Inicio  /  Aerospace  /  Vol: 7 Par: 2 (2020)  /  Artículo
ARTÍCULO
TITULO

Remote and Feedback Control of the Flap Angle in a Wind Tunnel Test Model by Optical Measurement

Kazuhisa Chiba    
Tatsuro Komatsu    
Hiroyuki Kato and Kazuyuki Nakakita    

Resumen

We have developed a remote and precise feedback control system using optical measurement technology to alter the angle of a flap, which is part of a wind tunnel test model, automatically and to earn the aerodynamic data efficiently. To rectify the wasteful circumstance that Japan Aerospace Exploration Agency (JAXA)?s low-turbulence wind tunnel stops ventilation every time to switch model configurations, we repaired hardware for remote operation and generated software for feedback control. As a result, we have accomplished a system that dramatically advances the efficiency of wind tunnel tests. Moreover, the system was able to consider the deformation of the model through optical measurement; the system controlled flap angles with errors less than the minimum resolution of optical measurement equipment. Consequently, we successfully grasped the nonlinearity of three aerodynamic coefficients CL" role="presentation">????CL C L , CD" role="presentation">????CD C D , and CMp" role="presentation">??????CMp C M p that was impossible so far.

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