An Experimental Approach to Measure Slips at Frictional Contact Interfaces Using a Self-Powered Sensor

IF 1.9 4区 工程技术 Q3 ENGINEERING, MECHANICAL
M. Ba, W. Qin, Y. Sun, W. Zhao
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引用次数: 0

Abstract

When fastening components connected through friction contacts are subjected to tangential cyclic loads, slips may occur at the contact interfaces. Under multiple cyclic tangential load excitations, slips may be cumulative or shakedown. However, few reports have conducted experimental work on slip behaviors because local micro slips are difficult to measure. In this paper, an experimental approach to measure slips at frictional contact interfaces under cyclic loads was presented, which could directly capture slip behaviors. In this approach, local micro slips at the contact interfaces were measured by a self-powered sensor based on the principles of a triboelectric nanogenerator (TENG), and a conventional digital source meter was used to collect the voltage signals from the sensor. This approach is completely different from existing contact displacement measurement methods. The slip behaviors in a flat-on-flat contact using an established test bench were observed experimentally. The finite element model of this contact configuration was built to simulate the dynamic slips and the results were in good agreement with the experimental results.

使用自供电传感器测量摩擦接触界面滑移的实验方法
当通过摩擦接触连接的紧固部件受到切向循环载荷时,接触界面可能会发生滑移。在多次循环切向载荷激励下,滑移可能是累积的或安定的。然而,由于局部微滑移难以测量,很少有报道对滑移行为进行实验研究。本文提出了一种测量循环载荷作用下摩擦接触界面滑移的实验方法,该方法可以直接捕捉滑移行为。该方法利用基于摩擦电纳米发电机(TENG)原理的自供电传感器测量接触面处的局部微滑移,并使用传统数字源计收集传感器的电压信号。该方法与现有的接触位移测量方法完全不同。利用已建立的试验台架,对平对平接触中的滑移行为进行了实验观察。建立了这种接触形态的有限元模型,模拟了动态滑动,结果与实验结果吻合较好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Experimental Techniques
Experimental Techniques 工程技术-材料科学:表征与测试
CiteScore
3.50
自引率
6.20%
发文量
88
审稿时长
5.2 months
期刊介绍: Experimental Techniques is a bimonthly interdisciplinary publication of the Society for Experimental Mechanics focusing on the development, application and tutorial of experimental mechanics techniques. The purpose for Experimental Techniques is to promote pedagogical, technical and practical advancements in experimental mechanics while supporting the Society''s mission and commitment to interdisciplinary application, research and development, education, and active promotion of experimental methods to: - Increase the knowledge of physical phenomena - Further the understanding of the behavior of materials, structures, and systems - Provide the necessary physical observations necessary to improve and assess new analytical and computational approaches.
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