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Development of a thin-film sensor for in situ measurement of the temperature rise in rolling contacts with fluid film and mixed lubrication

 
: Emmrich, Stephan; Plogmeyer, Marcel; Bartel, Dirk; Herrmann, Christoph

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Fulltext ()

Sensors. Online journal 21 (2021), No.20, Art. 6787, 16 pp.
https://www.mdpi.com/journal/sensors
ISSN: 1424-8220
ISSN: 1424-8239
ISSN: 1424-3210
Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland)
19330 BG
English
Journal Article, Electronic Publication
Fraunhofer IST ()
mixed friction; fluid friction; thin film sensor; rolling contact; high pressure

Abstract
The following study presents an in situ sensor system which can measure the temperature change of rolling contacts for heavy duty during fluid as well as mixed friction. This thin-film sensor was optimized with regard to its size, spatial resolution, and wear resistance. Extensive tests were carried out with a two-disk test rig and the data of the temperature change were presented. The results show the complex processes within a rolling contact and the strongly interaction of pressure, friction, and temperature development within the contact zone. Due to the detailed sensor and disk characterization, the data are suitable for comparing calculation methods.

: http://publica.fraunhofer.de/documents/N-642211.html