Modeling of the Feed-Motor Transient Current in End Milling by Using Varying-Coefficient Model

Table 3

The result of VCM method.

Spindle speed		Total	500	600	700	800	1000	1200
VCM		0.9806	0.9910	0.9900	0.9876	0.9763	0.9768	0.9647
	MRE	5.99%	6.19%	4.64%	5.91%	6.63%	5.41%	7.14%
Fourier series		—	0.9690	0.9641	0.9548	0.9348	0.9378	0.8924
	MRE	—	5.36%	5.21%	5.80%	6.76%	6.71%	8.56%