Journal of Aerospace System Engineering (항공우주시스템공학회지)
- Volume 1 Issue 4
- /
- Pages.37-41
- /
- 2007
- /
- 1976-6300(pISSN)
- /
- 2508-7150(eISSN)
Development of a Labyrinth Seal for a Momentum Wheel
모멘텀 휠용 라비린스실 개발
- Cheon, Dong-Ik ;
-
Oh, Hwa-Suk
;
-
Lee, Sangchul
;
- Byun, Sang-Kyun ;
- Park, Jong-Seung ;
- Kang, Min-Young ;
- Rhee, Seung-Woo
- 전동익 ;
-
오화석
(한국항공대학교 항공우주 및 기계공학부)
;
-
이상철
(한국항공대학교 항공우주 및 기계공학부)
;
- 변상균 (인텔레인(주) 개발팀) ;
- 박종승 (인텔레인(주) 개발팀) ;
- 강민영 (인텔레인(주)) ;
- 이승우 (한국항공우주연구원 위성미래기술연구실)
- Published : 2007.12.31
Abstract
Labyrinth seal is most common way to protect the bearings installed in Reaction wheel. In spite of wide applications, no such research was found about the sealing utility of the Labyrinth seal in the condition of vacuum and high temperature. In this research, we tried to verify the utility of Labyrinth seal. Numerical analysis had been executed to predict the benefit of the Labyrinth seal and also experiments were performed to verify the utilization. Two Bearings were installed at the vacuum chamber, one was assembled with Labyrinth seal and the other was stand alone. After executing the vacuum test, it was found to be the stand alone bearing had lost more weight than the one that was assembled with the labyrinth seal. In this result, it is verified that the Labyrinth seal has useful function to preserve the lubricant that affects to the life-cycle of the Bearing.