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ISSN 2227-6858
English version IS Bulletin Archive 2018. N 1/34


Ship Design, Construction of Vessels, and Shipbuilding Technology

DOI.org/10.5281/zenodo.1196694

Portnova O., Gribinichenko M., Chizhikov R., Kurenskiy A.

OLESYA PORTNOVA, Postgraduate, e-mail: olesya.portnova@mail.ru;
MATVEI GRIBINICHENKO, Candidate of Engineering Sciences, Associate Professor, Head of Department, e-mail: gribinichenko.mv@dvfu.ru;
ROMAN CHIZHIKOV, Graduate Student, chizhikov@bk.ru;
ALEXEY KURENSKIY, Candidate of Engineering Sciences, Associate Professor
Department of the Ship's Power and Automation Department, School of Engineering
Far Eastern Federal University
8 Sukhanova St., Vladivostok, Russia, 690091

Testing of techniques for applying protective coatings on gas bearings of turbomachines with the help of an experimental plant

Abstract: The article deals with improving the efficiency and increasing the service life of gas bearings of ship turbomachines. It presents the results of the authors' work which is an experimental plant for studying the protective coatings of the working surfaces of gas bearings operating in dry friction mode. When the machine starts up before the formation of the gas layer, the bearing operates in the dry friction regime, which results in distorting the geometric characteristics. To address this problem, it is necessary to use protective coatings and materials having certain characteristics. The article outlines the reasoning of the choice of protective coatings, materials and promising technologies of surface modification with the help of plasma electrolytic oxidation and laser-assisted deposition. Basing on the method of examining antfrictional materials and coatings, there has been chosen the simulation method. The article contains design characteristics and operational features of the plant as well as basic characteristics and dependences of changes of the friction torque and rotation frequency on time under the invariable loading.

Key words: antifriction coating, gas-film lubrication, frictional coefficient, thrust bearing, tribological properties, friction torque, tribological experimental setup.

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