Spectral Representation of Uncertainty in Experimental Vibration Modal Data

Table 1

The first three statistical moments of the first nine measured natural frequencies; mean value, , the standard deviation , and the skewness .

[Hz]	115	145	275	396	504	530	556	704	781
[Hz]	4.60	5.90	8.93	15.22	11.92	15.92	15.35	17.98	25.95
[–]	0.485	0.366	0.895	0.292	0.166	1.086	1.312	0.622	1.419