Currently, there are limited publicly available crushing test data for the eccentric roll crushers, and their performance on hard ores is unknown. During the crushing process, the roll body of the eccentric roll crusher rotates in the opposite direction under the influence of crushing forces, which aims to reduce wear on the roll surface. However, owing to the complexity of the motion relationships, the mechanical behaviour of the roll body cannot be accurately simulated by the discrete element method (DEM) alone. To address this issue, a coupled discrete element method (DEM)-multibody dynamics (MBD) simulation method considering the kinematic properties of the rolling body is proposed. A qualitative and quantitative comparison between the simulation process and experimental results reveals a maximum relative error of 16.0%, thereby validating the accuracy of the method.

中文翻译：

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实验实验室规模偏心辊式破碎机的性能分析与初步 DEM-MBD 耦合仿真方法验证

目前，偏心辊式破碎机的公开破碎测试数据有限，其在硬矿石上的性能尚不清楚。在破碎过程中，偏心辊式破碎机的辊体在破碎力的作用下向相反方向旋转，目的是减少辊子表面的磨损。然而，由于运动关系的复杂性，仅靠离散元法 （DEM） 无法准确模拟辊体的机械行为。针对这一问题，该文提出一种考虑滚动体运动学特性的离散元耦合法（DEM）-多体动力学（MBD）仿真方法。仿真过程与实验结果进行定性和定量比较，发现最大相对误差为 16.0%，验证了该方法的准确性。