Numerical Studies of the Dynamics of the Roadheader Equipped with an Automatic Control System during Cutting of Rocks with Different Mechanical Properties

The process of cutting rocks with a boom-type roadheader results in extreme dynamic loads and vibrations. Mining, especially the case hard rocks, is associated large energy consumption, which, when combined low efficiency, can lead to drilling performance. These phenomena are undesirable because excessive load leads machine durability, as well deterioration work conditions safety. Low mining efficiency affects economics works conducted using roadheaders. However, these adverse effects be minimized by optimizing process, thanks automatic control roadheader. present article discusses concept roadheader’s heads movement. Based on previously computer investigations, it was assumed that reducing consumption improving state (objective functions) possible only controlling three four parameters characterizing process: angular speed heads, boom swinging speed, cut height. web workability rock treated variables stochastic nature. This paper presents selected tests during simulated different uniaxial compressive strengths (UCS) manual mode. In addition, studied behavior variable workability, which typical excavations layered mass. mode were compared assess effectiveness adopted strategy. It found algorithm developed for heads’ movement allows up half Furthermore, improve machine.