| Selected Examples |
Assembly
In a model of manufacturing systems, there is often assembly
of subunits into larger units.
The assembly cannot occur unless all of the subunit pieces
are available.
An important component for modeling this behavior is the
Adder.
|
Figure 10.19: Assembly Unit
Figure 10.19 shows the assembly of two subunits into a larger
unit.
Each subunit line produces components as modeled by
servers 1 and 2.
These subunits queue in the buffers at the end of the
subunit assembly lines.
When the multiple server is free, it requests a transaction from
the Adder.
The Adder requests one transaction from each of the lines
going into it.
If there is a transaction available from each of these lines,
then it requests one.
When all the transactions have arrived at the Adder, it generates
a new transaction, which is sent down the arc to the multiple server.
Copyright © 2008 by SAS Institute Inc., Cary, NC, USA. All rights reserved.