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

Table 3

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	27	27
of buffer (in units)	79	80	79
Cost rate(in $/year)	282137.8	280065.2	281066.7