FIELD: aircraft industry; aircraft engines; testing facilities.
SUBSTANCE: invention is designed for testing of aircraft vectored thrust engines on test stands with measuring of thrust components ±Rx, ±Ry, ±Rz at high accuracy and stability of measurements at direct and reverse operation of engine. According to invention, all force sensors for measuring components of thrust force ±Rx, ±Ry, ±Rz are furnished with additional leverages and are loaded before testing with designed weights Gx, Gy, Gz providing playless operation of force measuring leverages when determining values of components of thrust force -Rx, -Ry, -Rz at reversing of engine under testing and equality of gear ratios of two pairs of force receiving levers operating in parallel and taking up load from dynamometric platform, and two pairs of force measuring levers interacting with force sensors and provides equalizing of forces of connecting hinge joints from moments relative to axes X, Y, Z which prevents relative influence of forces on measured components of thrust forces ±Rx, ±Ry, ±Rz .
EFFECT: improved accuracy of measurements.
3 dwg
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