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Calculation Methodology of Energy and Dynamic Parameters of the Stump Lowering Device and Cutting Conditions of Its Working Member

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S.N. Orlovskiy, A.I. Karnaukhov

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UDС

630.7.674

DOI:

10.17238/issn0536-1036.2017.4.106

Abstract

Substantiation of energy and dynamic parameters of a stump lowering device during the reforestation process is a priority. Calculation of optimum design parameters of a milling working member of the unit and its operating modes is also important. The goal of theoretical research is to justify the possibilities of overloads overcoming when the working member meets a stump due to the kinetic energy of rotating masses of the engine, transmission and cutter; determination of optimal energy and dynamic parameters of the unit; theoretical analysis of the stump crushing process by a milling working member that allows solving the problem of optimizing the design and geometric parameters of the working member, its operating modes by the minimum criterion of the energy intensity. The research program provides the study of the possibility of overload overcoming by selecting the optimum values of the rotational speed of the working member, engine power, inertia moment of the unit, speed of its movement according to the criterion of the permissible load factor of the tractor engine. Also we have studied the rational cutting conditions and the angles of cutters setting by the criterion of minimum energy intensity. The research is carried out theoretically on the basis of the computer programs Dina 2 and Freza_n created by the authors, which allow us to substantiate the parameters of the unit and its working body at the design stage. On the basis of the obtained results we can substantiate the design and structure of the tractor forestry unit for stump lowering with a working member in the
form of a front-mounted milling cutter and determine its power and dynamic parameters. This will increase the labor productivity and reduce operator’s fatigue.

Authors

S.N. Orlovskiy1, Candidate of Engineering Sciences, Associate Professor A.I. Karnaukhov2, Candidate of Engineering Sciences, Associate Professor

Affiliation

1Krasnoyarsk State Agrarian University, pr. Mira, 90, Krasnoyarsk, 660049, Russian Federation; e-mail: orlovskiysergey@mail.ru2Siberian State Aerospace University named after academician M.F. Reshetnev, pr. Mira, 82, Krasnoyarsk, 660049, Russian Federation; e-mail: Sky_angel_33@mail.ru

Keywords

stump lowering, dynamic parameter, cutting, throwing the cutting product off, optimization.

For citation

Orlovskiy S.N., Karnaukhov A.I. Calculation Methodology of Energy and Dy-namic Parameters of the Stump Lowering Device and Cutting Conditions of Its Working Member. Lesnoy zhurnal [Forestry journal], 2017, no. 4, pp. 106–115. 10.17238/ issn0536-1036.2017.4.106

References

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Received on January 23, 2017

Calculation Methodology of Energy and Dynamic Parameters of the Stump Lowering Device and Cutting Conditions of Its Working Member

 

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