The evaluation of operational reliability based on information of spare part demand
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It's difficult to collect reliability data for equipments which are in long-term storage.But the information of spare part demand is easy to collect.It gave a method of assessment for operational reliability based on the spare part demand information in this paper.Firstly,it investigated the data structure of spare part wastage of equipments which were in long-term storage in order to evaluate operational reliability. The data structure accord with the zero-inflated data.We took equipments which don't need spare part under advisement based on the data structure,and then the model of equipment spare part was established. It also gave bayes estimation of parameters of the model.Finally,the simulation example shows that the method proposed is feasibility.