TY - JOUR
T1 - An extended stochastic failure model for a system subject to random shocks
AU - Cha, Ji Hwan
AU - Lee, Eui Yong
N1 - Funding Information:
The work of the first author was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093827). The work of the second author was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MOST) (No. R01-2007-000-20045-0 ).
PY - 2010/9
Y1 - 2010/9
N2 - In this article, a stochastic failure model for a system subject to a random shock process is studied. It is assumed that a fatal shock results in an immediate system failure, whereas a non-fatal shock may increase the susceptibility of the system to failure. The lifetime distribution of the system and its failure rate function are derived, and the effect of environmental factors on the failure process of the system is also investigated. Lifetimes of systems operated under different environmental conditions are stochastically compared.
AB - In this article, a stochastic failure model for a system subject to a random shock process is studied. It is assumed that a fatal shock results in an immediate system failure, whereas a non-fatal shock may increase the susceptibility of the system to failure. The lifetime distribution of the system and its failure rate function are derived, and the effect of environmental factors on the failure process of the system is also investigated. Lifetimes of systems operated under different environmental conditions are stochastically compared.
KW - Baseline failure rate function
KW - Compound failure rate function
KW - Extreme shock model
KW - Failure rate increment
KW - Poisson shock process
KW - Stochastic ordering
UR - http://www.scopus.com/inward/record.url?scp=77957897079&partnerID=8YFLogxK
U2 - 10.1016/j.orl.2010.06.004
DO - 10.1016/j.orl.2010.06.004
M3 - Article
AN - SCOPUS:77957897079
SN - 0167-6377
VL - 38
SP - 468
EP - 473
JO - Operations Research Letters
JF - Operations Research Letters
IS - 5
ER -