Dynamic characteristics of the combined smart bearing

Yong Bok Lee, Kyung Min Lee, Jin Taek Chung, Seung-Jong Kim, Se Na Jeong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The stability, reliability, efficient performance of high speed turbo machinery is very important, and accordingly has increased the demand for advanced bearings. In order to meet the advanced bearing needs, Heshmat proposed a hybrid foil-magnetic bearing [1]. The hybrid bearing combining the two bearings takes advantage of the strengths of each while compensating for each other's weaknesses. This paper presents dynamic characteristics of the combined smart bearing (CSB) of different structure from Heshmat's bearing. The CSB and test rig were designed, fabricated and carried out the test. Numerical predictions of Air foil bearing (AFB) and CSB were compared the dynamic force performance, and analysis of bearings are performed by finite element method (FEM). Experiments were conducted to determine the structural static and dynamic characteristics of AFB. The dynamic characteristics of AFB and CSB compared depending on the rotating speed change. The experimental results were obtained the dynamic characteristics of the CSB 50% higher than value of the stiffness effect. In addition to, the CSB 100% higher than value of the damping effect.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Tribology Division, TRIB
Pages337-339
Number of pages3
DOIs
Publication statusPublished - 2011 Dec 1
EventASME/STLE 2011 International Joint Tribology Conference, IJTC 2011 - Los Angeles, CA, United States
Duration: 2011 Oct 242011 Oct 26

Other

OtherASME/STLE 2011 International Joint Tribology Conference, IJTC 2011
CountryUnited States
CityLos Angeles, CA
Period11/10/2411/10/26

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ASJC Scopus subject areas

  • Mechanical Engineering
  • Materials Science(all)

Cite this

Lee, Y. B., Lee, K. M., Chung, J. T., Kim, S-J., & Jeong, S. N. (2011). Dynamic characteristics of the combined smart bearing. In American Society of Mechanical Engineers, Tribology Division, TRIB (pp. 337-339) https://doi.org/10.1115/IJTC2011-61179