Maintenance and spare part supply combined optimization method based on deterministic inventory degradation model

Abstract

The invention discloses a maintenance and spare part supply combined optimization method based on a deterministic inventory degradation model. The maintenance and spare part supply combined optimization method based on the deterministic inventory degradation model comprises the steps of selecting and fitting out the deterministic inventory degradation model according to inventory degradation data, introducing the deterministic inventory degradation model, computing the expected maintenance expense, the expected spare part purchasing expense, the expected spare part storage expense and the expected spare part shortage loss expense, building a maintenance and spare part supply combined optimization model according to the deterministic inventory degradation model, and carrying out optimization solution. The method takes the spare part inventory degradation phenomenon which is ignored but very important in the maintenance optimization process into account, and combines the historical inventory storage degradation data to obtain the deterministic inventory degradation model which describes the spare part inventory degradation phenomenon. Meanwhile, the deterministic inventory degradation model is introduced into the computation of the maintenance and spare part supply related expenses, the combined optimization model is built more reasonably, the combined optimization model is more suitable for the practical situation than an original model, and a more accurate result can be obtained.

Description

technical field [0001] The invention relates to the field of maintenance and spare parts optimization of power electronic equipment, in particular to a joint optimization method for maintenance and spare parts supply based on a deterministic inventory degradation model under the condition that spare parts inventory degradation data exists. Background technique [0002] Since there is no completely ideal storage environment, spare parts will inevitably be degraded and scrapped during storage. This phenomenon will affect the normal production work, maintenance, spare parts management and other activities of the equipment. For example, the electronic equipment and components stored on ocean-going ships, as well as some mechanical components, are used to replace the failed operating parts in time to ensure the normal operation of the ship. However, due to high humidity, high salinity, surges, etc. In the harsh environment, the scrapping of spare parts is very serious, which aff...

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Problems solved by technology

However, in the case of spare parts degradation and failure, it will affect the spare parts inventory, and then affect the accuracy of the entire joint optimization result

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