한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제25권2호
  • /
  • Pages.79-87
  • /
  • 2021
  • /
  • 1226-6027(pISSN)
  • /
  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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이종 추진제를 적용한 이중추력 로켓모터 계면에서의 성능 과도 현상에 관한 연구

A Study on the Performance Transient Phenomenon at the Interface of a Dual Thrust Rocket Motor with Two Kinds Propellant

  • 투고 : 2020.12.08
  • 심사 : 2021.03.06
  • 발행 : 2021.04.30
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초록

본 연구에서 축 방향으로 충전 된 이종 추진제를 적용 이중 추력 추진기관의 성능 예측/해석 방법을 개발하였다. 부스터로부터 서스테이너 단계로 천이될 때 계면에서 성능에 관한 과도현상이 발생하였는데, 그 과도현상의 원인과 특성을 연소시험 결과와 함께 비교하여 조사하였다. 성능과도 현상은 추진제 물성이 서로 다른 추진제 사이 형상설계뿐만 아니라, 추진제 경화 수축에 따른 제작상 오차에 의해 민감하게 발생되고 있음을 확인되었다.

In this study, we developed a method to predict/analyze the performance of a dual thrust rocket motor that has 2 kinds propellant charged in axial direction. When transitioning from the booster to the suspender stage, a transient phenomenon related to performance occurred at the interface. The causes and characteristics of the transient phenomenon were investigated by comparing them with the results of the combustion test. It was confirmed that the performance transient phenomenon is sensitively generated not only by the shape design between the propellants with different properties of the propellant, but also by errors in manufacturing due to the propellant curing shrinkage.

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참고문헌

  1. Sung, H.G., Kim, J.R., Choi, Y.G. and Hwang, K., "A Study on Single Chamber Dual Thrust Solid Rocket Motor," KSAS 1989 Spring Conference, Korea, pp. 163-166, April 1989.
  2. Kwon, H.M, "Study on Internal Ballistic Performance Analysis for Single Chamber Dual-Thrust Rocket Motor", Journal of the Korean Society of Propulsion Engineers, Vol. 24, No. 4, pp. 1-11, 2020. https://doi.org/10.6108/kspe.2020.24.4.001
  3. El-Nady, A.M., Ahmed, M.Y.M., El-Senba wy, M.A. and Sarhan, A.M., "Experimental and Theoretical Study on a Dual-thrust Rocket Motor with Subsonic Intermediate Nozzle," Journal of Aerospace Engineering, Vol. 232, No. 10, pp. 1844-1852, 2018.
  4. NASA, "Solid Rocket Motor Performance Analysis and Prediction," NASA SP 8039, 1971.
  5. Kim, H.J. and Moon, K.G., "Internal Ballistic Analysis using Two Kinds of Propellant for Design of Dual-thrust Solid Rocket Motor", 48th KSPE Sprong Conference, Jeju, Korea, pp. 1176-1179, May 2017.
  6. Yildirim, C., Analysis of Grain Burnback and Internal Flow in Solid Propellant Rocket Motors in 3-Dimensions, Ph.D. Thesis, Middle East Technical University, 2007.
  7. Cavallini, E., Modelling and Numerical Simulation of Solid Rocket Motors Internal Ballistics, Ph.D. Thesis, Sapienza Universita di Roma, 2009.
  8. Kim, K.M., Kim, J.E., Lim, J.I. and Park, S.H., "Development of the Dual Thrust Rocket Motor with Two Kinds Propellant", Journal of the Korean Society of Propulsion Engineers(to be published).