TY - GEN
T1 - Petri nets extension to model state-varying failure rates
AU - Lazarova-Molnar, Sanja
PY - 2013
Y1 - 2013
N2 - One of the most common assumptions in reliability modeling is the constant failure rate. This has been increasingly changing lately, yielding significant research towards abandoning simulation results based on this assumption; thus, deeming constant failure rates as inadequate to model failures accurately. The improvement is the time-varying failure rate. However, besides time, in reality failure rates can 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 this paper we define and distinguish several classes of state-varying failure rates and extend the formalism of Petri nets to model them. To illustrate our approach we provide an example model that features state-varying failure rates.
AB - One of the most common assumptions in reliability modeling is the constant failure rate. This has been increasingly changing lately, yielding significant research towards abandoning simulation results based on this assumption; thus, deeming constant failure rates as inadequate to model failures accurately. The improvement is the time-varying failure rate. However, besides time, in reality failure rates can 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 this paper we define and distinguish several classes of state-varying failure rates and extend the formalism of Petri nets to model them. To illustrate our approach we provide an example model that features state-varying failure rates.
KW - Modeling
KW - Petri nets
KW - State-varying failures
UR - http://www.scopus.com/inward/record.url?scp=84880652758&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84880652758&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84880652758
SN - 9781627482769
T3 - Simulation Series
SP - 245
EP - 252
BT - Summer Computer Simulation Conference and Work in Progress, SCSC 2013 and WIP 2013 - 2013 Summer Simulation Multiconference, SummerSim 2013
T2 - Summer Computer Simulation Conference, SCSC 2013 and Work in Progress, WIP 2013, Part of the 2013 Summer Simulation Multiconference, SummerSim 2013
Y2 - 7 July 2013 through 10 July 2013
ER -