METHOD FOR VIBRATION TESTING OF AN OBJECT ON AN ELECTRODYNAMIC VIBRATION STAND Russian patent published in 2022 - IPC G01M7/00 

FIELD: objects testing.

SUBSTANCE: invention relates to the field of testing objects for dynamic effects. The method for vibration testing of an object (OT) on an electrodynamic vibration stand includes the synthesis of the initial time signal of vibro-impact loading, which is carried out by summing harmonics from a given test range, the subsequent reproduction of the synthesized initial time signal as a reference time profile is performed with automatic feedback control by the "amplifier-vibration stand" system , while the collection of time data at the selected control points of the OT is carried out interactively with the subsequent calculation by the operator of the transfer functions characterizing the influence of the system "amplifier-vibrator-transition device-OT " for the selected point, synthesizing the corrected time signal, when played back as a reference time profile on vibrating stand at the selected control point of the OT implement a vibro-impact load with parameters that meet the requirements of the initial data.

EFFECT: reproduction is provided using the algorithm for controlling vibro-impact tests for any selected control point of the OT of a sign-variable damping load with specified characteristics of the amplitude in time with spectral parameters in the frequency domain on a vibration electrodynamic stand without creating additional specialized technical devices aimed at simulating vibro-impact loads.

1 cl, 5 dwg