Hierarchical Modeling and Dynamic Analysis of Hoist System in Electric Mining Shovel

Table 6

Excitation frequency of gear subsystem and motor.

Parameter			Value
Motor speed (r/min)		—	473
Motor frequency		fdm	147.6
Mesh frequency (Hz)	1st	fm1	134.0
	2nd	fm2	16.3
Shaft frequency (Hz)	Input shaft	fs1	7.9
	Intermediate shaft	fs2	1.0
	Output shaft	fs3	0.2