| 摘要 |
FIELD: machine building.SUBSTANCE: test rig contains a base, on which additional plates with secured vibration insulation devices, and registering device are located. On base the aircraft devices are installed, for example, two similar onboard compressors for compressed air production on board of the aircraft, at that one compressor is installed in standard rubber vibrator isolators, and another compressor is installed on tested two-weight vibration insulation system. This system comprises rubber vibrator isolators and elastic deformation intermediate plate with the vibrator isolators, for example, in form of polyurethane plates, that similar to the standard rubber vibrator isolators of the compressor are installed on rigid partition, that via the shock-absorbing gasket is installed on the base. On the rigid partition between the compressors the vibration detector is installed its signal enters the amplifier and registration devices, for example octave spectrometer operating in frequency band. At that the obtained amplitude-frequency characteristics due to each compressor operation are compared, and conclusions are made on the vibration insulation efficiency of each system, on which they are installed.EFFECT: extension of process possibilities of testing of the objects having several elastic constraints with hull structures of the aircraft.2 cl, 5 dwg |
