Dependability modeling and analysis of hybrid redundancy systems
International Journal of Quality & Reliability Management
ISSN: 0265-671X
Article publication date: 9 January 2009
Abstract
Purpose
The aim of this study is to demonstrate that hybrid redundancy systems are superior to the conventional N‐modular redundancy (NMR) systems.
Design/methodology/approach
The hybrid redundancy system is a synthesis of the NMR system and the standby redundancy. Each module of the NMR has access to k cold spares (k<N) and a repair facility. A semi‐Markov model for the hybrid redundancy system is developed and transient analysis is performed.
Findings
Some dependability measures such as availability, reliability, mean time to failure and steady‐state availability are obtained.
Originality/value
This paper presents the transient analysis of the hybrid redundancy systems. The results obtained will be useful to reliability engineers and reliability practitioners.
Keywords
Citation
Chellappan, C. and Vijayalakshmi, G. (2009), "Dependability modeling and analysis of hybrid redundancy systems", International Journal of Quality & Reliability Management, Vol. 26 No. 1, pp. 76-96. https://doi.org/10.1108/02656710910924189
Publisher
:Emerald Group Publishing Limited
Copyright © 2009, Emerald Group Publishing Limited