Title :
On Multistate Coherent Systems
Author :
Ohi, Fumio ; Nishida, Toshio
Author_Institution :
Dept. of Applied Physics; Faculty of Engineering; Osaka University; Suita 565 JAPAN.
Abstract :
Recently, several authors have treated multistate systems and given some results. This paper summarizes the several concepts of s-coherency and shows the relationships between them. An interesting theorem for the existence of series and parallel coherent systems is presented. We have proved IFRA and NBU closure theorems under more general situation than has El-Neweihi, et alii and Ross. We discuss our IFR closure theorem.
Keywords :
Hazards; Reliability theory; State-space methods; Stochastic processes; Hazard transform; IFR closure theorem; IFRA closure theorem; Multistate s-coherent system; NBU closure theorem; Parallel system; Series system;
Journal_Title :
Reliability, IEEE Transactions on
DOI :
10.1109/TR.1984.5221824
