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

  • 제47권1호
  • /
  • Pages.1-8
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  • 2019
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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비례제어밸브를 이용한 초음속 제트의 추력편향 제어

Thrust Vectoring Control of Supersonic Jet Using Proportional Control Valves

  • Lee, MyungYeon (Graduate School of Aerospace & Mechanical Engineering, Korea Aerospace University) ;
  • Lee, Yeol (School of Aerospace & Mechanical Engineering, Korea Aerospace University)
  • 투고 : 2018.07.17
  • 심사 : 2018.11.21
  • 발행 : 2019.01.01
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초록

비례제어밸브를 이용한 초음속 추력편향제어의 특성을 관찰하기 위한 실험적 연구가 진행되었다. 노즐 압력비에 따라 세 가지 서로 다른 추력편향 제어특성이 나타나고, 밸브작동에 따른 강한 이력현상이 관찰되었다. 아울러 이차챔버의 압력이 추력편향에 영향을 주는 주요 인자 중의 하나임이 확인되었다. 이에 이력현상을 회피하고 밸브제어에 따른 안정된 추력편향을 구현하기 위하여 이차챔버의 압력계수를 이용한 제어 알고리즘이 적용되었다. 그 결과 비례제어밸브를 통하여 최대 추력편향각 $20^{\circ}$ 범위에서 안정적인 추력편향제어가 구현 가능함이 확인되었다.

An experimental study is performed to observe the characteristics of the thrust vectoring control (TVC) of the supersonic jet using proportional control valves. It is observed that three different TVC characteristics exist as the nozzle pressure ratio varies. Strong hysteresis phenomena are also observed during the valve control for a certain range of the nozzle pressure ratio. It is also noticed that the secondary chamber pressure is one of the influencing parameters for the TVC. Therefore, a control algorithm utilizing the secondary chamber pressure coefficient as a predictor is applied to achieve the stable TVC avoiding the hysteresis. Consequently, the stable TVC with the maximum deflection angle of about 20-degree has been realized using the proportional control valves.

키워드

참고문헌

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