Temperature Measurements at Tyre Tread Rubber on Sandpaper Oscillatory Sliding Contacts Using Acicular Grindable Thermocouples

IF 2.9 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Oleksii Nosko, Yurii Tsybrii, Pablo Guillermo Torrelio Arias, Adolfo Senatore
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Abstract

The tribological performance of tyre–road contacts depends crucially on the contact temperature. This study investigates the reliability and accuracy of acicular grindable thermocouples possessing an original needle-shaped wearable part as applied to measuring temperature at the oscillatory sliding contact between a rubber tyre tread sample and a sandpaper. A linear oscillatory tribometer is used to imitate the sliding phase of tyre–road contact under mild friction conditions. It is shown that the acicular grindable thermocouple measurements are generally test–retest repeatable. Moreover, the thermocouple signal becomes more stable with increasing contact pressure. Compared to the conventional thermocouple technique, the acicular grindable thermocouple overestimates temperature at the rubber friction surface by about 23% due to involvements of its wearable part in friction with the sandpaper. The findings suggest an expansion of the acicular grindable thermocouple technique to full-scale experiments with tyres on the road.

Abstract Image

使用针状可磨削热电偶测量砂纸振荡滑动触点上轮胎胎面橡胶的温度
轮胎与路面接触的摩擦学性能主要取决于接触温度。本研究调查了针状可磨热电偶的可靠性和准确性,该热电偶具有一个独创的针状易损件,可用于测量橡胶轮胎胎面样品和砂纸之间摆动滑动接触的温度。使用线性振荡摩擦仪来模拟轮胎在轻微摩擦条件下与路面接触的滑动阶段。结果表明,针状可磨热电偶的测量结果一般都具有测试重复性。此外,热电偶信号随着接触压力的增加而变得更加稳定。与传统的热电偶技术相比,针状可磨热电偶高估了橡胶摩擦表面的温度约 23%,原因是其易损部分参与了与砂纸的摩擦。研究结果表明,应将针状可磨热电偶技术推广到道路轮胎的全面实验中。
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来源期刊
Tribology Letters
Tribology Letters 工程技术-工程:化工
CiteScore
5.30
自引率
9.40%
发文量
116
审稿时长
2.5 months
期刊介绍: Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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