Table 1 Natural frequencies of selected... | Emerald Publishing

Table 1

Natural frequencies of selected mode shapes of several aircraft measured at IAE, frequencies are in Hz

Mode shape	Composite					Aluminum alloy
Mode shape	Low wing	Low wing	Low wing	Low wing	High wing	Low wing	High wing
Wing first symmetric bending	8.0	8.3	10.0	7.6	11.6	12.3	14.8
Wing first antisymmetric bending	18.4	17.5	18.4	16.7	19.9	32.8	30.5
Tail roll	12.2	11.8	14.4	13.2	16.4	15.7	15.2
Fuselage first vertical bending	18.7	12.5	28.5	18.7	25.1	–	20.1
Fuselage first lateral bending	22.8	21.7	18.2	21.8	19.3	21.7	17.6
Stabilizer first symmetric bending	30.2	29.4	28.5	27.6	25.1	38.7	41.5
Fin first bending	28.8	21.7	33.6	29.5	24.2	28.5	45.4

Mode shape	Composite					Aluminum alloy
Mode shape	Low wing	Low wing	Low wing	Low wing	High wing	Low wing	High wing
Wing first symmetric bending	8.0	8.3	10.0	7.6	11.6	12.3	14.8
Wing first antisymmetric bending	18.4	17.5	18.4	16.7	19.9	32.8	30.5
Tail roll	12.2	11.8	14.4	13.2	16.4	15.7	15.2
Fuselage first vertical bending	18.7	12.5	28.5	18.7	25.1	–	20.1
Fuselage first lateral bending	22.8	21.7	18.2	21.8	19.3	21.7	17.6
Stabilizer first symmetric bending	30.2	29.4	28.5	27.6	25.1	38.7	41.5
Fin first bending	28.8	21.7	33.6	29.5	24.2	28.5	45.4

Source(s):

Table created by authors