FIELD: equipment testing.
SUBSTANCE: stand comprises a base on which there are additional plates with vibration isolated devices fixed on them, and the recording equipment. At that on the base the aircraft equipment is mounted, including two identical on-board compressors for compressed air on board of the aircraft, at that one compressor is mounted on regular rubber vibration isolators, and the other compressor is mounted on the test dual-mass system of vibration isolation. This system comprises rubber vibration isolators and an elastic-damping intermediate plate with vibration isolators, for example in the form of plates made of polyurethane. The latter, as well as regular rubber vibration isolators of the compressor are mounted on a rigid partition which is mounted through the vibration-damping pad on the base, and on the rigid partition between the compressors the vibration sensor is fixed, which signal is fed to an amplifier and the recording equipment, for example an octave spectrometer operating in the frequency band. Then the amplitude-frequency characteristics are compared, obtained from the operation of each of the compressors, and the conclusions are made on effectiveness of vibration isolation of each system on which they are mounted.
EFFECT: expanding the technological capabilities if testing objects having multiple elastic connections with housing parts of flying object.
2 cl, 4 dwg
