Unbalance Identification of Speed-Variant Rotary Machinery without Phase Angle Measurement

<div>The lateral displacement response of the three-dimensional shape mode: without balancing (blue line) and with correction mass (red line); (a) the first critical speed of 800 rad/s; (b) the second critical speed of 1500 rad/s; (c) the third critical speed of 2300 rad/s.</div>

Shock and Vibration

fig6

Figure 6

Figure 6: Unbalance Identification of Speed-Variant Rotary Machinery without Phase Angle Measurement 