Design Optimization of Composite Laminated Tube Based on Improved Niching Evolutionary Algorithm

Table 6

Optimal design values of composite drive shaft based on GA and INDE.

	t (mm)		Optimum Stacking sequence	T (Nm)	Tcr (Nm)	Ncrt (rpm)	m (kg)	m saving (%)
GA	0.4	17	[46/−64/−15/−13/39/−84/−28/20/−27	3525	29857	6515	4.44	—
INDE	0.4788	11	[36.6/42.3/−26.1/−32.6/−30.1/21.9	3537	11532	6517	3.54	20.27
	0.4438	12	[−29.9/66.1/−25.3/26.6/−28.1/27.1	3504	13906	6762	3.54	20.27
	0.3657	14	[−27.9/23.6/−27.2/52.1/−28.9/30.2/−26.9	3502	11228	6793	3.41	23.20
	0.3716	15	[29.2/−30.9/−34.3/56.9/−12.7/26.3/−28.9/68.8	3522	15558	6684	3.70	16.67
	0.2642	21	[−29.0/35.9/−25.5/35.9/−28.4/37.2/−33.9/36.1/−19.1/17.4/−28.6	3547	13094	6774	3.68	17.12
	0.2294	24	[−30.6/13.6/−23.6/52.1/−25.8/54.0/−28.1/26.9/−21.5/−27.7/−28.6/60.4	3504	14804	6750	3.65	17.79

Symbol “s” means the Optimum Stacking sequence is symmetrically arranged and italic font means the ply is unique.