Estimating the Dependability's in Constructions
Pages 577-581 (2003 Proceedings of the 20th ISARC, Eindhoven, Holland, ISBN 978-90-6814-574-8, ISSN 2413-5844)
In this paper an approach for the throughput evaluation of the construction manufacturing systems is presented. The throughput is evaluated with a heap-based algorithm for the Petri nets model of the construction systems. The Petri nets model is a stochastic one, and the firing rate of the transitions are calculated with Markov chains models of the component subsystems of the manufacturing system. The advantages of this approach are:
- constructing a system level Markov chain (a complex task) is not required;
- it permits to evaluate transient and steady-state performance of alternative designs based on different availability of the systems components;
- the heap based throughput algorithm is simpler than the traditional timed event graph version;
- it introduces the availability of the human factor in the theoretical model of a construction system.
Keywords: Stochastic Petri nets, Markov chains, system availability, heaps of pieces