Dynamic Behavior of Supported Structures from Free-Free Modal Tests Using Structural Dynamic Modification

Table 10

Experimental, numerical, and predicted natural frequencies for pinned-free configuration.

Vertical axis
Mode	Natural frequency (Hz)			Error (%)
	Experimental	Predicted (Equation (9))	Numerical	Experimental − predicted	Experimental − numerical
1	25.25	25.74	24.02	−1.94	4.87
2	33.57	33.88	31.12	−0.92	7.30
3	80.68	77.42	78.22	4.04	3.05
4	104.10	95.02	98.97	8.72	4.93
5	127.52	132.33	131.47	−3.77	3.10
6	187.28	187.42	189.65	−0.07	1.27