Parameter meanings	Parameter symbols	Parameter values
Shape parameters	β	3.2
Scale parameters	α	120
Time of single preventive maintenance	t_p	20
Time of single minor repair	t_f	10
Cost of unit downtime	c_o	30
Cost of single preventive maintenance	c_p	100
Cost of single minor repair	c_f	50
Cost adjustment factor	u	1
Cost of equipment replacement	C_r	40,000
Time adjustment parameter	v	0.005
Learning effect adjustment parameter	w	0.8
Equipment running time	T	3000
Lowest reliability threshold	R_min	0.7