South Ural State University, Chelyabinsk, Russia¹ ; South Ural Agrarian University, Troitsk, Russia²:

I. P. Troyanovskaya^1,2, Professor, Doctor of Engineering Sciences, tripav63@mail.ru

South Ural State University, Chelyabinsk, Russia:

A. V. Raznoshinskaya, Associate Professor, Candidate of Engineering Sciences
V. A. Kozminykh, Associate Professor, Candidate of Engineering Sciences

South Ural Agrarian University, Troitsk, Russia:

E. A. Leshchenko, Associate Professor, Candidate of Engineering Sciences

Ripper attachments should ensure destruction of firm, frozen or rocky soil. Industrial rippers have the ability to forcibly penetrate the working body into soil in contrast to agricultural tillage machines. The ripper attachments have two-sided force closure. The resultant forces acting on the working tool from the side of soil depend on such ripping parameters as ripping depth and angle. Currently, these dependences are mainly studied experimentally. The article presents the experimental results on the ripping resistance force as a case-study of a tractor-mounted dozer–ripper manufactured at the Chelyabinsk Tractor Plant. The scope of the experiment covers three ripping depths and eight angles. It has been experimentally found that the dependence of the ripping resistance force on each of these parameters is quadratic. The authors propose to study the ripping process using a complex parameter which is a product of the ripping depth and the ripping angle. The use of the complex parameter in the two-factor analysis allowed reducing the degree of the studied dependence while preserving the required accuracy. The complex parameter reflects the relationship between the design parameters of the ripper tooth, ripping depth and angle. The article shows that the vertical penetration resistance linearly depends on the horizontal traction resistance. The authors obtained this dependence for loam of medium density. The authors’ approach makes it possible undertake optimization of ripping process subject to soil type.

1. Pelevin L., Gorbatyuk I., Zaichenko S., Shalenko V. Developing a mathematical substantiation for the physical modeling of the soil ripping equipment work process. Vostochno-Evropeyskiy zhurnal peredovykh tekhnologiy. 2017. Vol. 6, No. 2(90). pp. 52–60.
2. Kamenev A. V. Frozen soil ripping. Nauchno-prakticheskie issledovaniya. 2020. No. 5-2(28). pp. 114–118.
3. McKyes E., Maswaure J. Effect of de sign parameters of flat tillage tools on loosening of a clay soil. Soil & Tillage Research. 1997. Vol. 43, Iss. 3-4. pp. 195–204.
4. Blednykh V. V., Svechnikov P. G., Troyanovskaya I. P. Tractor Plough with Repeated Cutting Angle on Working Elements. Procedia Engineering. 2017. Vol. 206. pp. 1577–1582.
5. Kapov S. N. Some theoretical problems of tillage. Current Challenges of Scientific and Technical Progress in Agribusiness Industry : Proceedings of XI International Conference. Stavropol : AGRUS, 2015. pp. 92–95.
6. Eskhozhin D., Nukeshev S., Eskhozhin K., Karaivanov D. Stress Distribution in Soil under Action of Paraplow Ripper. Life Science Journal. 2014. Vol. 11, Special issue 2. pp. 20–24.
7. Blednykh V. V., Svechnikov P. G., Troyanovskaya I. P. Moldboard Surfac e Universalization of the Ploughshare Operating Unit. Procedia Engineering. 2016. Vol. 150. pp. 1297–1302.
8. Semenova G. A., Dzhabborov N. I. Justification of design parameters of dynamic soil-cultivating working bodies. Innovatsii v selskom khozyaystve. 2018. Vol. 3(28). pp. 501–507.
9. Kurochkin Yu. B., Pozin B. M., Mitsyn G. P. Tractor attachments with two-sided force closure in optimized control process. Vestnik Chelyabinskogo agroinzhenernogo universiteta. 2001. Vol. 35. pp. 51–54.
10. Letopolsky A. B., Korchagin P. A., Teterina I. A. Working equipment of the single-bucket excavator for the development of frozen ground. IOP Conference Series: Materials Science and Engineering. 2020. Vol. 709, No. 4. 044027. DOI: 10.1088/1757-899X/709/4/044027
11. Kravets S. V., Stinio O. V. The determination of the force of blocked cuting of soil and coefficient of energy intensity of deep ripping of soil. Nauchnyi vestnik Natsionalnogo gornogo universiteta. 2016. No. 3. pp. 24–28.
12. Canarache A., Horn R., Colibas I. Compressibility of s oils in a long term field experiment with intensive deep ripping in Romania. Soil and Tillage Research. 2000. Vol. 56, Iss. 3-4. pp. 185–196.
13. Šarauskis E., Buragienė S., Romaneckas K., Masilionytė L., Kriaučiūnienė Z. et al. Deep, Shallow and No-Tillage Effects on Soil Compaction Parameters. Engineering for Rural Development. 2014. Vol. 13. pp. 31–36.
14. Shmulevich I., Asaf Z., Rubinstein D. Interaction between soil and a wide cutting blade using the discrete element method. Soil and Ti llage Research. 2007. Vol. 97, Iss. 1. pp. 37–50.
15. Asaf Z., Rubinstein D., Shmulevich I. Determination of discrete element model parameters required for soil tillage. Soil and Tillage Research. 2007. Vol. 92, Iss. 1-2. pp. 227–242.
16. Basarir H. H., Karpuz C. C., Tutluo-lu L. L. 3D Modeling of Ripping Process. International Journal of Geomechanics. 2008. Vol. 8, Iss. 1. pp. 11–19.
17. Mitsyn G. P., Pozin B. M., Troyanovskaya I. P., Naradovyi D. I., Privalov A. A. Some regular patterns of soil loosening by tractor ripper (experimental results). Problems of Motor Road Design, Construction and Operation: Collection of Scientific Papers. Moscow, 2001. pp. 226–229.
18. Mitsyn G. P. Improving tractor unit efficiency by redesign of attachment systems : Dissertation of Candidate of Engineering Sciences. Chelyabinsk, 2002. 146 p.
19. Al-Suhaibani S. A., Ghaly A. E. Effect of Plowing Depth of Tillage and Forward Speed on the Performance of a Medium Size Chisel Plow Operating in a Sandy Soil. American Journal of Agricultural and Biological Sciences. 2010. Vol. 5, Iss. 3. pp. 247–255.
20. Balovnev V. I., Serdobov V. B., Somov A. B., Danilov R. G. Dynamic stabilization of soil ripping depth by single pillar rippers. Nauka i tekhnika v dorozhnoy otrasli. 2020. No. 1(91). pp. 42–43.
21. Tong J., Moayad B. Z. Effects of rake angle of chisel plough on soil cutting factors and power requirements: A computer simulation. Soil and Tillage Research. 2006. Vol. 88, Iss. 1-2. pp. 55–64.
22. Kalimbetov B., Kalymbetov B., Kenzhibayeva G., Karmanov D., Tukhtakuziyev A., Kablan B. Justification parameters of the ripper tooth of combined unit for minimum tillage. EurAsian Journal of BioSciences. 2019. Vol. 13, Iss. 1. pp. 341–347.
23. Blednykh V. V., Svechnikov P. G., Troyanovskaya I. P. Moldboard Surface Universalization of the Ploughshare Operating Unit. Procedia Engineering. 2016. Vol. 150 . pp. 1297–1302.
24. Marsova E. V., Dzhabrailov Kh. A. Development of an automatic system for the soil tillage mode adjustment using a vibrating tillage tool. Vestnik Moskovskogo avtomobile-dorozhnogo gosudarstvennogo tekhnicheskogo universiteta (MADI). 2018. No. 3(54). pp. 61–66.