An Experimental Test Bed for Developing High-Rate Structural Health Monitoring Methods

Table 2

Finite element and experimental natural frequencies for the DROPBEAR with the rollers at distances from the clamped end () of 46 mm, 147 mm, and 246 mm. Percent errors are relative to the experimentally obtained natural frequencies.

Cart Position ()	Mode	Experimental	Finite Element
		Natural Frequency [Hz]	Natural Frequency [Hz]	Error
46 mm	1	22.9	22.8
	2	144.8	143.4
	3	404.0	402.7
147 mm	1	33.2	33.7
	2	218.6	217.7
	3	645.2	615.6
246 mm	1	55.6	56.6
	2	352.1	355.2
	3	550.2	503.5