Fatigue Reliability Sensitivity Analysis of Complex Mechanical Components under Random Excitation

Table 4

Stress spectrum of dangerous position.

Stress grade (i)	Stress amplitude (MPa)	Frequency
1	173	1.0500𝑒2
2	166	1.1130𝑒4
3	158	7.1757𝑒5
4	142	1.8335𝑒7
5	124	6.4214𝑒7
6	96.7	2.1203𝑒7
7	72.6	5.1734𝑒5
8	61.4	1.3650𝑒3