Warship equipment availability evaluation method

Abstract

The invention discloses a warship equipment availability evaluation method. The method includes: acquiring part demand rates of equipment maintenance station sites at any time; calculating numbers ofparts of the station sites in repairing according to the part demand rates of the station sites; calculating numbers of the parts of the station sites in transit according to the part demand rates ofthe station sites; calculating maintenance guarantee delay numbers and transport guarantee delay numbers of the parts of the station sites according to the part demand rates of the station sites; acquiring part supply mean-values and variances of the station sites; calculating and obtaining expectation shortage numbers of the parts according to part inventory numbers, part supply values and part shortage numbers of the station sites; combining the part supply mean-values and variances to calculate availability of the parts according to the expectation shortage numbers of the parts and the variances; and calculating availability of equipment. The method of the technical solution of the invention is accurate in a model algorithm, is fast in a calculation speed, is suitable for use in establishing an any-hierarchy equipment time-varying availability model, is small in errors when availability is low and repair probability is higher, and is wide in an applicability range.

Description

technical field [0001] The invention belongs to the field of evaluating the availability of naval equipment, and in particular relates to a method for evaluating the availability of naval equipment. Background technique [0002] Spare parts are an important material basis for equipment maintenance. When the demand for spare parts fluctuates due to task changes and the support system cannot reach a steady state, or the spare parts support system has limited repair capabilities and the consumption rate of spare parts is greater than the regeneration and replenishment rate of spare parts, the instantaneous availability of equipment is fluctuating. For example, during the implementation of autonomous support tasks, the formation of ships with limited spare parts repair capabilities, and the formation of fighter jets that perform multi-level support for wartime tasks. Equipment is generally composed of multi-level components. The equipment site usually only has the ability to re...

AI Technical Summary

Problems solved by technology

The above inventory model with a repair probability of less than 1 has a small error when the availability is high, and a large error when the availability is low and the repair probability is high, and the scope of applicability is limited

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