Research on Dynamic Modeling and Application of Kinetic Contact Interface in Machine Tool

Table 3

The first-six-order natural frequencies of overall machine tool (unit: Hz).

Order	FEM model frequency	Experimental measured frequency	Error
1	27.5	25.8	6.6%
2	53.7	50.3	6.8%
3	55.1	55.9	1.4%
4	78.7	68.0	14.7%
5	83.0	85.6	3.0%
6	115.7	107.9	7.2%