The use of asymmetrical disc tools for the mining of hard and very hard rocks is a promising direction for developing mechanical mining methods. A significant obstacle in developing mining methods with the use of asymmetric disc tools is the lack of adequate computational methods. A deep understanding of rock–tool interaction can develop industrial applications of asymmetric disc tools significantly. The fundamental problem in designing work systems with asymmetric disc tools is the lack of adequate analytical models to identify tool loads during the mining process. One reasonable approach is to use computer simulation. The purpose of the research was to develop a simulation model of rock cutting using an asymmetrical disc tool and then evaluate the developed model. In the article, the Discrete-Element Method (DEM) in LS-Dyna was adopted to simulate rock cutting with asymmetrical disc tools. Numerical tests were conducted by pushing the disc into a rock sample at a given distance from the sample edge until the material was detached entirely. Two types of rock samples were used in the simulation tests: concrete and sandstone. The independent variables in the study were the disc diameter and the cut spacing. To validate the simulation model, analogous laboratory tests were carried out. The article presents a comparison of the results of simulation and laboratory tests. The given comparison showed good accordance LS-Dyna model with the experimental studies. The proposed test results can be input data for developing simulation models on a larger scale. Thus, it will be possible to consider the complex kinematics of the dynamics of the rock-mining process with disc tools using the DEM simulation.

使用非对称圆盘工具开采坚硬和非常坚硬的岩石是发展机械开采方法的一个有前途的方向。使用非对称圆盘工具开发采矿方法的一个重大障碍是缺乏足够的计算方法。对岩石-工具相互作用的深入理解可以显着开发非对称圆盘工具的工业应用。使用非对称圆盘工具设计工作系统的基本问题是缺乏足够的分析模型来识别采矿过程中的工具负载。一种合理的方法是使用计算机模拟。研究的目的是开发使用非对称圆盘刀具进行岩石切割的模拟模型，然后评估开发的模型。在文章中，采用 LS-Dyna 中的离散元方法 (DEM) 来模拟非对称圆盘刀具的岩石切割。数值测试是通过将圆盘推入距样品边缘给定距离的岩石样品中直到材料完全分离来进行的。模拟试验中使用了两种岩石样品：混凝土和砂岩。研究中的自变量是圆盘直径和切割间距。为了验证仿真模型，进行了类似的实验室测试。本文介绍了模拟和实验室测试结果的比较。给出的比较表明 LS-Dyna 模型与实验研究具有良好的一致性。建议的测试结果可以作为输入数据，用于开发更大规模的模拟模型。因此，