Marian M, Weikert T, Tremmel S (2019)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2019
Event location: Nashville, Tennessee
URI: https://www.archiv.mfk.tf.fau.de?file=pubmfk_5d9e184193fe8
With the aim of improved energy efficiency of engine components, it is crucial to understand the underlying mechanisms of surface modification approaches, such as applying tribological coatings or microtextures. Within this contribution, TEHL simulations of the cam/tappet contact with modified surfaces are performed. Input data, like material and fluid parameters, geometries and load cases, are chosen according to the setup of a component test-rig, on which experimental tests are carried out to support the numerical findings. In particular, variants of amorphous carbon coatings and microtextures fabricated by laser ablation are investigated. Obtained insights indicate that coatings can reduce solid and fluid friction in all lubrication regimes. This corresponds to a shift of the Stribeck curve to the lower left. Conversely, microtexturing may reduce the fraction of solid friction while increasing fluid friction. This in turn resembles to a counterclockwise tilt of the Stribeck curve.
APA:
Marian, M., Weikert, T., & Tremmel, S. (2019). Numerical and Experimental Studies on Friction Reduction by Surface Modification in TEHL Contacts. In Proceedings of the 74th STLE Annual Meeting & Exhibition. Nashville, Tennessee, US.
MLA:
Marian, Max, Tim Weikert, and Stephan Tremmel. "Numerical and Experimental Studies on Friction Reduction by Surface Modification in TEHL Contacts." Proceedings of the 74th STLE Annual Meeting & Exhibition, Nashville, Tennessee 2019.
BibTeX: Download