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Publications in Scientific Journals:

M. Rodríguez Ripoll, B. Scheichl, D. Bianchi, B. Jakab, F. Franek:
"Development of a mechanical model of doctor-blade roll tribosystem with aim to optimise cleaning performance: numerical predictions and first experimental verification";
Tribology - Materials, Surfaces & Interfaces (invited), 8 (Special issue on the 3rd International Tribology Symposium of the IFToMM: Part I) (2014), 1; 41 - 47.



English abstract:
In the paper production, doctor (scraping) blades are placed in contact with press rolls during wet pressing so as to purge the surface of the rolls from processing water, contamination, and stickies. The contact is achieved by mounting the blade on a holder, which is tilted around a rotation axis until the blade tip contacts with the roll. The contact force is determined by the supply pressure of the air forced through the tube that is placed at the bottom of the holder. Owing to contact, the blade wears off and needs to be replaced periodically. Our aim is to optimize the cleaning performance of the system by modelling the tribological contact between doctor blade and press roll, in order to achieve an optimum cleaning performance, thus increasing the blade lifetime and reducing energy consumption. The model is susceptible to an inextensive numerical evaluation as compared to that of a more advanced modelling approach, e.g. in terms of a full finite element analysis of the beam deflection. A first comparison with experimental findings is encouraging.

Keywords:
doctor blade, hydrodynamic lubrication, paper industry, wear


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1179/1751584X14Y.0000000062

Electronic version of the publication:
http://publik.tuwien.ac.at/files/PubDat_218701.pdf


Created from the Publication Database of the Vienna University of Technology.