터보펌프 볼 베어링의 마찰 토크 평가
Evaluation of Friction Torque for a Turbopump Ball Bearing
0
조회
0
다운로드
4
인용
0
참고문헌
키워드
초록
Rolling contact ball bearings are utilized almost exclusively for liquid propellant rocket engine turbopump. Turbopump ball bearings are required to endure high speed and high load for a poor lubricated condition in cryogenic environment. To evaluate bearing heat generation performance, friction torque is investigated as a function of rotation speed, bearing load and cooling flow rate through an experimental study using water coolants. Radial and axial loads are simultaneously applied to the test bearing by gas pressurized cylinder rod. Endurance performance of bearing has been also verified under the bearing required load for operating condition during total accumulated test time 2,100 sec.
Abstract
Rolling contact ball bearings are utilized almost exclusively for liquid propellant rocket engine turbopump. Turbopump ball bearings are required to endure high speed and high load for a poor lubricated condition in cryogenic environment. To evaluate bearing heat generation performance, friction torque is investigated as a function of rotation speed, bearing load and cooling flow rate through an experimental study using water coolants. Radial and axial loads are simultaneously applied to the test bearing by gas pressurized cylinder rod. Endurance performance of bearing has been also verified under the bearing required load for operating condition during total accumulated test time 2,100 sec.
참고문헌 (15)
- Kim, J, "Current Status of Turbopump Development in Korea Aerospace Research Institute", International Astronautical Congress 2004 (2004)
- Kim, J, "Development of a Turbopump for a 30 Ton Class Engine", 43rd AIAA, SAE, pp.ASEE Joint Propulsion Conference & Exhibit, 2007
- Jeon, S. M, "Rotordynamic Analysis of a Turbopump with the Casing Structural Flexibility", Journal of Propulsion and Power, 24(3), pp.433~436 (2008)
- 곽현덕, "터보펌프용 극저온 볼 베어링의 성능검증", 한국윤활학회지, 20(4), pp.177~182 (2004), 한국윤활학회
- Kwak, H. D, "Development of Inter-propellant Seal for the Turbopump", 3th Asia International Conference on Tribology (2006)
- 곽현덕, "터보펌프용 미케니컬 페이스 실의 수락시험", 유체기계저널, 10(1), pp.20~25 (2007), 유체기계공업학회
- Jeon, S. M, "Turbopump Rotordynamic Analysis for a 75 ton Class Liquid Rocket Engine", IAC-09-C2.1.1, 60th International Astronautical Congress 2009 (2009)
- 곽현덕, "고추력 터보펌프용 추진제 혼합 방지 실 개발", 한국윤활학회지, 24(6), pp.349~354 (2008), 한국윤활학회
- 전성민, "75톤급 터보펌프 기계평면 실의 작동 성능 시험", 한국윤활학회지, 25(3), pp.187~191 (2009), 한국윤활학회
- 곽현덕, "터보펌프용 극저온 베어링", 실 성능시험설비, 2005 (2005), 341~347
- Liquid Rocket Engine Turbopump Bearings, "National Aeronautics", ~, pp.NASA SP-8048 (1971)
- Dolan, F. J, "MSFC Cryogenic Turbopump Bearing Tester Results and Analysis", 22nd AIAA, SAE, pp.ASEE Joint Propulsion Conference, 1986
- Keba, J. E, "Rocketdyne LOX Fig. 11. Bearing endurance performance test with bearing loads at constant rotating speed 11,000 rpm. Bearing Tester Program", Advanced Earth-to-orbit Propulsion Technology, 1, pp.213~229 (1988), NASA Marshall Space Flight Center
- Hine, M. J, "Absolute Ball Bearing Wear Measurements from SSME Turbopump Dynamic Signals", Journal of Sound and Vibration, 128(2), pp.321~331 (1989)
- Hybrid Bearing Prognostic Test Rig, "Dempsey, P. J", ~, pp.NASA TM-2005-213597 (2005)