Utilização de redes de Petri na análise formal do trabalho multifuncional em linhas de produção
2007
The multifunctional workforce is a recurrent element in companies under dynamic production environments.
The need for adequacy to the production flexibility demands the presence of multi-skilled workers, capable of
performing a greater variety of operations. Specific research deeply focused on the effects of multifunctional
work in the context of production systems by means of quantitative methods does not exist or lacks precision.
On the other hand, the modeling of multifunctional behavior by means of simulation and modeling techniques
is quite complex, thus motivating new approaches. The efficacy of Petri nets in production lines modeling is
largely proved by recent bibliography, due to their simultaneous capacity of graphic visualization as well as
formal analysis. The aim of this paper is the application of Petri nets formalism to the analysis of production
lines with multifunctional work. Firstly, a workstation model was built and xx analyzed. Consecutively, the
production flow was studied among different workstations. By means of Petri nets formalism, a mathematical
equation was derived for the intermediary minimum buffer size (κ) calculation. The resultant κ has a crucial
effect on the better use of available resources, such as the multifunctional workforce, in order to achieve higher
levels of productivity.
Keywords: Multifunctional work; Modeling; Petri nets.
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