Multi-Objective Optimization of Two-Stage Helical Gear Train Using NSGA-II

Table 3

Comparison of results.

Variables and objectives	Catalog value	Optimization toolbox value; (round off)	GA (round off)	NSGA-II (round off)
Face width of gear (mm)	70	60	60	67
Module of gear (mm)	7	4	4	4
Number of teeth of gear	14	18	18	18
Number of teeth of gear	44	56	58	57
Face width of gear (mm)	95	85	85	86
Module of gear (mm)	3.5	3	3	3
Number of teeth of gear	14	18	18	18
Number of teeth of gear	77	100	100	99
Volume (mm^3)	2.293 × 10^7	2.0408 × 10^7	2.0602 × 10^7	1.993 × 10^7
Load carrying capacity (N)	3.405 × 10^4	3.2861 × 10^4	3.2874 × 10^4	3.4383 × 10^4