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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (8): 2417-2425.doi: 10.7527/S1000-6893.2016.0154

• Numerical Simulation and Wind Tunnel Test Technologies • Previous Articles     Next Articles

Double degree-of-freedom large amplitude oscillation test technology in low speed wind tunnel

LIU Chunming1, ZHAO Zhijun2, BU Chen1, WANG Jianfeng1, MU Weiqiang1   

  1. 1. AVIC Aerodynamics Research Institute, Harbin 150001, China;
    2. China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2016-01-25 Revised:2016-05-23 Online:2016-08-15 Published:2016-06-12
  • Supported by:

    Aeronautical Science Foundation of China (20143203002)

Abstract:

AVIC Aerodynamics Research Institute developed a double degree-of-freedom large amplitude oscillation testing technique based on driving technology coupled hydraulic motor and servo motor in FL-8 wind tunnel in order to study the aircraft unsteady aerodynamics during post maneuver at high angle-of-attack. This paper presents the basic components and test principle, as well as the FL-8 wind tunnel test results of the standard model test. It is indicated that the system has high stability, reliability and repeatability precision. The technology can be effectively applied to studying and predicting the aerodynamic characteristics of double degree-of-freedom coupled motion.

Key words: high angle-of-attack, large amplitude oscillation, double degree-of-freedom, unsteady aerodynamics, wind tunnel test

CLC Number: