| 摘要 |
FIELD: test equipment.SUBSTANCE: invention relates to test equipment and can be used for vibroacoustic tests of various systems having elastic connections with structural parts of the object. Method involves arranging on a base by means of at least three vibration absorbers a bulkhead representing a single-mass oscillating system with weight and rigidity respectively mand c, and the generator of harmonic oscillations used is an eccentric vibrator arranged on the bulkhead. Onto the bulkhead there is a rack for testing fundamental frequencies of elastic elements of spring and disk vibro-dampers of different length, geometrical parameters, as well as of different mass values fixed at the ends of those tested elements. Herewith oscillations of the mass fixed on each elastic element are recorded by a displacement indicator, by readings of which a resonance frequency is determined corresponding to 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, herewith to adjust the bench operation a frequency meter and a phase meter are used.EFFECT: technical result is expansion of technological capabilities of testing objects.4 cl, 7 dwg |
