Evaluation of static bearing strength for a tilting-pad hydrostatic gas bearing

Аuthors

Beschastnykh V. N.^1*, Ravikovich Y. A.^2**, Sokolov A. N.^1*

1. Gas turbine engineering research and production center Salyut, 16, Budennogo av., Moscow, 105118, Russia
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: ogk4@salut.ru
**e-mail: yurav@mai.ru, yr@mai.ru

Abstract

There is an application area for turbomachines where using of gas-lubricated bearings is economically resonable in regard to rather heavy rotors. It is referring to turbogenerators with 500..2000 kW capacity value equipped with high-freguency electrogenerators. Mathematical modelling results are presented in the paper for gas flows within lubrication layer of tilting-pad hydrostatic gas bearings. Experimental data are described to demonstrate bearing strength and rigidity for discussed bearings.

Keywords:

gas-lubricated bearings; hydrostatic gas bearings; tilting-pad bearings