FIELD: metrology.
SUBSTANCE: invention relates to metrology. On the basis of the vibration isolators, a bulkhead is fixed, which is a single-mass oscillatory system of mass and rigidity, respectively, m2 and c2, and the generator of harmonic oscillations used is an eccentric vibrator arranged on the bulkhead, on bulkhead a post is installed for testing of natural frequencies of resilient elements of spring and disc vibration isolators with different lengths, geometrical parameters, as well as different weights value, fixed at the ends of those tested elements, while the mass oscillations, fixed on each elastic element, is fixed by the displacement indicator, and according to the indications, the resonance frequency is determined, corresponding to the parameters of each elastic element, on the base and the bulkhead there are sensors of vibration acceleration, signals from which are directed to an amplifier, then an oscilloscope, a magnetograph and a computer to process the received information, while the frequency meter and phase meter are used to adjust the work of the stand, at the same time to determine fundamental frequencies of each of analyzed systems of vibration isolation simulation of impact pulse loads is performed on each of systems and waveforms of free oscillations are recorded, the decoding of which determines the natural frequencies of the vibration isolation systems and the logarithmic increment according to the known formula.
EFFECT: technical result is expansion of technological capabilities of testing facilities.
1 cl, 7 dwg
