Modelling and performance evaluation of flexible manufacturing systems using deterministic and stochastic timed Petri nets
T.K. Behera, B.S. Mishra, Lalit Mohan Patnaik, Claude Girault · 1995
This paper describes a Petri net-based methodology that has been developed for the performance analysis of Real-Time systems (RTS). A Flexible Manufacturing System (FMS), which is a case of a real-time system, has been used as a vehicle for our discussion. We use here Deterministic and Stochastic methods for modelling and analysing the performance of this Real-Time systems. Since the operational times of an FMS, such as machine times and part transfer times, are deterministic, we use Deterministic Timed Petri Nets (DTPNs) for obtaining the performance of the system modelled; whereas for analysing tool breakage and machine failure we use Generalised Stochastic Petri Nets, because such failures are random in nature. We use a software package developed inhouse for the deterministic timed analysis, whereas we use the GreatSPN1.3 for stochastic analysis.