A factory needs a special machine for each of the next seven years and plans to buy a new machine now. The machine is in
Posted: Wed May 04, 2022 7:24 am
A factory needs a special machine for each of the next seven years and plans to buy a new machine now. The machine is inspected at the end of every year and then either refurbished for use in the following year or replaced by a new one. The overhaul cost and residual value depend on the age of the machine and are given in the table below. A machine that has been in use for five years cannot be refurbished and must be replaced. A new machine costs €10 000. Determine an optimal maintenance- replacement schedule using a shortest-path problem in an acyclic network. Age 1 2 3 4 5 €800 €900 €1100 €1600 Overhaul Cost Residual Value €6000 €5000 €4000 €1500 €500