A novel approach to realistic modeling and simulation of state-varying failure rates

Sanja Lazarova-Molnar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There has been a lot of research on time-varying failure rates, which deems constant failure rates as inadequate to model failures accurately. However, besides time, failure rates can also be affected by the state of the system (or its history, in terms of sequences of states and events that it has been through). In our paper we define several classes of state-varying failure rates and extend the formalism of Petri nets to model them. We further use the flexibility of the proxel-based method to accurately analyze behavior of systems that incorporate these kinds of failures. To illustrate our approach and study the effect of such dependencies, we compare simulation results for two models: one that exhibits state-varying failure rates, and another that only contains predefined failure rate functions.

Original languageEnglish
Title of host publication23rd European Modeling and Simulation Symposium, EMSS 2011
Pages526-534
Number of pages9
Publication statusPublished - 2011
Event23rd European Modeling and Simulation Symposium, EMSS 2011 - Rome, Italy
Duration: Sep 12 2011Sep 14 2011

Publication series

Name23rd European Modeling and Simulation Symposium, EMSS 2011

Other

Other23rd European Modeling and Simulation Symposium, EMSS 2011
Country/TerritoryItaly
CityRome
Period9/12/119/14/11

Keywords

  • Petri nets
  • Proxels
  • Reliability
  • State-varying failure rates

ASJC Scopus subject areas

  • Modelling and Simulation

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