Stability Analysis of Cutting Process with Internally Damped Rotating Tapered Composite Cutter Bar

Table 6

The first whirling frequencies (in Hz) of the rotating tapered composite cutter bar with different rotating speeds (ς = 0.01, L/d = 10, and σ = 0.5).

Rotational speed (rad/s)	Mode	θ
		0°		45°		90°
		ANSYS	Present (N = 3)	ANSYS	Present (N = 3)	ANSYS	Present (N = 3)
0	BW1	328.76	329.26	176.26	176.81	54.09	54.42
	FW1	328.76	329.26	176.26	176.81	54.09	54.42
500	BW1	328.46	329.18	175.80	176.63	53.70	54.37
	FW1	329.09	329.35	176.73	176.90	54.49	54.51
1000	BW1	328.14	329.09	175.34	176.44	53.31	54.32
	FW1	329.41	329.44	177.19	177.09	54.89	54.59
5000	BW1	327.61	328.41	174.73	175.97	52.27	53.83
	FW1	330.96	330.12	178.01	177.68	55.96	55.22