Capacity analysis of two-stage production lines with many products

Abstract

ABSTRACT

Approximate analysis of production systems

“…Therefore the buffer content will sometimes increase and sometimes decrease. In De Koster [9] it is shown that the throughput (and also the distribution of the buffer content and many other line characteristics) of a two-stage line is determined almost completely by the buffer fluctuations. Actually only the first and second moments of buffer increase and buffer decrease and the expected length of an increase and a decrease period suffice for an adequate approximation.…”

“…The transitions between the four machine states (c 1, v 1, v 2, v2) of PU 1 in How this choice has to be made is explained in [9]. In the determination of the 9 parameters we have only 6 binding equations.…”

“…In this intermediate step, which is described in De Koster [9], the line of Figure 2 is first approximated by another two-stage line, however, this whole line has only four states (the line in Figure 2 may have many more states). Actually this intermediate line is of the first type as dealt with in Figure 3.…”