中国物理B ›› 2017, Vol. 26 ›› Issue (11): 114702-114702.doi: 10.1088/1674-1056/26/11/114702

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Aerodynamic measurement of a large aircraft modelin hypersonic flow

Bao-Qing Meng(孟宝清), Gui-Lai Han(韩桂来), De-Liang Zhang(张德良), Zong-Lin Jiang(姜宗林)   

  1. 1. State Key Laboratory of High-temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2017-04-14 修回日期:2017-06-11 出版日期:2017-11-05 发布日期:2017-11-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11472281 and 11532014).

Aerodynamic measurement of a large aircraft modelin hypersonic flow

Bao-Qing Meng(孟宝清)1,2, Gui-Lai Han(韩桂来)1, De-Liang Zhang(张德良)1,2, Zong-Lin Jiang(姜宗林)1,2   

  1. 1. State Key Laboratory of High-temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-04-14 Revised:2017-06-11 Online:2017-11-05 Published:2017-11-05
  • Contact: Gui-Lai Han E-mail:hanguilai@imech.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11472281 and 11532014).

摘要: Accurate aerodynamic measurements in the hypersonic flow of large aircraft models in tunnels have practical significance, but pose a significant challenge. Novel aerodynamic force measurement methods have been proposed,but lack theoretical support. The forms of the force signals techniques for signal processing and calculation of aerodynamics are especially problematic. A theoretical study is conducted to investigate the dynamic properties based on models of the draw-rod system and slender rods. The results indicate that the inertia item can be neglected in the rod governing equation; further, the solutions show that the signals of each rod are a combination of aerodynamic signals (with a constant value) and sine signals, which can be verified by experimental shock tunnel results. Signal processing and aerodynamics calculation techniques are also found to be achievable via the flat part of the signals.

关键词: hypersonic, aerodynamic measurement, theoretical study, vibration

Abstract: Accurate aerodynamic measurements in the hypersonic flow of large aircraft models in tunnels have practical significance, but pose a significant challenge. Novel aerodynamic force measurement methods have been proposed,but lack theoretical support. The forms of the force signals techniques for signal processing and calculation of aerodynamics are especially problematic. A theoretical study is conducted to investigate the dynamic properties based on models of the draw-rod system and slender rods. The results indicate that the inertia item can be neglected in the rod governing equation; further, the solutions show that the signals of each rod are a combination of aerodynamic signals (with a constant value) and sine signals, which can be verified by experimental shock tunnel results. Signal processing and aerodynamics calculation techniques are also found to be achievable via the flat part of the signals.

Key words: hypersonic, aerodynamic measurement, theoretical study, vibration

中图分类号:  (Supersonic and hypersonic flows)

  • 47.40.Ki
46.40.-f (Vibrations and mechanical waves) 46.80.+j (Measurement methods and techniques in continuum mechanics of solids)