CONTROL SYSTEM FOR A STRUCTURAL TESTING STAND Russian patent published in 2022 - IPC G01M5/00 G01M17/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the field of measuring and testing equipment and can be used for generating alternating loads in cyclic software tests in order to determine the security and operating resource of aircraft structures. The system comprises a regulation object, a hydraulic drive including an electrohydraulic distributor and a hydraulic cylinder, a feedback sensor (dynamometer), an error meter with a summing input and a subtracting input, a setting apparatus for the reference value of force load, a control unit, a calculator, and a multiplier. Additionally, the system comprises a block for estimating the value of gain of the hydraulic drive, the first input whereof is connected to the output of the feedback sensor, the second input of the block is connected to the input of the electrohydraulic distributor, and the output of the block for estimating the value of gain of the hydraulic drive is connected to the input of the calculator, at the output whereof a signal is formed, with a value opposite to the input signal from the block for estimating the gain value of the hydraulic drive, received at the second input of the multiplier.

EFFECT: increase in the accuracy of reproduction of the set program of force loading of structures and elimination of the need for additional configuration of the parameters of the regulation apparatus when changing the mode of force loading or the properties of the regulation object (the loaded structure).

2 cl, 10 dwg