130
5 Development of a Simulation-based Methodology …
time dependent
events call
general
function
general functions call
specific functions
defined in every
machine logic
Figure 5.27 Starting and ending of production shifts
Special parameters ensuring, that only one part at a time is processed for
CNC1, CNC2, the drilling and the sandblasting machine, as well as the option
to use blocker for batch processing for the washing machine are considered
depending on the defined batch sizes for the single production process steps.
With the assignment of the machine logic type to a machine, the number of
energy parameters is defined, following the number of possible machine states. At
this point, it is either possible, to use table functions in AnyLogic to work with
realistic energy load profiles (Figure 5.28), or the energy consumption parameters
can be defined as mean values being used for the whole duration of the single
machine state.
The total energy consumption of the production line is calculated summing
up the energy flows of the single machines over the time period simulated. The
current energy flow can be specified with an exact value at any time. To ensure
that an energy value is documented for each time unit depending on the selected