Dimensional and Layout Optimization Design of Multistage Gear Drives Using Genetic Algorithms

Table 6

Comparison of the volumes between the existing gear drive and the Best solutions of Case 4, Case 6, and Case 8.

Volume items	Existing gear drive	Best of Case 4		Best of Case 6		Best of Case 8
		Volume	Reduced ratio (%)	Volume	Reduced ratio (%)	Volume	Reduced ratio (%)
(×10^6 mm^3)	4.9692	3.2607	34.4	3.2191	35.2	3.1795	36.0
(×10^6 mm^3)	1.3014	1.0555	18.9	1.0737	17.5	1.0251	21.2
VGearBox (×10^6 mm^3)	5.4954	3.8787	29.4	3.8710	29.6	3.6970	32.7
(×10^6 mm^3)	11.7660	8.1950	30.4	8.1637	30.6	7.9015	32.8