Browse > Article

Effect of Control Method and Plunger Profile of Variable Valve on Flow Control of a Liquid Rocket Engine  

Lee, Joong-Youp (한국항공우주연구원 미래로켓추진팀)
Huh, Hwan-Il (충남대학교 항공우주공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.15, no.5, 2011 , pp. 35-47 More about this Journal
Abstract
Dynamic characteristics of a flow control valve, which plays an important role in thrust and O/F control of liquid rocket engines, have been analyzed by the AMESim simulator modeling. The speed control method was proposed for the control of the flow valve equipped with a BLDC motor. The experimental results demonstrated the feasibility of systematical application as well as the performance of the speed control method. Moreover, the speed control method for BLDC motor is much simpler than the P control method in complex flow systems. With the speed control method, the control flow characteristics were evaluated according to plunger shapes. Consequently, same plunger shape proved to be more efficient in the mixture ratio control operated by two flow valves. It was also shown that the appropriate modification of plunger shapes could reduce the mixture ratio perturbation by 0.5%.
Keywords
AMESim; Flow Control Valve; Speed Control Method; Inherent Flow Characteristics; Plunger; Sleeve; O/F Ratio;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 이중엽, 이수용, "속도제어기법을 이용한 로켓엔진 제어밸브의 동특성," 항공우주기술지, 제7권, 제2호, 2008, pp.162-169   과학기술학회마을
2 Imagine S. A., Thermal-Hydraulic Library for Component Design & Motor and driver, 2003
3 D. McCloy, H. R. Martin, Control of Fluid Power : Analysis and Design, John Wiley & Sons, 1980
4 E. C. Fitch, I.T. Hong, Hydraulic system modeling and simulation, BarDyne, Inc., 2001
5 Herbert E. Merritt, Hydraulic Control Systems, 1967
6 이중엽, 정태규, 이수용, "제어밸브를 위한 BLDC 모터의 동특성," 대한기계학회 춘계학술대회, Th12D057 (CD본), 2007
7 이중엽, 정태규, 이수용, "서보모터를 이용한 Inline Co-aixle 밸브 제어," 대한기계학회 춘계학술대회, Th12D053 (CD본), 2007
8 장기원, 김은수, 박호열 외, "75톤급 유량제어밸브 개발보고서," (주)한화, 2010
9 Philip L. Skousen, Valve Handbook, McGraw-Hill, 1998
10 김영목, 정태규, 이중엽, 정영석, 한상엽, 권오성, "로켓엔진 추력제어기술 개발," 4차년도 보고서, 한국항공우주연구원, 2007
11 이중엽, 정태규, 한상엽, 김영목, "제어밸브를 이용한 액체로켓엔진 모사시스템 특성," 한국추진공학회지, 제9권, 제3호, 2005, pp.74-84   과학기술학회마을
12 이중엽, 허환일, "가스발생기 연료개폐밸브의 동적 거동," 한국추진공학회지, 제14권, 제4호, 2010, pp.1-9   과학기술학회마을
13 Yoshihiro, N., Yoshifumi, I., "Throttling dynamic response of LH2 rocket engine for vertical landing rocket vehicle," AAS 97-421, pp.229-240
14 Imagine S. A., AMESim Library, 2003
15 정태규, 이수용, "BLDC 모터로 구동되는 액체 추진제 로켓엔진용 극저온 추력제어밸브 개발," 한국항공우주학회지, 제38권, 제10호, 2010, pp.1026-1030   과학기술학회마을   DOI   ScienceOn
16 최재성, 강완규, 허환일, "하이브리드 로켓의 추력제어 성능 향상에 관한 연구," 한국추진공학회지, 제15권, 제1호, 2011, pp.55-62   과학기술학회마을