Yan Yunpeng, Helmons Rudy, Schott Dingena
Department of Maritime and Transport Technology, Delft University of Technology, 2628 CD Delft, The Netherlands.
Department of Mineral Production & HSE, Norwegian University of Science and Technology, 7031 Trondheim, Norway.
Materials (Basel). 2022 Feb 28;15(5):1813. doi: 10.3390/ma15051813.
The pin-on-disc test is a standard sliding wear test used to analyse sliding properties, including wear contour and wear volume. In this study, long-term laboratory test performance is compared with a short-term numerical model. A discrete element method (DEM) approach combined with an Archard wear model and a deformable geometry technique is used. The effect of mesh size on wear results is evaluated, and a scaling factor is defined to relate the number of revolutions between the experiment and the numerical model. The simulation results indicate that the mesh size of the disc has a significant effect on the wear contour. The wear depth and wear width follow a normal distribution after experiencing a run-in phase, while the wear volume has a quadratic relation with the number of revolutions. For the studied material combination, the calibration of the wear coefficient shows that the wear volume of the pin-on-disc test accurately matches the simulation results for a minimum of eight revolutions with a wear coefficient lower than 2 × 10 Pa.
销盘试验是一种标准的滑动磨损试验，用于分析滑动特性，包括磨损轮廓和磨损体积。在本研究中，将长期实验室测试性能与短期数值模型进行了比较。采用了结合阿查德磨损模型和可变形几何技术的离散元法（DEM）。评估了网格尺寸对磨损结果的影响，并定义了一个比例因子来关联实验和数值模型之间的转数。模拟结果表明，盘的网格尺寸对磨损轮廓有显著影响。在经历磨合阶段后，磨损深度和磨损宽度呈正态分布，而磨损体积与转数呈二次关系。对于所研究的材料组合，磨损系数的校准表明，对于磨损系数低于2×10 Pa的情况，销盘试验的磨损体积至少在八转时与模拟结果精确匹配。
