Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Dynamic Analysis of a Flow Passage Opening Device in Flight Profile of a High-speed Vehicle

고속 비행체의 비행궤적별 유로개방장치 동역학 해석

  • Jung, Sungmin (The 4th R&D Institute, Agency for Defense Development) ;
  • Park, Jeong-Bae (The 4th R&D Institute, Agency for Defense Development)
  • Received : 2015.07.21
  • Accepted : 2015.09.14
  • Published : 2015.10.01
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Abstract

A flow passage opening device utilizing an acceleration follow-up technique allows fuel to flow continuously through a pressurized fuel tank system. It is very difficult to test the device in a real flight situation because of severe test condition and a cost problem. In this paper, therefore, the results of a basic negative g test conducted by low-speed airplane are compared with RecurDyn simulation. Dynamic behavior of the device in total flight profile of a high-speed vehicle is also analyzed by using RecurDyn to predict its performance.

가속도추종 유로개방장치는 고속 비행체의 가압식 연료탱크에서 연료가 쏠림현상으로 인해 단절되는 것을 막아 연속적으로 흐르게 한다. 기개발된 이 유로개방장치를 실제 고속으로 시험하는 것은 까다로운 시험조건과 비용문제로 많은 어려움이 따른다. 따라서 본 논문에서는 저속 항공기에 탑재해 기본적인 역중력 시험(Negative-g test)을 수행하고 RecurDyn으로 해석한 결과와 비교하였다. 그리고 고속비행체의 비행궤적에 따른 유로개방장치의 동역학적 거동을 RecurDyn으로 알아보았다.

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References

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