METHOD FOR FORMING SPECTRA OF RANDOM VIBRATION Russian patent published in 2018 - IPC G01M7/00 

FIELD: testing equipment.

SUBSTANCE: present invention relates to a testing technique, namely, methods for generating random vibration spectra, and can be used in engineering. Technical result is achieved due to the fact that random broadband signals are formed using at least two vibration units, measure the values of the intrinsic spectral densities of the accelerations at no less than two points at the test object installed at the simultaneously operating vibro-units, determine the values of the transfer coefficients in at least two control points on each table of the vibration plants and in the measuring points at the test object, determine the values of the transfer coefficients for the formation of random broadband signals, set the valuesof the mutual spectral densities of the accelerations simultaneously in at least two sections of the test object and at the same time in at least two measuring points of the test object determine the values of all coefficients from the transfer functions of the system "vibration tables – rigging – the object of testing", determine the transmission coefficients of random broadband signals of simultaneously operating vibrations, all operations being performed in each 1/3-octave bands of a predetermined operating range.

EFFECT: reduced time for testing large objects in at least two remote points at different levels of vibration and spectral characteristics, simplified implementation of the method due to the exclusion of various highly specialized devices with their replacement by a universal processor that performs all the required operations for the formation and recording of vibration.

3 cl, 2 dwg