Dynamic derivative test device for pitching yaw forced vibration of high-speed flying wing model under large attack angle
A test device and model technology, applied in aerodynamic tests, measurement devices, aircraft component testing, etc., can solve the problems of dynamic stability and control restricting the wide application of flying-wing aircraft, uncontrollable instability, and lack of control efficiency. , to achieve the effect of improving measurement sensitivity, improving measurement accuracy, and improving stiffness and strength
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[0063] When using the pitching and yaw forced vibration dynamic derivative test device of the present invention under the large angle of attack of the high-speed flying wing model to carry out the test, the 10 ° turning head of the device is installed on the scimitar of the wind tunnel, and the front end of the signal measuring device and the flying wing The models are connected together, the theoretical center of mass of the test model coincides with the rotation center of the signal measuring device, the motor drive device is controlled to rotate at a specified frequency through the motor control system, and the amplitude is adjusted through the eccentric shaft 15, so that the model can be simplified at the specified frequency and amplitude. Harmonic motion, the switching between pitch vibration and yaw vibration can be realized by rotating the strut 12 by 90°. During the test, the force, torque signal and angular displacement signal of the signal measuring device are measure...
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