FIELD: test equipment.
SUBSTANCE: invention relates to equipment for testing instruments for vibration and impact effects. Method involves installation of two identical analyzed objects on different systems of vibration isolation thereof and carrying out measurements of their amplitude-frequency characteristics. Then the obtained characteristics are compared and conclusions are made on vibration isolation efficiency of each of the analyzed systems. Herewith to determine fundamental frequencies of each of the analyzed systems of vibration isolation performed is simulation of impact pulse loads on each of the systems and recorded are waveforms of free oscillations. Besides, for measuring amplitude-frequency characteristics of the base an additional sensor is installed, the signal from which is directed to an amplifier, and a spectrometer for producing the vibration transfer coefficients from the base through a rigid bulkhead with installed onboard compressors, and when processing the obtained amplitude-frequency characteristics found are optimal characteristics: rigidity and damping factor of each of the vibration isolation system.
EFFECT: expanded process functionality of testing objects having several flexible links with aircraft structural parts.
1 cl, 5 dwg
