Modeling and Optimizing the Composite Prepreg Tape Winding Process Based on Grey Relational Analysis Coupled with BP Neural Network and Bat Algorithm

Table 4 Experimental verification of BP neural network model

No	T	F	P	V	Experiment results		GRG value		Error (%)
No	T	F	P	V	Tensile strength (MPa)	Void content (%)	Simulation	Experiment	Error (%)
1	91	325	659	7.8	972.83	0.59	0.62854	0.67143	6.39
2	73	60	1327	5.6	1088.42	0.41	0.57304	0.54732	4.49