FIELD: instruments for investigation of physical characteristics of materials. SUBSTANCE: device has compressed air balloon 1, which is connected to charging unit 3 by means of pipe 2. Charge unit 3 provides air pressure in chamber part 5 of pneumatic gun 6 through pipe 4. Recording unit has end switch 7 which is located at section of cannon of pneumatic gun and which is connected to flash 9 by means of electric wire 8. In addition recording unit has camera 10, perforated disk 11 with electric motor 12 which is mounted on frame 13. Expansion unit has power frame 14 to which one end of dynamometer 15 is connected. Its another end is connected to investigated blade 16 with its pin part. Peripheral parts of blade receive expansion force from hydraulic jack 18 through flexible hawser 18. This expansion force simulates centrifugal force which acts on blade of axial-flow compressor of aircraft engine. Device may be used for experimental investigation of blows of particles to blade when its tension caused by centrifugal force of rotating rotor is taken into account. EFFECT: increased functional capabilities.
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