STRENGTH TEST BENCH CONTROL SYSTEM Russian patent published in 2018 - IPC G01M5/00 G01M17/00 

FIELD: test and measurement equipment.

SUBSTANCE: invention relates to the field of measuring and testing equipment and can be used to generate variable loads in cyclic software tests for the aviation structures reliability and operational life determination. Strength test bench control system contains controlled object, hydraulic drive comprising the electrohydraulic distributor and hydraulic cylinder, feedback sensor (dynamometer), mismatch meter with the summing input and subtracting input, force load reference value generator and control unit. Control system additionally comprises the high frequency oscillations amplitude estimating unit, calculator and multiplier, wherein the high frequency oscillations amplitude estimating unit input is connected to the mismatch meter output, high frequency oscillations amplitude estimating unit output is connected to the calculator input, the multiplier first input is connected to the control unit output, multiplier second input is connected to the calculator output, and the multiplier output is connected to the electrohydraulic distributor input.

EFFECT: increase in the structures force loading set program reproduction accuracy.

1 cl, 10 dwg