FIELD: testing equipment.
SUBSTANCE: invention relates to testing equipment. Test bench comprises a base supporting two identical side compressors, herewith one of them is on standard rubber vibration isolators and the other one - on the tested two-load vibration isolation system. This system comprises rubber vibration isolators and a resiliently damping intermediate plate with vibration isolators, for example, in the form of plates from polyurethane, which, just like the standard rubber vibration isolators of the compressor are installed on a rigid bulkhead, which via a vibro-damping gasket is installed on the base. On the rigid bulkhead, between the compressors, a vibration sensor is fixed, the signal from which comes to an amplifier and a recording equipment, for example, an octave spectrometer. Herewith the obtained amplitude-frequency characteristics of each of the compressors operation are compared and conclusions are made on vibration isolation efficiency of each system. To determine fundamental frequencies of each of the analyzed vibration isolation systems simulated are impact pulse loads on each of the systems with the help of a diagnostic impact device. On the base there is a sensor for measuring amplitude-frequency characteristics of the base, the signal from which comes to the amplifier and the spectrometer.
EFFECT: provided is expansion of technological capabilities of testing objects having several flexible links with aircraft structural parts.
1 cl, 5 dwg
