New approach to calculate the unavailability of identical spares in cold spare configuration

作者：Nyan Win Aung; Wei Hai Jun^*; Liu Ting

来源：Journal of Dong Hua University (english Edition), 2014, 31(6): 863-869.

• AND gate
• Cold spare
• Dynamic fault trees
• Markov analysis
• Markov state diagrams
• New approaches
• Power generation systems
• Spare gate

Cold spare is the most common configuration amongst the three types of configuration for systems used on board and for power generation systems. A new approach to calculate the unavailability of systems composed of identical spares in cold spare configuration was proposed in this study. Instead of using the spare gate of dynamic fault tree(DFT) and the Markov analysis, AND gate of static fault tree used for calculating the unavailability of cold spare systems was proposed in this paper. By using this approach, unavailability of identical cold spare systems composed of non-repairable spare components can be calculated exactly and systems composed of both repairable and nonreparable identical spare components can be estimated without building large Markov state diagram.

• 出版日期2014
• 单位上海海事大学