METHOD FOR VIBRATION TESTING OF ARTICLES Russian patent published in 2020 - IPC G01M7/00 

FIELD: physics.

SUBSTANCE: invention relates to vibrometry. Method of vibration tests of articles consists in the fact that harmonic vibration reproduced on single-component electrodynamic shaker is measured simultaneously in even number of control points, lying in pairs in each of mutually orthogonal intersecting planes on different sides from intersection of planes, which coincides with working axis of vibration table. In-band signal values of each pair of control points are used to isolate in-phase components which are used to generate a feedback signal. Control points of each pair of points are located in one of intersecting mutually orthogonal planes with known distances to the working table of the vibration table, selected depending on design features of attachment of the article to the vibration table, from instantaneous current values of simultaneously measured signals of each pair of control points located in one of intersecting planes, but not less than for two different pairs of points, in-phase components are found by means of averaging of said signals with weight coefficients, which are determined by given formulas.

EFFECT: technical result is increase of measurements.

1 cl, 3 dwg