Razzakov Kyrgyz State Technical University (Bishkek, Kyrgyzstan)

A. P. Muslimov, Doctor of Engineering Sciences, Professor
V. O. Tashtanbaeva, Senior Lecturer, Candidate of Engineering Sciences, tashtanbaeva@kstu.kg

This article addresses a critically important scientific and technical challenge: enhancement of industrial safety and operational reliability of mine hoist installations (MHI). The relevance of this study is driven by the urgent need to prevent emergency situations associated with rope breakage and the exceedance of permissible dynamic loads in deep mines. The research objective is to develop and theoretically substantiate a real-time automatic rope tension control system. The authors propose a concept for a monitoring and measurement system based on the magnetoelastic effect, which enables conversion of the mechanical stresses in the rope metal into an electrical signal by monitoring changes in magnetic permeability. During the study, a mathematical model of the hoist electric drive dynamics, described by a firstorder differential equation, was developed, and an analytical solution for the transient process of the drum angular velocity was obtained. Furthermore, a mathematical model describing the elastic deformation of the rope in the dynamic mode was established and represented by a second-order differential equation. The resulting analytical solutions for the transient processes of the drum angular velocity and the magnitude of linear deformation allow identification of critical points where peak loads occur during startup and braking. The scientific novelty of the research lies in the validation of the triggering conditions for the magnetoelastic sensor to activate emergency braking systems upon reaching the material’s yield point. The practical significance of the work is confirmed by the feasibility of integrating the developed algorithms into modern MHI control systems to minimize the risks of industrial disasters and reduce equipment wear. The presented mathematical modeling results can be utilized by design organizations when calculating mass-geometric, operational and dynamic safety parameters for hoisting facilities.

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