Inverse determination of sliding surface temperature based on measurements by thermocouples with account of their thermal inertia

Oleksii Nosko; Yurii Tsybrii

doi:10.1016/j.triboint.2021.107200

Inverse determination of sliding surface temperature based on measurements by thermocouples with account of their thermal inertia

Abstract

This study developed an inverse heat conduction algorithm to determine temperature at a sliding surface taking account of thermocouple thermal inertia. The direct heat conduction problem was solved analytically based on the Laplace integral transform approach. The inverse algorithm was applied to the problem of friction of a brake material against a steel. The experiments were conducted on a pin-on-disc tribometer for three short-time sliding regimes: velocity step, acceleration and deceleration. Temperature in the pin sample was measured by two identical miniature thermocouples installed at different distances from the friction surface. It was found that the two inverse surface temperatures agree well between each other. The inverse algorithm allows predicting the contact temperature measured by infrared thermography with accuracy 5–7%.

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Authors (2)

Oleksii Nosko dr hab. inż.
- Politechnika Białostocka
Yurii Tsybrii dr inż.
- Politechnika Białostocka

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DOI:: Digital Object Identifier (open in new tab) 10.1016/j.triboint.2021.107200
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Details

Category:: Articles
Type:: artykuły w czasopismach
Published in:: TRIBOLOGY INTERNATIONAL no. 164,
ISSN: 0301-679X
Language:: English
Publication year:: 2021
Bibliographic description:: Nosko O., Tsybrii Y.: Inverse determination of sliding surface temperature based on measurements by thermocouples with account of their thermal inertia// TRIBOLOGY INTERNATIONAL -Vol. 164, (2021), s.107200-
DOI:: Digital Object Identifier (open in new tab) 10.1016/j.triboint.2021.107200
Verified by:: Gdańsk University of Technology