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Estimation and Uncertainty Evaluation on Mass Flow Rate of Air Intake by Using Air Data

비행정보를 이용한 흡입구의 공기유량 추정 및 불확도 평가

  • Park, Iksoo (4th R&D Institute, Agency for Defense Development) ;
  • Park, Jungwoo (4th R&D Institute, Agency for Defense Development) ;
  • Ki, Taeseok (4th R&D Institute, Agency for Defense Development) ;
  • Choi, Jin (4th R&D Institute, Agency for Defense Development) ;
  • Lee, Juyoung (4th R&D Institute, Agency for Defense Development)
  • Received : 2017.05.23
  • Accepted : 2017.09.19
  • Published : 2018.06.01

Abstract

An estimation law of air mass flow rate for high speed engine control is presented. The variables of mass estimation equations are modified to measurable variables which can be obtained during flight, and the effectiveness of each variable to the estimation accuracy is evaluated. The equation is modified to a simplified form, and the uncertainty is evaluated. In addition, reference data for the selection of estimation methods is suggested by considering the sensitivity analysis of sensor error.

초고속 엔진을 제어하는데 필요한 엔진으로 유입되는 공기유량의 추정기법에 대해 제안하였다. 비행 중 획득 가능한 정보를 활용하기 위하여 공기유량 계산식을 비행 중 측정 가능한 변수로 변경하였고, 추정 정확도에 대한 각각 변수의 기여도를 평가하였다. 제안한 추정식은 간단한 형태로 변형하였고, 측정 불확도를 분석하였다. 아울러 센서의 오차에 따른 민감도 분석을 통하여 공기유량 추정 기법 선택을 위한 참고자료를 제시하였다.

Keywords

References

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