한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

고압 터보펌프용 플로팅 링 실의 거동과 동특성의 상관관계에 관한 실험

Test Results of Correlation between Behavior and Dynamic Characteristics of Floating Ring Seal In High Pressure Turbopump

  • 신성광 (KIST 트라이볼로지 연구센터) ;
  • 이용복 (KIST 트라이볼로지 연구센) ;
  • 곽현덕 (KIST 트라이볼로지 연구센) ;
  • 김창호 (KIST 트라이볼로지 연구센) ;
  • 장건희 (한양대학교 정밀기계공학과)
  • 발행 : 2003.11.01
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초록

The floating ring seal is often used in the turbopump (TP) unit of liquid rocket engine (LRE) owing to its inherent ability of minimizing the leakage flow and superior dynamic characteristics as well. This paper describes the test results concerned with the lock-up and dynamic characteristics of the floating ring seals in the turbopump. The characteristics of the floating ring seals were extracted from the frequency response function (FRF) by instrumental variable method. The experiment was tested at 7.0MPa and 0-24,800 rpm. And the test results were introduced about the dynamic characteristics of floating ring seal related with the eccentricity and attitude angle.

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