Genetic Approach for Multiobjective Optimization of Epicyclical Gear Train

Table 4

Optimization results of the epicyclical gear train design.

Function variables	Mode 1	Mode 2	Mode 3	Mode 4	Mode 5	Mode 6
Number of teeth of the sun gear	21	30	21	27	21	21
Number of teeth of the planet gear	18	18	18	18	18	18
Number of teeth of the ring gear	57	66	57	63	57	57
Module	2	2	2	2.75	2	2
Shaft diameter (sun)	20	30	18	18	23	20
Shaft diameter (planet)	17	17	21	21	20	11
Width coefficient of tooth	12.00	12.17	12.50	12.14	13.70	13.01
Tooth width	24.00	24.33	25.00	33.38	27.40	26.03
Transmission ratio	−2.71	−0.45	0.26	3.34	0.73	1.37
Weight of PGT	0.276	0.312	0.280	0.664	0.375	0.342
Center distance	39	39	39	61.88	39	39