Using infrared imaging to measure the friction coefficient during pin-on-disk sliding wear tests

被引：0

作者：

Ottani, Filippo ^{[1
]}

Lusvarghi, Luca ^{[1
,2
,3
]}

Bolelli, Giovanni ^{[1
,2
,3
]}

Amenta, Federica ^{[4
]}

Pedrazzi, Simone ^{[1
,2
]}

Morselli, Nicolo ^{[1
]}

Puglia, Marco ^{[1
]}

Allesina, Giulio ^{[1
,2
]}

机构：

[1] Univ Modena & Reggio Emilia, Dept Engn Enzo Ferrari, Via Pietro Vivarelli 10-1, I-41125 Modena, MO, Italy

[2] Univ Modena & Reggio Emilia, InterMech MORE Ctr Interdipartimentale Ric Appl &, Via Pietro Vivarelli 2, I-41125 Modena, MO, Italy

[3] Local Unit Univ Modena & Reggio Emilia, Consorzio Interuniv Nazl Sci & Tecnol Mat INSTM, Via Pietro Vivarelli 10-1, I-41125 Modena, MO, Italy

[4] ATP SpA, Via Austria 12-14-16, I-41122 Modena, MO, Italy

来源：

MEASUREMENT | 2024年 / 225卷

关键词：

Thermography; Thermal model; Friction factor; PTFE; Sliding wear; HEAT-CONDUCTION PROBLEM; TEMPERATURE MAPS; INVERSE PROBLEM; DRY;

D O I：

10.1016/j.measurement.2023.114048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In a standard pin on a disk tribometer, the friction coefficient under a sliding wear configuration is commonly obtained from the experimental measurement of the tangential force, which is usually achieved through either a load cell attached to the pin holder or a torque meter attached to the disk shaft. This paper presents an alternative method to measure the friction coefficient using a combination of thermal imaging and a reverse thermal model. The measurement of the temperature evolution of the pin, allow to solve the friction heat generation problem between the mating surfaces. Heat generation is influenced by the friction coefficient and the test parameters, whilst conduction is also significantly affected by the thermophysical properties of the materials. Experimental tests with PTFE pins with lamellar bronze filler and Cr2O3-coated stainless steel disks showed an average difference of the friction coefficient of about 12% between the new thermal and the standard measurement.

引用

页数：11

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