RT journal article
T1 A study on multi-level redundancy allocation in coherent systems formed by modules
A1 Torrado, Nuria
A1 Arriaza Gómez, Antonio Jesús
A1 Navarro, Jorge
A2 Estadística e Investigación Operativa
K1 Reliability Hierarchical system structure
K1 System/modular/component redundancy
K1 Stochastic comparisons
K1 Optimal component allocation
K1 Copulas
AB The present work studies the effect of redundancies on the reliability of coherent systems formed by modules. Different redundancies at components’ level versus redundancies at modules’ level are investigated, including active and standby redundancies. For that, a new model is presented. This model takes into account the dependence among the components, as well as, the dependence among the modules of the system. In both cases, the dependence structure is modeled by copula functions. Several results are provided to compare systems consisting of heterogeneous components. The comparisons are distribution-free with respect to the components. In particular, we consider the cases when the components in the modules are independent and connected (or not) in series, and when the components are dependent within the modules. In both cases, it is assumed that the modules can be dependent. Furthermore, the case in which the components in each module are identically distributed (dependent or independent) is also considered. We illustrate the theoretical results with several examples.
PB Elsevier
SN 0951-8320
YR 2021
FD 2021
LK http://hdl.handle.net/10498/30208
UL http://hdl.handle.net/10498/30208
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026