Table 2.

Modal analysis comparisons for three different methods. Rightmost column indicates the maximum percent difference between COMSOL predictions and the remaining two methods.

Mode	Mode shapea	Modal frequency (Hz)			Maximum difference
		Experimental	ABAQUS	COMSOL
1	z-10	75	74.17	74.52	−6.9%
2	z-20	⋯	106.55	107.08	0.50%
3	y-10	⋯	125.57	125.67	0.08%
4	x-10	⋯	133.99	134.63	0.48%
5	x-11	⋯	150.38	150.91	0.35%
6	x-20	⋯	151.32	152.08	0.50%

^aMode shape convention: Berry et al. (1994).