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UAV용 유체역학적 추력편향 노즐의 고 정확도 다분력 시험장치 개발

Development of the High-Accuracy Multi-Component Balance for Fluidic Thrust Vectoring Nozzle of UAV

  • Song, Myung-Jun (Department of Aerospace & Mechanical Engineering, Graduate School, Korea Aerospace University) ;
  • Chang, Hong-Been (Department of Aerospace & Mechanical Engineering, Graduate School, Korea Aerospace University) ;
  • Cho, Yong-Ho (Microfriends, Inc.) ;
  • Lee, Yeol (School of Aerospace & Mechanical Engineering, Korea Aerospace University)
  • 투고 : 2012.09.03
  • 심사 : 2013.01.31
  • 발행 : 2013.02.01

초록

추력편향 제어기술은 무인기의 고기동성 확보에 있어 필수적이다. 본 연구에서는 동축 코안다 효과를 이용한 초음속 사각노즐 유동의 추력편향 특성을 정량적으로 측정할 수 있는 다분력 시험장치를 개발하였다. 엄밀한 보정 및 자세한 자료분석 과정을 통하여 본 연구에서 개발된 시험장치의 로드셀 상호간섭에 의한 측정오차는 약 5% 미만임이 관찰되었고, 또한 고압 연결튜브에 의한 오차는 거의 무시할 수 있음이 판명되었다. 아울러 개발된 시험장치를 이용하여 본 연구의 동축 코안다 효과를 이용한 사각노즐의 추력편향 특성에 관한 기초적인 실험결과가 얻어졌다.

The thrust vector control technique is essential for high maneuverability of unmanned aerial vehicles. In the present study, a multi-component balance was developed to quantitatively evaluate the thrust-vectoring performance of a supersonic rectangular nozzle based on the Coanda coflowing effect. Precise calibration and detailed data analysis were performed during the development. It was found that the cross-talk errors between load cells in the balance were less than 5%, and that the unwanted errors due to high-pressure supply tubes were almost negligible, which contributed to the high accuracy of the present balance design. Some preliminary test results of the thrust-vectoring performance of the present nozzle design were also obtained and analyzed.

키워드

참고문헌

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피인용 문헌

  1. An Experimental Study on the Characteristics of Rectangular Supersonic Jet on a Flat Plate vol.17, pp.3, 2016, https://doi.org/10.5139/IJASS.2016.17.3.324
  2. Thrust Vectoring of Sonic Jet by Using Coanda Flap and Solenoid Valve vol.54, pp.9, 2016, https://doi.org/10.2514/1.J054993
  3. Bidirectional Thrust Vectoring Control of a Rectangular Sonic Jet 2018, https://doi.org/10.2514/1.J056598
  4. Application of Backstep Coanda Flap for Supersonic Coflowing Fluidic Thrust-Vector Control vol.52, pp.10, 2014, https://doi.org/10.2514/1.J052971
  5. Experimental Study of the Quantitative Characteristics of Fluidic Thrust Vectoring Nozzle for UAV vol.42, pp.9, 2014, https://doi.org/10.5139/JKSAS.2014.42.9.723