Multiresponse Parameter Optimization for the Composite Tape Winding Process Based on GRA and RSM

Table 7

Comparison between the initial and optimum process parameters.

	Initial process parameter value	Optimal process condition		Improvement (%)
		Prediction	Experimental value
Temperature (°C)	75	70.02	70.02
Tension (N)	300	100.08	100.08
Force (N)	1500	1515.15	1515.15
Velocity (rpm)	10	10.25	10.25
Residual stress (MPa)	13.29		11.12	16.3
Void content (%)	0.47		0.38	19.1
GRG	0.7462	0.8106	0.8123	8.8