Estimating the Dependability's in Constructions

Abstract: 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 system’s 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.