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액체 추진 로켓의 최적 연료 바이어스 산정 및 추진제 잔류량 분석

Optimal Selection of Fuel Bias and Propellant Residual Analysis of a Liquid Rocket

  • Song, Eun-Jung (Launcher Systems Design Team, Korea Aerospace Research Institute) ;
  • Cho, Sangbum (Launcher Systems Design Team, Korea Aerospace Research Institute) ;
  • Roh, Woong-Rae (Launcher Systems Design Team, Korea Aerospace Research Institute)
  • 투고 : 2014.05.20
  • 심사 : 2014.12.23
  • 발행 : 2015.01.01

초록

본 논문에서는 액체 엔진의 혼합비 오차와 추진제 탑재 오차가 성능에 미치는 영향에 대해서 분석하였다. 75톤급 엔진 4개를 클러스터링하는 발사체 모델에 대해 이런 오차에 의해 발생하는 추진제 잔류량을 확률적인 Monte-Carlo 방법을 사용하여 계산하고 잔류량을 최소화할 수 있는 최적 연료 바이어스를 도출하였다. 다른 발사체에 사용된 근사식을 사용한 해석적인 방법과 비교함으로써 얻어진 결과의 타당성을 검토하였다.

This paper considers the effects of propellant mixture ratio and loading errors on the performance of a liquid rocket. Propellant residuals generated by error sources are analyzed for a launch vehicle model whose first stage consists of a cluster rocket of four 75-tonf class engines using a statistical Monte-Carlo approach and then the optimal fuel biases minimizing residuals are computed. The results are validated through comparison with analytic method using approximate formula, which have been applied for other space launch vehicles.

키워드

참고문헌

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