Spare requirement defining method based on probability interval analysis under integrated support mode

Spare has important effect on equipment readiness, dependability and support cost. It is necessary to scientifically define and optimize its requirements. In the past, spare was supplied for different services and equipments separately, which is incompatible with incorporate support. Aiming to incorporate support mode, this paper builds spare requirements calculating model for general equipment applying probability interval analysis. At last this paper validates effectiveness of the model through elaborate example analysis.