Dynamic Analysis of Tapered Thin-Walled Beams Using Spectral Finite Element Method

Table 1

Comparison of the first four flexural modal frequencies of a tapered cylinder beam.

Order	First mode	Second mode	Third mode	Fourth mode
SFE (Hz)	0.870	3.629	8.631	16.551
ANSYS (Hz)	0.876	3.658	8.716	16.762
Error (%)	0.68	0.79	0.98	1.26