TY - JOUR
T1 - Weak aging properties for coherent systems with statistically dependent component lifetimes
AU - Li, Chen
AU - Li, Xiaohu
N1 - Publisher Copyright:
© 2020 Wiley Periodicals LLC
PY - 2020/10/1
Y1 - 2020/10/1
N2 - As a relevant topic in reliability theory, the preservation of aging properties under the formation of various coherent structures contributes to improving system performance through better structure design and more effective system maintenance. The classical research in this line usually focuses upon coherent systems with independent component lifetimes. Recently, some authors discussed the preservation of IFR, NBU, and DMRL in the setting of dependent component lifetimes. This paper further investigates sufficient conditions for coherent systems with dependent component lifetimes to preserve aging properties including NBUC, NBU (2), DMRL, and their dual versions. Some examples are presented to illustrate coherent structures and typical copula functions fulfilling the present sufficient conditions as well.
AB - As a relevant topic in reliability theory, the preservation of aging properties under the formation of various coherent structures contributes to improving system performance through better structure design and more effective system maintenance. The classical research in this line usually focuses upon coherent systems with independent component lifetimes. Recently, some authors discussed the preservation of IFR, NBU, and DMRL in the setting of dependent component lifetimes. This paper further investigates sufficient conditions for coherent systems with dependent component lifetimes to preserve aging properties including NBUC, NBU (2), DMRL, and their dual versions. Some examples are presented to illustrate coherent structures and typical copula functions fulfilling the present sufficient conditions as well.
KW - DMRL
KW - NBUC
KW - copula function
KW - domination function
KW - increasing convex order
KW - structure function
KW - submultiplicative
UR - http://www.scopus.com/inward/record.url?scp=85088558740&partnerID=8YFLogxK
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U2 - 10.1002/nav.21928
DO - 10.1002/nav.21928
M3 - Article
AN - SCOPUS:85088558740
SN - 0894-069X
VL - 67
SP - 559
EP - 572
JO - Naval Research Logistics
JF - Naval Research Logistics
IS - 7
ER -