Rolling forced vibration dynamic derivative test device for high-speed flying wing model under large attack angle
A test device and dynamic derivative technology, applied in aerodynamic tests, measuring devices, aircraft component testing, etc., can solve dynamic stability and control constraints The wide application of flying wing layout aircraft, lack of control efficiency, uncontrollable instability, etc. problems, to achieve the effect of improving stability and smoothness, improving stiffness and improving measurement accuracy
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[0065] When using the roll 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 model Connected together, the theoretical center of mass of the test model coincides with the rotation line 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 28, so that the model can perform a simple harmonic of the specified frequency and amplitude sports. During the test, the force, torque signal and angular displacement signal of the signal measuring device are measured synchronously, and the corresponding dynamic stability derivative can be obtained by corresponding processing of the two sig...
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