DYNAMIC ANALYSIS OF MINIMALLY LUBRICATED BALL BEARINGS FOR SPACE APPLICATIONS

摘要

A computer program for dynamic analysis of ball bearings, in which a simple mixed lubrication model for the retainer/race and retainer/ball contact is incorporated, is developed and retainer instability in reaction wheel bearings is investigated. Results show that an increase in the amount of oil promotes the instability and that a retainer with rectangular pockets is more stable than one with circular pockets.