TY - JOUR
T1 - On active redundancy allocation for coherent systems—from the viewpoint of minimal cut decomposition
AU - Fang, Rui
AU - Li, Xiaohu
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/3
Y1 - 2018/3
N2 - This paper deals with coherent systems with one active redundancy. For systems with the subclass of minimal cuts associated with one component covering that of another, assigning the redundancy to the former component is proved to bring forth a more reliable redundant system. As for symmetric systems with lower tail permutation decreasing component lifetimes, allocating the redundancy to the less reliable component results in a longer system lifetime. Several numerical examples are also presented to illustrate the new findings.
AB - This paper deals with coherent systems with one active redundancy. For systems with the subclass of minimal cuts associated with one component covering that of another, assigning the redundancy to the former component is proved to bring forth a more reliable redundant system. As for symmetric systems with lower tail permutation decreasing component lifetimes, allocating the redundancy to the less reliable component results in a longer system lifetime. Several numerical examples are also presented to illustrate the new findings.
KW - Arrangement increasing
KW - Copula
KW - LTPD
KW - Minimal cut
KW - Stochastic order
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U2 - 10.1016/j.orl.2018.01.008
DO - 10.1016/j.orl.2018.01.008
M3 - Article
AN - SCOPUS:85041715129
SN - 0167-6377
VL - 46
SP - 233
EP - 239
JO - Operations Research Letters
JF - Operations Research Letters
IS - 2
ER -