Authors: V.O. Gutarevich, E.L Ignatkina

Title of the article: Reduction of dynamic loads in the rolling stock couplings of mine suspended monorail roads occurring during brakin

Year: 2021, Issue: 1, Pages: 33-38

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 622.625.6

DOI: 10.26730/1816-4528-2021-1-33-38

Abstract: The article considers problems of braking of mine suspension monorail roads. Have been established oscillatory processes occurring during braking, which lead to the appearance of dynamic loads affecting the coupling of rolling stock, monorail, its suspension, and, consequently, the support of the mine. In this case, amplitudes of vibrations of dynamic loads during braking can significantly exceed the forces arising in eliminated mode of motion. Based on this, reduction of these loads is an urgent task. The purpose of the article is to develop recommendations for reducing dynamic loads generated during the braking of the rolling stock of a mine suspension monorail. A mathematical model of rolling stock braking is investigated, which considers the clearances in the couplings. Dependences are revealed that describe the braking process of rolling stock on suspended monorail and analysis of motion parameters for different values of coupling stiffness and damping coefficients, as well as the gaps in the couplings arising in the joints, is carried out. Based on results of analysis, approaches are proposed to improve brake carts of mine suspended monorail roads and expediency of using a brake system distributed along the length of the rolling stock is justified, which will increase safety of monorail transport operation.

Key words: monorail rolling stock suspended monorail oscillatory process dynamic load

Receiving date: 12.12.2020

Publication date: 29.04.2021

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