Ting Chen, Weiguo Ma, Kaihui Zhu, Zilong Hu
School of Mechanical Engineering, Yangtze University, Jingzhou, 434023, China.
SJS Petroleum Drilling & Production Equipment Co. LTD, Jingzhou, 434023, China.
Sci Rep. 2024 Jul 9;14(1):15858. doi: 10.1038/s41598-024-66613-w.
Wear simulations of UHMWPE can economically and conveniently predict the performance of wear resistant bushings used for sealing or other reciprocating unidirectional sliding motion. In this study, pin on plate tribological experiments and microscopic analysis was done to obtained the wear profiles, wear volume and wear mechanism of UHMWPE against the counterface with different surface roughness of which Ra range is 0.03 ~ 2 μm. Meanwhile, the 3D wear simulation model of the pin on plate tribological experiments was established to discuss the adaptability of the energy and Archard wear model by analyzing the difference of wear profiles and wear volume between the experiment and simulation. The results indicate that with an increase in the counterface roughness, the wear simulation of UHMWPE estimated by the energy model were more accurate in reciprocating unidirectional sliding motion.
超高分子量聚乙烯（UHMWPE）的磨损模拟能够经济便捷地预测用于密封或其他往复单向滑动运动的耐磨衬套的性能。在本研究中，进行了销盘摩擦学实验和微观分析，以获取超高分子量聚乙烯在与表面粗糙度不同（Ra范围为0.03 ~ 2μm）的对偶面摩擦时的磨损轮廓、磨损体积和磨损机制。同时，建立了销盘摩擦学实验的三维磨损模拟模型，通过分析实验与模拟之间磨损轮廓和磨损体积的差异，来探讨能量磨损模型和阿查德磨损模型的适应性。结果表明，随着对偶面粗糙度的增加，在往复单向滑动运动中，用能量模型估算的超高分子量聚乙烯磨损模拟结果更为准确。
