A New Maintenance Optimization Model Based on Three-Stage Time Delay for Series Intelligent System with Intermediate Buffer

Table 5

The lowest cost rate with the optimal monitoring time of the machine of the intelligent series system and the optimal buffer stock for .

of machine (in days)	29	28	27
of buffer (in units)	79	79	79
Cost rate(in $/year)	282137.8	280804.5	281065.1