Coupling Fault Feature Extraction Method Based on Bivariate Empirical Mode Decomposition and Full Spectrum for Rotating Machinery

Table 4

Sensitivity coefficients of EMD modal components.

IMFs	IMF1	IMF2	IMF3	IMF4	IMF5	IMF6	IMF7	IMF8	IMF9
Real part	0.831	1.634	1.875	0.73	0.455	1.344	0.495	0.393	0.543
Imaginary part	0.76	2.292	0.877	1.12	1.853	0.742	0.436	0.874	0.432