Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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A Study on Adaptive Design of Experiment for Sequential Free-fall Experiments in a Shock Tunnel

충격파 풍동에서의 연속적 자유낙하 실험에 대한 적응적 실험 계획법 적용 연구

  • Received : 2017.08.08
  • Accepted : 2018.09.29
  • Published : 2018.10.01
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Abstract

This study introduces an adaptive design of experiment (DoE) approach for the hypersonic shock-tunnel testing. A series of experiments are conducted to model the pitch moment coefficient of a cone as the function of the angle of attack and the pitch rate. An algorithm to construct the trajectory of the test model from the images obtained by the high-speed camera is developed to effectively analyze multiple time series experimental data. An adaptive DoE procedure to determine the experimental point based on the analysis results of the past experiments using the algorithm is proposed.

본 연구에서는 극초음속 충격파 풍동시험에 대한 적응적 실험 계획법 기반 접근법을 소개한다. 원뿔형 모델의 피치 모멘트를 받음각과 피치 각속도에 대한 함수로 모델링하기 위해 일련의 실험들을 수행하였다. 또한 다수의 시계열 실험 데이터를 효과적으로 분석하기 위해 초고속 카메라를 통해 획득한 실험 이미지로부터 실험 모델의 궤적을 구성하기 위한 알고리즘을 개발하였다. 해당 알고리즘을 활용해 이전 실험에 대한 분석 결과를 토대로 다음 실험점을 결정하는 적응적 실험 계획법을 제안한다.

Keywords

References

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