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The Static Characteristics of Bump Foil Thrust Bearing Considering Tilting Condition

[+] Author Affiliations
Tae-Young Kim, Dong-Jin Park, Yong-Bok Lee

Korea Institute of Science and Technology, Seoul, Republic of Korea

Paper No. IJTC2009-15084, pp. 189-191; 3 pages
doi:10.1115/IJTC2009-15084
From:
  • ASME/STLE 2009 International Joint Tribology Conference
  • ASME/STLE 2009 International Joint Tribology Conference
  • Memphis, Tennessee, USA, October 19–21, 2009
  • Conference Sponsors: Tribology Division
  • ISBN: 978-0-7918-4895-1 | eISBN: 978-0-7918-3862-4
  • Copyright © 2009 by ASME

abstract

Air foil thrust bearings are the critical component available on high-efficiency turbomachinery which needs ability to endure the large axial force. Previous investigations about the static characteristics were obtained over the region of the thin air film using finite-difference method and the characteristics of the corrugated bump foil using finite-element method. Moreover, a recent study demonstrated that bearing performance is sensitive to tilting thrust pad condition. In this study, experimentally measured bearing static characteristics are compared with the numerical model of the foil thrust bearing considering tilting pad condition. Three geometrically different type foil bearings were tested to measure their load capacity under tilting conditions that have continuous angles from zero to 0.0002 rad. These data are presented for use i1 n the development of more accurate foil thrust bearing numerical models.

Copyright © 2009 by ASME
Topics: Thrust bearings

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