December 10, 2013
The focus of the proposed research is on advanced capital goods such as lithography systems, trains, and baggage handling systems. Users of such systems (manufacturers of integrated circuits, railways, airports) are highly dependent on these systems and thus require high system availabilities, i.e., high percentages of time that the systems are up and running. Simultaneously, they want low total costs for the initial buy of a system, the maintenance and service logistics during the long usage period and the disposal costs at the end of the life cycle. These costs are denoted as the Total Cost of Ownership (TCO).
The proposed research is aimed at logistics control innovations that simultaneously increase system availability and decrease TCO. The focus will be on industries where the maintenance of the installed systems in the field is executed by the Original Equipment Manufacturer (e.g., ASML) or a large maintenance organization (e.g., Nedtrain). In the first two subprojects, we develop new logistics control concepts for the service supply chain, which supplies spare parts within tight time constraints: (i) a system-focussed inventory control concept for the whole chain consisting of one or more central depots and many local warehouses; (ii) a concept for the interaction between the service supply chain and the repair loops for repairable parts. In the third subproject, we develop quantitative models that show the effect of component reliabilities and redundancy on downtime, service logistics costs and TCO. In that way, we get quantitative support for (re)design decisions for capital goods.