An Improved Fourier Series Method for the Free Vibration Analysis of the Three-Dimensional Coupled Beams

Table 9

The frequency of the shafting with absorber f/Hz.

Model	Origin model	Absorber model
1	26.42	26.53
2	27.93	27.81
		30.44
3	55	55.16
4	79.02	79.05
5	82.41	82.58
6	134.89	135.22
7	146.75	146.89
8	175.84	176.1
9	181.77	181.9
10	271.76	271.8