Model-Based Dynamic Structural Modification of Machine Tools

Table 3

Modal frequencies for seven first modes. Comparison of FEM and experiment results.

Mode	Frequency [Hz]		Difference [%]
	FEM	Experiment
1st	72.821	71.88	1.3
2nd	96.263	110.2	14.4
3rd	138.09	192.5	39.4
4th	210.43	269.7	28.1
5th	218.95	207.3	5.6
6th	250.36	277.1	10.6
7th	284.38	301.2	5.9