Test mechanism for rapidly changing model attitude angle
A model attitude and fast technology, applied in aerodynamic tests, machine/structural component testing, measuring devices, etc., can solve problems such as angle distortion that cannot be corrected, model attitude angle distortion, and weak stiffness of π-shaped brackets, etc., to achieve The effect of convenient amplitude adjustment, small structural damage, and small structural dependence
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[0033] The present invention is a test mechanism for rapidly changing the attitude angle of the model. The rapid drive of the mechanism causes the aircraft model to perform large-scale sinusoidal vibration in the wind tunnel. Measurement of dynamic aerodynamic characteristics of large pitch oscillation states. The mechanism has the characteristics of high stiffness, high position accuracy, small rapid return characteristics and convenient amplitude adjustment.
[0034] like figure 1 , figure 2 , image 3 and Figure 4 As shown, a test mechanism for rapidly changing the attitude angle of the model has two parts: a fixed device and a moving device. The fixed device supports the whole system, and the moving device can convert mechanical power to realize the rapid change of the model attitude. The fixing device includes a connecting cover 102, a curved knife mechanism 104, an arc guide 105, a lower connecting seat 103, a connecting device 106, a guide rod 107, an outer casin...
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