Mathematical Problems in Engineering / 2014 / Article / Tab 2

Research Article

Study on the Method for Collecting Vibration Signals from Mill Shell Based on Measuring the Fill Level of Ball Mill

Table 2

Vibration frequency of mill shell caused by impact of each layer balls.

The serial number of balls layerFrequency at first mode of vibration (Hz) Frequency at 15th mode of vibration (Hz)Scope of vibration frequency of mill shell (Hz)

14606900460~6900
24747110474~7110
34887320488~7320
45047560504~7560