收稿日期:2022-05-12第40卷第4期计算机仿真2023年4月文章编号:1006-9348(2023)04-0052-05Petri网作用下航空装备虚拟维修训练仿真张原,李璇(海军航空大学航空基础学院,山东烟台264001)摘要:针对航空装备日常维修训练周期长、费用高等难题,建立基于Petri网的航空装备虚拟维修训练仿真模型。分析维修训练的组成要素,利用分层思想将训练任务划分为维修层、作业层、维修动素和基本姿势层等,确定不同阶段的训练任务;选取串行、并行和选择作业三种模式,分析不同模式的训练过程;通过基网、权函数、维修动作和状态集合等元素,构建Petri网子模型;采用有向图表示装备部件维修间的约束关系,明确维修优先级,并将有向图变换为仿真模型可识别的邻接矩阵;建立具有动态重组功能的Petri网训练仿真模型,设置触发条件,获取维修训练仿真的完整过程。实验结果表明,上述模型即使在维修训练任务非常多的情况下也不会出现死锁现象,且仿真效率高,能有效减少训练时间和成本。关键词:派催网;航空装备;虚拟维修训练;仿真模型;有向图中图分类号:TP391文献标识码:BVirtualMaintenanceTrainingSimulationofAviationEquipmentunderPetrinetworkZHANGYuan,LIXuan(CollegeofBasicSciencesforAviation,NavalAviationUniversity,YantaiShandong264001,China)ABSTRACT:Aimingattheproblemsoflongperiodandhighcostofdailymaintenanceofaviationequipment,thispaperdesignedamodelofsimulatingvirtualmaintenancetrainingofaviationequipmentbasedonPetrinet.Firstly,thecomponentsofmaintenancetrainingwereanalyzed.Andthen,thetrainingtasksweredividedintomaintenancelayer,operationlayer,maintenancetherbligandbasicposturelayerthroughthehierarchicalidea,sothatthetrainingtasksindifferentstagescanbedetermined.Threemodes,theserial,parallelandselectiveoperationswereselected.Afterthat,thetrainingprocessofdifferentmodeswereanalyzed.ThesubmodelofPetrinetwasconstructedthroughthebasenets,weightfunctions,maintenancetherbligsandstatesets.Moreover,thedirectedgraphwasusedtore-presenttheconstraintrelationshipbetweenequipmentcomponents,andthustodefinethemaintenancepriority.Fur-thermore,thedirectedgraphwastransformedintoanadjacencymatrixthatcanberecognizedbythesimulationmod-el.Meanwhile,aPetrinettrainingsimulationmodelwithdynamicreconfigur...
