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Wear Behavior of a Bio-inspired Bearing for off-center Loads
Journal of Bionic Engineering ( IF 4 ) Pub Date : 2020-11-21 , DOI: 10.1007/s42235-020-0107-3
Delphine Sysaykeo , Jean-Marc Linares , Emmanuel Mermoz

Misalignment is one of the most common causes of wear in bush bearings. Design improvements have been proposed by many researchers. Unfortunately, it did not efficiently reduce the misalignment. Classic geometrical designs sometimes reach their limits. For this reason, a bio-inspired design is proposed to solve the impediment. In this article, a bio-inspired bearing suited to misalignment was tested and compared to a classical bush bearing. The contact pressures of both bearings were compared with static Finite Element (FE) simulations for off-center load. Due to the complex shape of the involved contact, the performances of both bearings were also studied over time. Their wear behaviors were predicted with a numerical method. The methodologies emplaced to simulate the wear were described in this paper. Particularly, the wear coefficient determination obtained by experimental testing was detailed. The pressure value, the contact zone and the wear depth were compared and discussed. The wear results for the classical bearing are in accordance with the literature. The simulations show a deeper wear on the classical bush bearing than on the bio-inspired bearing. This leads to a longer period of service life for the bio-inspired bearing.



中文翻译:

偏心载荷下受生物启发的轴承的磨损行为

偏心是衬套轴承最常见的磨损原因之一。许多研究人员已经提出了改进设计的建议。不幸的是,它没有有效地减少未对准。经典的几何设计有时会达到极限。因此,提出了一种以生物为灵感的设计来解决这一障碍。在本文中,测试了一种适合偏心的受生物启发的轴承,并将其与传统的衬套轴承进行了比较。将两个轴承的接触压力与静态有限元(FE)仿真进行了比较,以得出偏心载荷。由于所涉及的接触件的形状复杂,因此还研究了两个轴承的性能。用数值方法预测了它们的磨损行为。本文介绍了模拟磨损的方法。尤其,通过实验测试确定了磨损系数。比较并讨论了压力值,接触区域和磨损深度。经典轴承的磨损结果与文献一致。仿真结果表明,传统的衬套轴承比受生物启发的轴承磨损更深。这可以延长生物启发轴承的使用寿命。

更新日期:2020-11-22
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