Article ID: | iaor201524041 |
Volume: | 61 |
Issue: | 7 |
Start Page Number: | 549 |
End Page Number: | 556 |
Publication Date: | Oct 2014 |
Journal: | Naval Research Logistics (NRL) |
Authors: | Tavangar Mahdi |
Keywords: | simulation, stochastic processes |
Most of the research, on the study of the reliability properties of technical systems, assume that the components of the system operate independently. However, in real life situation, it is more reasonable to assume that there is dependency among the components of the system. In this article, we give sufficient conditions based on the signature and the joint distribution of component lifetimes to obtain stochastic ordering results for coherent and mixed systems with exchangeable components. Some stochastic orders on dynamic (or conditional) signature of coherent systems are also provided.