Diploma and Master Thesis

EHD friction of different lubricants – Experimental & models approach

Elasto-hydrodynamic lubrication is present in non-conformal contacts, such as rolling bearings, gear, cam followers, etc. These contact commonly operates in full-film lubrication regime, where viscous friction within the lubricating film defines overall friction performance of these contacts. Regarding the contact conditions (load, speed, strain rate) it is of the great importance the proper selection of lubricant. Especially relevant in this term are its rheological properties. In this work student will perform tribological tests on MTM tribometer device with different lubricants and at different conditions to obtain coefficient of friction values. In the second part he will study different theoretical models for modelling EHD friction (Eyring, Carreau-Yasuda) and try to establish (existing and modified) models for measured friction results

Contact person: Prof. PhD. Mitjan Kalin

Webpage of the laboratory: https://www.tint.fs.uni-lj.si/

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