Genetic Algorithm for Mixed Integer Nonlinear Bilevel Programming and Applications in Product Family Design

Table 8

Results.

	Platform variables		Customization variables			Upper-level goal	Lower-level goal	Evaluation of fatigue stress
	Diameter of high-speed shaft	Total number of gears	Diameter of low-speed shaft	Number of teeth of high-speed gear	Selections in metal	Overall evaluation of reducer family	Cost of reducer
Reducer A	52.2627	159.6643	77.4652	57.0171	A					50
Reducer B			64.0830	43.0684	A	50
Reducer C			79.6435	34.6496	B	79