Open AccessPerformance study of electric pump unit bearings of spacecraft thermal control systems
Author(s) -
N. I. Smirnov,
Н.Н. Смирнов,
M. V. Prozhega,
С. А. Матвеев,
O. V. Shirobokov,
Alexander V. Gorbunov,
O. V. Zheltyshev
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/747/1/012043
Subject(s) - spacecraft , separator (oil production) , thermal , bearing (navigation) , volumetric flow rate , engineering , mechanical engineering , materials science , automotive engineering , control theory (sociology) , computer science , aerospace engineering , mechanics , control (management) , physics , meteorology , artificial intelligence , thermodynamics
This paper presents the methodology and test results of rolling bearings of low-flow electric pump units used to ensure circulation of the thermal liquid in the active thermal control system of spacecraft. A multi-position stand has been developed for testing bearings within 40 days in a thermal liquid at a speed of 6000 rpm with the possibility of registering the separator rate speed. As a performance criterion, the clearance in the bearing is used. The conditions of the onset of pitting are investigated.