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Fig. 2.


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General diagram of vibration stand for test: 1-base, 2lower, middle and upper platforms, 3-electric motor, 4-support rollers, 5-drums, 6-load, 7-bearing units, 8-master and driven sprockets, 9-driving disk, 10-optical slot sensor, 11-linear displacement sensor, 12-spring, 13-analog-to-digital converter, 14-computer, 15-three-phase frequency converter, 16-screw type base, 17-test device, 18-noise meter-vibrometer, 19accelerometer.

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