45 Identification of Acoustic Emission Signals …
521
Initial population
Calculation fitness
Calculate
nest parameters
Update
nest parameters
Determine the BP network
topology
Initialization
weight and threshold
Optimal
weight and threshold
Update
nest location
Whether to reach
generation
Calculation error
Update
weight and threshold
Training result
CS part
BP part
Yes
No
Fig. 45.2 The flow chart of CSBP
Fig. 45.3 Vibration and fault simulation test platform for rotating machinery
the sampling frequency is 3 MHz, the threshold value is 40 dB, and other parameters
are selected as the default parameters of the PCI-2 acquisition card. The parameters
are shown in Table 45.1.