FIELD: test equipment.
SUBSTANCE: invention relates to testing equipment. Method consists in fixing a bulkhead, which is a single-mass oscillatory system, on the base, by means of at least three vibration isolators. Wherein as a harmonic oscillations generator, an eccentric vibrator is used and placed on the bulkhead, on the bulkhead, a stand is installed for testing 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. At that, oscillations of the mass fixed on each resilient element are fixed by displacements indicator, according to readings of which resonant frequency is determined, corresponding to each resilient element parameters. And on the base and on the bulkhead, the vibration acceleration sensors are fixed, the signals from which are sent to the amplifier, then the oscilloscope, the magnetograph and the computer for processing the information received are installed, wherein the frequency meter and phase meter are used to adjust the work of the stand, at the same time to determine natural frequencies of each of analyzed systems of vibration isolation, simulation of impact pulse loads is performed. On each of systems, waveforms of free oscillations are recorded, while decoding of which the natural frequencies of the vibration isolation systems and the logarithmic increment are determined according to the formula.
EFFECT: technical result is expansion of technological capabilities of testing objects having several flexible links with structural parts.
1 cl, 8 dwg
