor Institute, 1982. 25 p. (in Russian).

27. Bekker M. G. Off-the-Road Locomotion: Research and Development in Terramechanics. Michigan, University of Michigan Press, 1960. 400 p.

28. Bekker M. G. Theory of land locomotion. Michigan, University of Michigan Press, 1962. 263 р. https://doi.org/10.3998/mpub.9690401

29. Zelenin A. N. Destruction of frozen soils by cutting, impact and vibration. Moscow, Central Institute of Scientific and Technical Information on Automation and Mechanical Engineering, 1962. 42 p. (in Russian).

30. Cytovich, N. A. Soil mechanics. Moscow, Gosstroiizdat Publ., 1963. 636 p. (in Russian).

31. Alyab’ev A. F., Kalinin S. Yu. Model of interaction of a tractor caterpillar with a ground. Lesnoj vestnik = Forestry Bulletin, 2016, vol. 20, no. 2, pp. 173–178 (in Russian).

32. Sokolovskij V. V. Static of the granular medium. Moscow, Gostekhizdat Publ., 1965. 274 p. (in Russian).

33. Artem’ev K. A. Theory of cutting soils by excavating machines: a tutorial. Novosibirsk, Novosibirsk University Publ., 1978. 104 p. (in Russian).

34. Berestov E. I. Passive ground pressure on broken retaining walls. Part 1. Vestsі Akademіі navuk Belarusі. Seryya fіzіka-tekhnіchnykh navuk = Proceedings of the Academy of Sciences of Belarus. Physical-technical series, 1996, no. 1, pp. 47–54 (in Russian).

35. Berestov E. I. Passive ground pressure on broken retaining walls. Part 2. Vestsі Akademіі navuk Belarusі. Seryya fіzіka-tekhnіchnykh navuk = Proceedings of the Academy of Sciences of Belarus. Physical-technical series, 1997, no. 2, pp. 60–71 (in Russian).

36. Berestov E. I. Limit equilibrium in the soil massif. Problemy kachestva i nadezhnosti mashin: materialy resp. nauch.-tekhn. konf,. Mogilev, 17–18 apr. 1994 g. Ch. 2 [Problems of quality and reliability of machines: materials rep. scientific-techn. conf., Mogilev, 17–18 apr. 1994 g. Part 2]. Mogilev, 1994, pp. 74 (in Russian).

37. Berestov E. I. Resistance to cutting soil. Izvestiya vysshikh uchebnykh zavedenii. Stroitel’stvo = News of higher educational institutions. Construction, 1997, no. 10, pp. 102–107 (in Russian).

38. Barskii I. B. Design and calculation of tractors. Moscow, Mashinostroenie Publ., 1968. 375 p. (in Russian).

39. Berestov E. I., Kulabuhov A. V. About increase of coupling of engines of caterpillar cars with a ground. Stroitel’nye i dorozhnye mashiny = Construction and Road Building Machinery, 2010, no. 5, pp. 50–56 (in Russian).