Ship Power Plants   
DOI: http://www.dx.doi.org/10.24866/2227-6858/2019-4-9

Kurenskii A., Samsonov A., Solovyov S., Bondarenko A. 

ALEXEY KURENSKII, Candidate of Engineering Sciences, Associate Professor, e-mail: alex33_99@mail.ru 
ANATOLII SAMSONOV, Doctor of Engineering Sciences, Professor, e-mail: aicam@mail.ru
SERGEI SOLOVYOV, Candidate of Engineering Sciences, Associate Professor, e-mail: solovev.49@mail.ru 
ANDREI BONDARENKO, Senior Lecturer, e-mail: ab911@mail.ru
Department of Ship Energy and Automation of School of Engineering 
Far Eastern Federal University
8 Sukhanova St., Vladivostok, Russia, 690091

Increasing the bearing capacity
of the lubricating layer  of thrust gas bearings

Abstract: Considering the issues of increasing the efficiency of turbomachines with gas-lubricated bearings, the authors analyze ways to eliminate one of their drawbacks – low bearing capacity.
The authors, based on a literature review and previous experiments, propose to use their previously designed flap hybrid bearings, which combine the positive characteristics of gas supports of various types as the most effective way to increase the bearing capacity. Structurally, this is achieved by the use of ductile elements – petals, as well as the simultaneous injection of compressed gas into the working gap to improve the properties of the lubricant carrier layer. In this paper, the authors have analyzed their own original bearing design, and for the first time solved the problem of determining the characteristics of the bearing lubrication layer. For this purpose, the authors developed a mathematical model, which allowed them to conduct a numerical experiment to confirm the operability of the proposed design. The authors theoretically established the domain of pressure in the lubricant layer (pressure field), and the dependence of the characteristics of the lubricant layer on dimensionless parameters, indicating the influence of gas-dynamic and gas-static effects. The authors have revealed the total impact of these effects, and developed the methods for increasing bearing capacity by utilizing these characteristics. 
Keywords: anti-friction coating, gas lubrication, friction coefficient, axial bearing, turbomachines, flap bearings, hybrid bearings, lubricating clearance.

See the reference in English at the end of the article

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