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DOI: 10.15507/2658-4123.029.201904.578-593
Equilibrium Conditions of Agricultural Machines for Main Tillage
Igor V. Bozhko
Researcher of Field Mechanization Laboratory of Plant Production Mechanization Department, State Scientific Establishment “Agricultural Research Center “Donskoy” (3 Nauchnyy Gorodok, Zernograd 347740, Russia), Ph.D. (Engineering), ResearcherID: E-9518-2016, ORCID: https://orcid.org/0000-0002-8423-4079, ScopusID: 57204682997, This email address is being protected from spambots. You need JavaScript enabled to view it.
Galina G. Parkhomenko
Leading Researcher of Field Mechanization Laboratory of Plant Production Mechanization Department, State Scientific Establishment “Agricultural Research Center “Donskoy” (3 Nauchnyy Gorodok, Zernograd 347740, Russia), Ph.D. (Engineering), ResearcherID: D-2633-2019, ORCID: https://orcid.org/0000-0003-1944-216X, This email address is being protected from spambots. You need JavaScript enabled to view it.
Sergey I. Kambulov
Senior Researcher of Field Mechanization Laboratory of Plant Production Mechanization Department, State Scientific Establishment “Agricultural Research Center “Donskoy” (3 Nauchnyy Gorodok, Zernograd 347740, Russia), D.Sc. (Engineering), ResearcherID: A-6156-2019, ORCID: https://orcid.org/0000-0001-8712-1478, ScopusID: 57207655797, This email address is being protected from spambots. You need JavaScript enabled to view it.
Introduction. The use of the equations of statistics and dynamics is insufficient to solve the problem of equilibrium of agricultural aggregates, and additional efforts are required that in turn significantly increases the complexity of relevant research. Known studies are characterized by the fact that when analyzing the stability of the tillage machine, on the basis of the equilibrium condition, a standard plow body is considered as a working body.
Materials and Methods. In this study, a variety of methods was used to determine equilibrium conditions for a system of converging forces in an analytical or geometric form. The equilibrium conditions were determined for the mounted five-case combined machine made soilless tillage. Analytical determination of the equilibrium conditions for the system was through the preparation of equilibrium equations. A graphical definition of the equilibrium conditions was obtained by constructing power polygons for vertical and horizontal projection planes.
Results. As a result, it was found that tillage machines have an excessive number of bonds (supports). There is defined a condition for the balance of forces acting on a tillage machine with working bodies for layer-by-layer subsurface tillage, having twelve connections: five field boards with two connections each and two support wheels one at a time, the perceivable responses from the interaction with which should be positive.
Discussion and Conclusion. According to the results, it is noteworthy that modern agricultural machines are multi-operation statically indeterminate systems. As a result, the process of their regulation during operation is complicated and it is practically impossible to make power calculations without accepting additional conditions. For simplification, accuracy and most visual representations, the problem was solved by analyzing closed force polygons, the construction method of which is presented for both the equilibrium conditions in horizontal and vertical planes.
Keywords: equilibrium conditions, tillage machine, analytical method, graphical method, arable horizon
Funding: The work was carried out within the framework of research and development with financial support from the state budget.
Acknowledgements: The authors would like to thank anonymous reviewers.
For citation: Bozhko I.V., Parkhomenko G.G., Kambulov S.I. Equilibrium Conditions of Agricultural Machines for Main Tillage. Inzhenernyye tekhnologii i sistemy = Engineering Technologies and Systems. 2019; 29(4):578-593. DOI: https://doi.org/10.15507/2658-4123.029.201904.578-593
Contribution of the authors: I. V. Bozhko – problem statement, research methodology developing, collecting and analyzing analytical and practical materials on the research topic, critical analysis and finalizing the solution; G. G. Parkhomenko – problem statement, analysis of scientific sources on the topic of research, critical analysis and revision of the text; S. I. Kambulov – scientific guidance, problem statement, critical analysis and finalizing the solution.
All authors have read and approved the final manuscript.
Received 27.03.2019; revised 18.04.2019; published online 31.12.2019
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