RESEARCH ON MEASUREMENT OF ELASTIC ROLLER DEFORMATIONS IN ROLLER BEARINGS BY IMAGE CORRELATION METHOD

Dragos-Florin CHITARIU, Mehmet ILHAN, Cătălin-Gabriel DUMITRAS, Florin-Daniel EDUTANU, Fanica-Valeriu HRIB, Mihăiță HORODINCĂ

Abstract


Determining the deformations and the contact stress of the rollers in the roller bearing structure is difficult to achieve experimentally. Usually the research focuses on calculations of the contact stress at the roller-ring contact and considers the general model of the Hertz-type contact with various particularities. The aim of the paper is to develop a measuring methodology for the elastic deformations of the rollers in the structure of general-purpose roller bearing. Experimental work was performed on determining the elastic roller deformations for the most loaded roller using a non-contact and material-independent method based on the principle of digital image correlation (DIC) - without expensive and time-consuming preparations. The experimental data was used further to perform more accurate Finite Element Analysis.


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References


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