Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on the Durability Characteristics of an Air-lubricated Bump Foil Journal Bearing

공기윤활 범프포일 저널 베어링의 내구성 특성에 관한 연구

  • 이용복 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 김태호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 김창호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 이남수 (한양대학교 대학원 기계설계학과) ;
  • 장건희 (한양대학교 공과대학 정밀기계공학과)
  • Published : 2002.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper describes a durability characteristics of an air-lubricated bump foil journal bearing for high speed turbomachinerys at room temperature. At first, lift-off test and load capacity test were performed to understand the general characteristics of an air-lubricated bump foil Journal bearing. A 52 N weighted bump foil bearing sleeve was lilted off from a rotating Journal at about 3,000 rpm, and produced a load capacity of 500 N at an operating speed of 15,000 rpm. The next was 500 cycles lift-off test with an air-lubricated bump foil journal bearing that had a molybdenum disulfide(MoS$_2$) solid lubricant coated top foil. Data from measuring bearing torque and temperature and the observation of rubbing surfAce were included in results. Therefore the results of this work will aid in proving durability of air-lubricated bump foil journal bearings.

Keywords

References

  1. ASME, Journal of Tribology v.116 Advancements in the Performance of Aerodynamic Foil Journal Bearings : High Speed and Load Capability Heshmat, H. https://doi.org/10.1115/1.2927211
  2. ASME, Journal of Tribology v.117 An Analysis of Gas-Lubricated, Multileaf Foil Journal Bearing with Backing Springs Heshmat, C. A.;Heshmat, H. https://doi.org/10.1115/1.2831272
  3. Compliant Foil Bearings Technology and Their Application to High Speed Turbomachinery Heshmat, H.;Hermel, P.
  4. 한국소음진동공학회지 소특집 v.11 no.5 포일 베이링에 대한 기술 개발 현황 및 응용에 대한 재 조명 이용복;김창호
  5. ASME, Journal of Tribology v.114 Compliant Foil Bearing Stuctural Stiffness Analysis: Part Ⅰ- Theoretical Model Including Strip and Variable Bump Foil Geometry Roger Ku, C. -P.;Heshmat, H. https://doi.org/10.1115/1.2920898
  6. NASA TM-107405 A New Foil Air Bearing Test Rig for Use to 700℃ and 70,000 rpm Dellacorte C.
  7. ASME, Journal of Tribology v.121 Comparative Evaluation of MoS₂and WS₂Powder Lubricants in High Speed, Multi-Pad Journal Bearings Fred Higgs, C. Ⅲ;Heshmat, C. A.;Heshmat, H. https://doi.org/10.1115/1.2834113
  8. 윤활학회지 v.17 no.4 공기윤활다엽포일 저어널 베어링의 회전축 부상 특성에 관한 연구 이용복;김태호;김창호;이남수;장건희
  9. 윤활학회지 (게재 예정) 공기윤활 범프 저어널 베어링의 부상 특성에 관한 연구 이용복;이남수;최동훈;김창호

Cited by

  1. 연료 전지용 터보 익스펜더의 공기 포일 베어링에 대한 연구 vol.21, pp.3, 2002, https://doi.org/10.9725/kstle.2005.21.3.114