Mathematical Problems in Engineering Research on Composite Fault Separation of Rolling Bearing Based on Functional Mixing Decoupling Model

Table 1

Screening of frequency relations.

Order	First order, Hz	Second order, Hz	Third order, Hz
Group a	0.2 0.8 1	0.2 0.4 0.6 0.8 1 1.2 1.6 1.8 2	0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3
Group b	0.2 2 3.8	0.4 1.8 2.2 3.6 4 5.8 7.6	0.2 0.6 1.6 2 2.4 3.4 3.8 4.2 5.6 6 7.4 7.8 9.6 11.4
Group c	0.2 4 5	0.4 1 3.8 4.2 4.8 5.2 8 9 10	0.2 0.6 0.8 1.2 3 3.6 4 4.4 4.6 5 5.4 6 7.8 8.2 8.8 9.2 9.8 10.2 12 13 14 15