재사용 우주발사체 액체로켓엔진용 터보펌프에 적용하기 위한 플로팅 슬리브 하이브리드 유체 베어링: 정하중 특성 측정

Abstract

Reusability of liquid rocket engines relies on durability and reliability of bearings of turbopumps. The current work introduces a novel floating sleeve hybrid fluid film journal bearing for application of future reusable turbopumps and measures its static load performance. Measurements show that the test bearing shows a distinctive damping capability and stability characteristics even under a low supply pressure condition compared to a typical hybrid bearing.