Vibration Characteristics Analysis of Composite Double-Layer Explosive Vessel Shell Subjected to Explosion Loading

Table 2

IMF components’ variance contribution rates of vibration velocity signal at inner surface.

Component	Contribution rate/%
imf1	0.0011
imf2	0.0008
imf3	0.0305
imf4	0.0530
imf5	0.0524
imf6	0.0697
imf7	3.5825
imf8	4.4773
imf9	29.2185
imf10	19.5410
imf11	9.9252
imf12	6.4797
imf13	14.8017
imf14	7.4380
imf15	0.8120
imf16	1.2113
imf17	1.1991
Imf18	1.1062