Analysis on Vibroacoustic Fatigue Life of Empennage in a Hypersonic Vehicle

Table 6

Sound pressure spectrum.

Frequency (Hz)	Sound pressure level	Sound pressure spectrum
25	134.8	109.9
31.5	138.1	160.7
40	138.8	174.2
50	142.0	251.8
63	144.4	331.9
80	144.6	339.6
100	144.9	351.6
125	145.1	359.8
160	144.4	331.9
200	145.1	359.8
250	146.0	399.1
315	146.5	422.7
400	147.7	485.3
500	146.8	437.6
630	148.0	502.3
800	146.8	437.6
1000	144.0	317.0
1250	144.0	317.0
1600	146.0	399.1
2000	146.8	437.6
2500	146.0	399.1
3150	145.1	359.8
4000	144.4	331.9