Tribology and Lubricants

  • 제22권2호
  • /
  • Pages.105-111
  • /
  • 2006
  • /
  • 2713-8011(pISSN)
  • /
  • 2713-802X(eISSN)
한국트라이볼로지학회 (Korean Tribology Society)
권호 표지
DOI QR코드

DOI QR Code

범프 포일을 장착한 고압 터보펌프용 플로팅 링 실의 실험에 관한 연구

Study on the Experiment of the Floating Ring Seal with Bump Foil for High Pressure Turbopump

  • 김경욱 (한국과학기술연구원 트라이볼로지센터) ;
  • 김창호 (한국과학기술연구원 트라이볼로지센터) ;
  • 안경민 (효성중공업 연구소) ;
  • 이성철 (인하공업전문대학교 기계과) ;
  • 이용복 (한국과학기술연구원 트라이볼로지센터)
  • 발행 : 2006.04.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The floating ring seal which is used in the high pressure turbo pump is frequently used in the oxidizer pump and the fuel pump of the turbo pump of the liquid propulsion rocket, because it is able to minimize clearance to decrease the leakage flow rate. Compared with contact seal, the floating ring seal has advantage of minimizing clearance without rubbing phenomenon. But, the floating ring seal has a tendency to increase instability in operating condition in the high speed region. In this research, we devised floating ring seal which is inserted bump in the outer surface in order to improve the stability in the high speed region. Through this work, we expect to improve stability of floating ring seal with increasing the direct damping coefficient of seal and decreasing the eccentricity ratio.

키워드

참고문헌

  1. Mineo, S., Masataka, N., Kenjiro, K. and Masataka, K., 'Research and Development of a Rotating-Shaft Seal for a Liquid Hydrogen Turbopump,' Lubrication Engineering, Vol. 42, No.3, pp. 162-169, 1986
  2. Mamoru, O., Masataka, N., Masataka, K. and Satoshi, H., 'Two-Phase Flow in Floating-Ring Seals for Cryogenic Turbopumps,' STLE Tribology Transactions, Vol. 42, No.2, pp. 273-281, 1999 https://doi.org/10.1080/10402009908982217
  3. Ha, T.W, Lee, Y. B. and Kim, C. H., 'Leakage and Rotordynamic Analysis of a High Pressure Floating Ring Seal in Turbo Pump Unit if a Liquid Rocket Engine,' Tribology International, Vol. 35, pp. 153-161, 2002 https://doi.org/10.1016/S0301-679X(01)00110-4
  4. Allaire, P., Lee, C. and Gunter, E., 'Dynamics of Short Eccentric Plain Seals with High Axial Reynolds Numbers,' Journal of Spacecraft and Rockets, Vol. 15, No.6, pp. 341-347,1978 https://doi.org/10.2514/3.57325
  5. Lee, Y. B., Shin, S. K., Ryn, K., Kim, C. H. and Jang, Gunhee, 'Test Results for Leakage and Rotordynamic Coefficients of Floating Ring Seal in a High Pressure, High Speed Turbopump,' ASME/STLE International Joint Tribology Conference, Oct, 2004
  6. 안경민, 이용복, 김창호, 하태웅, '플로팅 링 실의 누설 특성에 관한 실험적 연구,' 윤활학회지, 제20권, 제4호, pp. 183-189, 2004
  7. Massmann, S. and Nordmann, R., 'Some New Results Concerning the Dynamic Behavior of Annular Turbulent Seals,' NASA CP 2409. Proceedings of the Workshop : Instability in Rotating Machinery held in Carson City, pp. 179-194, 1985
  8. Walowit J. A. and Arno J. N., 'Modern Development in Lubrication Mechanics,' Applied Science Puplishers, Ltd., London, 1975
  9. 이용복, 김태호, 김창호, 이남수, 최동훈, '범프 포일 베어링들의 동적 계수에 관한 실험적 연구,' 윤활학회지, 제18권, 제1호, pp. 42-48, 2002
  10. Lund, J., 'The stability of an Elastic Rotor in Journal Bearings with Flexible, Damped Supports,' Journal of Applied Mechanics, pp. 991-920,1965

피인용 문헌

  1. 펌프 분야 연구동향 vol.10, pp.1, 2006, https://doi.org/10.5293/kfma.2007.10.1.079
  2. 회전체 동역학 및 Tribo 요소의 연구동향 vol.10, pp.1, 2007, https://doi.org/10.5293/kfma.2007.10.1.101
  3. 범프 플로팅 링 실의 정특성에 대한 해석적 연구 vol.24, pp.3, 2006, https://doi.org/10.9725/kstle.2008.24.3.140