Optimization of Crashworthiness Parameters of Thin-Walled Conoidal Structures

Table 6

Taguchi and grey relational analysis results.

Specimen no.	Response I-Fmean			Response II-SEA			Grey rational grade	Rank
	S/N ratio	Normalized S/N ratio	Grey rational coefficient	S/N ratio	Normalized S/N ratio	Grey rational coefficient
Cone 1	3.41	0.00	0.333	8.212	0	0.333	0.333	9
Cone 2	10.91	0.46	0.482	8.968	0.163	0.374	0.428	8
Cone 3	18.04	0.90	0.835	12.019	0.823	0.739	0.787	3
Cone 4	13.73	0.64	0.579	11.454	0.701	0.626	0.602	4
Cone 5	18.74	0.94	0.900	12.720	0.975	0.952	0.926	2
Cone 6	8.82	0.33	0.427	10.622	0.521	0.511	0.470	7
Cone 7	19.64	1.00	0.999	12.837	1.00	1	1.00	1
Cone 8	10.76	0.45	0.477	11.343	0.677	0.608	0.543	6
Cone 9	15.78	0.76	0.677	10.552	0.506	0.503	0.590	5