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This paper develops a Bayesian framework to assess the reliability and performance of multi-state systems (MSSs). An MSS consists of multiple multi-state components of which the degradation follows a Markov process. Due to the lack of sufficient data, and only vague knowledge from experts, the transition intensities of multi-state components between any pair of states and the state probabilities cannot...
According to the aero-engines' flight hours and the speed cycle number, we can obtain the relationship between the load spectrum and the life of its main components; According to the analysis of actual measured load spectrum and the fatigue damage model, this paper adopts the S-N curve and Miner's rule to estimate the fatigue life of engine's first stage turbine disk.
A zero failure always exists in modern electronic products and its reliability based on zero-failure data has become a problem that needs to be solved to improve the reliability of the whole equipment. This paper solved the problem of parameter selection in the E-Bayesian and hierarchical Bayesian estimation methods and then applied these two Bayesian methods to the zero-failure data of an electric...
In this paper, a new reliability analysis method is developed for turbopump device with the zero-failure life testing data. To assess the reliability of turbopump device with zero-failure data, firstly, equivalent failure theory is used to convert the zero-failure data into equivalent failure data, and then E-Bayesian estimation combing data fusion method are introduced to calculate its reliability...
Life cycle cost is the total cost incurred in the life cycle of a product, including design, development, production, operation, maintenance, support and disposal. Life cycle cost analysis can help engineers to identify equipment and process selection not on the initial purchase cost but rather on the total cost. A reasonable life cycle cost model can lead to a reliable design. In this paper, several...
Many existing software reliability models are based on the assumption of statistical independence among successive software failures. In reality, this assumption could be easily violated. In recent years, efforts have been made to relax this unrealistic assumption and a software reliability modeling framework considering failure correlation was developed by Goseva-Popstojanova and Trivedi. However,...
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