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로켓기반 공기흡입추진 엔진이 적용된 재사용 발사체의 요구 성능 및 중량 분석

Performance Requirement Analysis and Weight Estimation of Reusable Launch Vehicle using Rocket based Air-breathing Engine

  • Lee, Kyung-Jae (Engine System Research Team, Korea Aerospace Research Institute) ;
  • Yang, Inyoung (Engine System Research Team, Korea Aerospace Research Institute) ;
  • Lee, Yang-Ji (Engine System Research Team, Korea Aerospace Research Institute) ;
  • Kim, Chun-Taek (Engine System Research Team, Korea Aerospace Research Institute) ;
  • Yang, Soo-Seok (Aero propulsion Division, Korea Aerospace Research Institute)
  • 투고 : 2015.09.24
  • 심사 : 2015.11.11
  • 발행 : 2015.12.01

초록

로켓 기반 공기흡입추진(RBCC : Rocket Based Combined Cycle) 엔진이 적용된 재사용 발사체의 요구 중량 및 성능을 분석하고 예측하였다. RBCC 엔진을 위해 개발한 엔진 모델과 비행체 궤적 모델을 통합하여 RBCC 기반 재사용 발사체의 궤적 및 성능계산 모델을 개발하였으며, 기존 논문의 결과와 비교함으로써 검증하였다. 개발된 모델과 기존 논문을 바탕으로 총 이륙중량 15톤의 재사용 발사체에 대한 무게분석과 엔진의 요구 조건을 도출하였으며, 엔진의 모드 전환 마하수 변화 등에 따른 비행체의 추진제 요구량 변화를 분석하였다.

Performance requirement analysis and weight estimation of a reusable launch vehicle with a rocket-based air-breathing engine(RBCC : Rocket Based Combined Cycle) were performed. Performance model for an RBCC engine was developed and integrated with flight trajectory model. The integrated engine-trajectory model was validated by comparing the results with those from previous research reference. Based on the new engine-trajectory model and previous research results, engine performance requirements were derived for an reusable launching vehicle with gross take-off weight of 15 tones. Dependence of the propellant amount requirement on the mode transition Mach number of the engine was also analyzed.

키워드

참고문헌

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피인용 문헌

  1. Ramjet Mode Combustion Test for a Dual-Mode Ramjet Engine Model with a Large Backward-Facing Step vol.20, pp.6, 2016, https://doi.org/10.6108/KSPE.2016.20.6.083
  2. Effect of thermal choking on ejection process in a rocket-based combined cycle engine vol.116, 2017, https://doi.org/10.1016/j.applthermaleng.2017.01.059
  3. Technology Development Prospects and Direction of Reusable Launch Vehicles and Future Propulsion Systems vol.44, pp.8, 2016, https://doi.org/10.5139/JKSAS.2016.44.8.686