Structure Dynamic Response of Amphibious Aircraft Induced by Water-Taxiing

Table 2

Computation of modal frequencies.

	Mode	Dry modal	Wet modal
			High-speed taxi	Low-speed taxi
1	1st wing symmetric bending	1.000	0.913	0.869
2	1st VT bending	1.000	0.997	0.955
3	1st wing antisymmetric bending	1.000	0.999	0.974
4	1st VT torsion	1.000	0.998	0.926
5	1st wing horizontal bending	1.000	1.000	0.999
6	1st fuselage vertical bending	1.000	0.984	0.962
7	1st fuselage horizontal bending	1.000	0.988	0.981
8	1st HT antisymmetric bending	1.000	0.983	0.820
9	1st HT symmetric bending	1.000	1.000	0.896
10	1st wing antisymmetric torsion	1.000	0.998	0.957
11	1st wing symmetric torsion	1.000	1.000	0.996
12	2nd wing symmetric bending	1.000	0.899	0.876
13	2nd wing antisymmetric bending	1.000	0.965	0.887
14	1st fuselage torsion	1.000	0.975	0.911
15	1st HT symmetric torsion	1.000	0.988	0.919
16	1st HT antisymmetric torsion	1.000	0.995	0.964