Operation-Oriented Reliability and Availability Evaluation for Onboard High-Speed Train Control System with Dynamic Bayesian Network

Cai, Baoping; Liu, Yonghong; Liu, Zengkai; Chang, Yuanjiang; Jiang, Lei

doi:10.1007/978-981-13-6516-4_6

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2020

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“…Amin et al [12] constructed a dynamic BN based upon a five-step safety assessment methodology and used this dynamic BN to assess the availability of both the fire alarm and steam generation systems. Jiang et al [13] presented a systemic approach to evaluate the reliability and availability for the onboard system based on dynamic BN, with taking into account dynamic failure behaviors, imperfect coverage factors, and temporal effects in the operational phase.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Availability Analysis for Marine Energy Transfer Subsystem Using Bayesian Network

Yang

Sørensen

2020

Energies

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This research work proposes a novel approach to estimate probabilities of availability states of the energy transfer network in marine energy conversion subsystems, using Bayesian Networks (BNs). The logical interrelationships between units at different level in this network can be understood through qualitative system analysis, which then can be modeled by the fault tree (FT). The FT can be mapped to a corresponding BN, and the condition probabilities of nodes can be determined based on the logic structure. A case study was performed to demonstrate how the mapping is implemented, and the probabilities of availability states were estimated. The results give the probability of each availability state as a function of time, which serves as a basis for choosing the optimal design solution.

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Section: Introductionmentioning

confidence: 99%