FIELD: test equipment.
SUBSTANCE: invention relates to testing equipment. This is achieved by the fact that in a test bench for vibroacoustic testing of samples and models containing a base, on which, through at least three vibration isolators, a bulkhead is fixed, which is a single-mass oscillatory system of mass and rigidity of m2 and c2, respectively, as then oscillator of harmonic oscillations, the eccentric vibrator is used, which is located on the bulkhead, and on the bulkhead a test bench for testing the natural frequencies of elastic elements of spring and disk vibration isolators of different lengths, of geometric parameters, as well as of different masses that are attached to the ends of these test elements, while the oscillations of the mass fixed on each elastic element, are fixed by the displacement indicator, according to readings of which resonant frequency is determined, corresponding to each resilient element parameters, and on the base and the bulkhead the vibration acceleration sensors are fixed, signals from which sent to the amplifier, then the oscilloscope, the magnetograph and the computer for processing the information received are installed, where the frequency meter and the phase meter are used in order to adjust the work of the test bench.
EFFECT: expansion of technological possibilities for testing objects having several elastic connections with body parts.
1 cl, 8 dwg
