Table 10.

Fatigue lives of critical points under combined excitation.

Critical Points	Damages	Lives (h)
A1	1.50 × 10−13	1.85 × 1010
A2	6.67 × 10−9	4.16 × 105
A3	1.78 × 10−16	1.56 × 1013
A4	1.38 × 10−10	2.01 × 107
A5	1.12 × 10−22	2.48 × 1019
A6	1.29 × 10−7	2.15 × 104
B1	2.84 × 10−16	9.78 × 1012
B2	7.91 × 10−11	3.51 × 107
B3	6.18 × 10−22	4.50 × 1018
B4	1.64 × 10−13	1.69 × 1010
B5	5.86 × 10−24	4.74 × 1020
B6	6.30 × 10−8	4.41 × 104