A Study on Mode Shape and Natural Frequency of Rotating Flexible Cracked Annular Thin Disk

Figure 7

Vibration test equipment for rotating flexible cracked annular thin disk: 1, tachometer; 2, electromagnet; 3, displacement sensor; 4, motor assembly with flexible cracked disk; 5, bracket; 6, magnetic base; 7, motor driver; 8, DC regulated power; 9, displacement sensor controller; 10, adjustable DC power; 11, data acquisition board; 12, relay; 13, microphone; 14, motor base.