摘要
备件库存和站点维修能力是影响备件维修周转的重要因素,制约着装备的使用效果。针对备件需求随任务阶段动态变化时装备保障方案的评估和优化问题,考虑站点维修能力对备件维修过程的影响,结合METRIC建模方法和动态排队理论,建立了有限维修能力下多级保障系统装备时变可用度评估模型。在评估模型基础之上,以保障费用为优化目标、装备可用度为约束条件,建立任务期内多级保障系统保障方案优化模型。以任务期内的最低可用度所对应的备件短缺数为观测值,分析各项资源的边际效益值,采用边际优化算法对各项资源进行优化计算。算例分析表明,评估模型能够计算多级保障系统任务期内各阶段装备可用度;保障方案优化模型和方法能够得到各项保障资源的优化配置方案。提出的模型和优化方法能够为装备保障人员制订合理的保障方案提供决策支持。
The spare parts inventory and department repair capacity are important factors to influence the process of maintenance turnover for spare part, and it restricts the use effect of equipment. Aiming at the support project evaluation and optimization when the demand of spare parts is dynamic in the mission phases and considering the influence of repair capacity to spare parts repair process, an evaluation model of time-varying availability was set up for the multi-echelon support system with finite repair capacity on the basis of the METRIC methodology and dynamic queuing theory. Based on the evaluation model, an optimization model for the support project of multi-echelon support system during the mission phases was proposed by taking the support cost as the optimization objective and the equipment availability as the constraints. The minimum availability of the whole mission was taken as observation value and the margin optimization was used to get the optimized project for each resource. The analysis results of an example show the availability value for different mission phases can be given by the evaluation model, and the optimized project of resources for the multi-echelon support system can be obtained by the optimization model and method. The proposed models and optimization method can provide decision support to equipment support staff for rational support project.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2017年第1期128-136,共9页
Journal of National University of Defense Technology
基金
国家部委基金资助项目(51304010206
51327020105)
关键词
多级保障系统
有限维修能力
任务阶段
装备时变可用度
评估模型
保障方案
边际优化
multi-echelon support system
finite repair c a p a c i t y
m i s s i o n p h a s e s
e q u i p m e n t t i m e - v a r y i n g availability
evaluation m o d e l
support project
margin optimization
