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논문 상세정보

저널-스러스트 베어링 사이의 상호 연결 경계가 동압 공기 윤활 베어링의 성능에 미치는 영향

Effect of Interconnected Boundary Between Journal and Thrust Bearings on the Performance of Self-Acting Air-Lubricated Bearings

Abstract

In this paper, the effect of interconnected boundary between journal and thrust bearings on the performance of self-acting air-lubricated bearings is investigated. When journal and thrust bearings have common boundary, conventional boundary condition which assumes that the boundary pressure is equal to atmosphere is no more valid. Instead, new boundary condition by mass conservation at interconnected boundary is needed. To do this, a duct model satisfying mass conservation at interconnected boundary is developed. Using this model, pressure distribution at interconnected boundary is numerically analyzed with changing the volume of interconnecting part. As a result, it is shown that load capacity of thrust bearing can be greatly increased when journal and thrust have a common boundary.

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참고문헌 (10)

  1. Malanoski, S. B. and Pan, C. H. T., 1965, 'The Static and Dynamic Characteristics of the Spiral-Grooved Thrust Bearing,' ASME Journal of Basic Engineering, Vol. 87, pp. 547-558 
  2. Bonneau, D., Huitric, J. and Tournerie, B., 1993, 'Finite Element Analysis of Grooved Gas Thrust Bearing and Grooved Gas Face Seals,' ASME Journal of Tribology, Vol. 115, pp. 348-354 
  3. Satomi, T. and Lin, G., 1993, 'Design optimization of Spirally Grooved Thrust Air Bearings for Polygon Mirror Laser Scanners,' JSME International Journal, Series C, Vol. 36, No.3, pp. 393-399 
  4. Faria, M. T. C., 1999, 'An Efficient Finite Element Procedure for Analysis of High-Speed Spiral Groove gas Face Seals,' ASME Journal of Tribology, Vol. 123, pp. 205-210 
  5. Kang, J. H., Kim, K. W., 2001, 'A Comparison Study on the Performance of Several Types of Air-Lubricated Hydrodynamic Thrust Bearings,' Journal of the KSTLE, Vol. 18, No.5, pp. 364-370 
  6. Vohr, J. H. and Chow, C. Y., 1965, 'Characteristics of Herringbone-Grooved, Gas-Lubricated Journal Bearings,' ASME Journal of Basic Engineering, Vol. 109, pp. 37-41 
  7. Bonneau, D. and Absi, L, 1994, 'Analysis of Aerodynamic Journal Bearings With Small Number of Herringbone Grooves by Finite Element Method,' ASME Journal of Tribology, Vol. 116, pp. 698-704 
  8. Takuji Kobayshi, 1999, 'Numerical Analysis of Herringbone-Grooved Gas-Lubricated Journal Bearings Using a Multigrid Technique,' ASME Journal of Tribology, Vol. 121, pp. 148-156 
  9. Lee, Y. B., Kwak, H. D., Kim, C. H. and Jang, G. H., 2001, 'Analysis of Gas-Lubricated Bearings with a Coupled Boundary Effect for Micro Gas Turbine,' STLE Tribology Transactions, Vol. 44, pp. 658-691 
  10. Analysis of Gas-Lubricated Bearings with a Coupled Boundary Effect for Micro Gas Turbine , Lee,Y.B.;Kwak,H.D.;Kim,C.H.;Jang,G.H. , STLE Tribology Transactions / v.44,pp.658-691, 2001

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