Novel numerical method for parameterising fretting contacts
Novel numerical method for parameterising fretting contacts
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DOI：
10.1016/j.triboint.2019.06.019
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发表时间：
2020-09
影响因子：
6.2
通讯作者：
A. Wade;R. Copley;A. Omar;B. Clarke;T. Liskiewicz;M. Bryant
中科院分区：
文献类型：
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作者：
A. Wade;R. Copley;A. Omar;B. Clarke;T. Liskiewicz;M. Bryant
传统上，微动状态转变是通过微动环（切向力、Q 与切向位移 δ）和材料响应的定性评估来实现的。其他研究使用的参数中，理论上确定阈值超过接触处的摩擦力，以进行状态转变识别。这项研究成功开发了一种基于简单矢量原理的灵活循环分析方法，能够量化和表征其组成部分。在微动接触分析方面，循环分析方法为基于理论上克服接触摩擦的方法提供了一种补充的状态转变识别方法，两者之间具有很强的一致性。这种新颖的方法提供了一种将状态转变与其他数据集相关联的有效方法，与其他状态转变标准相比，可以进一步了解接触的机械响应。该方法的可能应用包括实现智能资产监控以及开发易磨损的工程组件。这是一种极其灵活的技术，适用于其他类型的循环分析。
Fretting regime transition is traditionally achieved by qualitative assessment of the fretting loops (tangential force, Q vs tangential displacement δ) and material response. Other studies used parameters in which thresholds are theoretically determined to exceed friction at the contact for regime transition identification. This study successfully developed a flexible loop analysis method based on simple vector principles that is able to quantify and characterise its constituent parts. In terms of fretting contact analysis the loop analysis method provided a complementary method of regime transition identification to those based on theoretically overcoming friction at the contact, with strong agreement between the two. This novel method provides an efficient way to correlate regime transition with other data sets, with additional insights into the mechanical response of the contact compared to other regime transition criteria. Possible applications of this method include enabling smart asset monitoring and in the development of engineering components that are subject to fretting. This is an extremely flexible technique that has applicability for other types of loop analysis.