Authors: V.V. Aksenov, V.Yu. Sadovets, D.A. Pashkov

Title of the article: Justification of value of the loads applied to the face for simulation of tools and rocks interaction

Year: 2018, Issue: 1, Pages: 11-18

Branch of knowledge: MINING AND GEOTECHNICAL ENGINEERING

Index UDK: 622.646

DOI: 10.26730/2618-7434-2018-1-11-18

Abstract: The article justifies the value of the loads applied to the face in modeling the interaction between the tool and the rock. The analysis of existing exec-utive bodies, applied in mining, construction and municipal engineering, is presented. An approach to solving an applied problem by the finite element method is presented. In particular, a study was conducted on the possibility of replacing the load simulating the interaction of the rock with each cutter of the executive body, taking into account the dialing scheme and the angle of rotation of the executive body relative to its axis. The effective load is represented in the form of equivalent distributed normal and tangential loads applied to the tool contact surface with the face. To establish the pur-pose and objectives of the study, the total force effect of the executive body on the rock massif is justified. The parameters on which the total force in-fluence of the executive body depends are determined. The tangential pro-jection of the equivalent distributed load is provided by the engine power and the normal projection is provided by the head force on the executive body. To determine the specific values of distributed loads for the proto-type, a bar setting ETC-2086, mounted on the base of MTZ-82 tractor, was adopted. Based on the study, the values of equivalent distributed normal and tangential loads are determined for the development of a model for interac-tion between the tool of the executive body of the geokhod and the rock.

Key words: face geokhod cut-ting tool modeling finite ele-ment method

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