军用物资装卸搬运作业系统建模与仿真研究

196©Vol.19No.620073JournalofSystemSimulationMar.,2007王志敏,李振克,300161在军用物资作业组织、装备编配、保障方案拟制等工作中，通常需要对给定系统完成给定任务的能力和各环节装备配置的合理性等进行评估。通过对军用物资装卸搬运系统的作业分析，在EXTEND仿真平台上建立了物资装卸搬运系统作业仿真模型；利用随机试验方法，获得系统作业的完成时间、各个作业环节服务台的排队长度、等待时间及各装载设备的利用率等仿真结果统计数据，可为评估系统保障能力、科学制定设备配置方案提供依据。装卸搬运;系统仿真;EXTEND评估TP391.9A1004-731X(2007)06ModelingandSimulationResearchonMilitaryMaterialHandlingSystemWANGZhi-min,LIZhen-ke,CHENQiang,GAOWen-wei,LIUWeiAcademyofMilitaryTransportation,Tianjin300161,ChinaAbstract:Systemefficiencyevaluationandequipmentconfigurationrationalityareusuallyrequiredinmilitaryactivities,suchasorganizingoperations,configuringequipmentsandmakingsupplyplans.Byanalysingtheprocessofmilitarymaterialhandlingsystem,asimulationmodelofthemilitarymaterialhandingprocesswasbuiltinExtendsimulationsoftware.Bymeansofstatisticalexperimentssomekeyperformanceresultswereobtainedincludingthetimeinfinishingthesystemprocess,queuelength,waitingtimeandtheutilizationofloading/unloadingequipmentsoftheserviceplatformintheprocess.Theinformationprovidessolidevidenceforevaluatingthesystemefficiencytohelpconstructequipmentconfigurationplan.Keywords:MilitaryMaterialHandlingSystem;systemsimulation;Extend;Evaluate1“”ImagineThatEXTEND2005-09-192006-07-03030107(1956-),,,,;(1981-),,,,11.1NM11.21196Vol.19No.620073Mar.,200721.32EXTENDEXTEND2.11(1)FIFO(2)(3)2.2EXTEND33(1)(2)(3)tt0trt01[1,2]trt∆00[∆,∆]ttttt∈−+(1)00[∆,∆]tttt−+11[1](4)2196Vol.19No.620073Mar.,2007Tt(min)S(km)V0[1]km/hVr(km/h)060rSTtVV×=+(2)VrV∆[3](2)00,∆∆SSTtVVVV⎡⎤∈⎢+−⎣⎦⎥(min)R1SMMBFRe−=−(3)S(2)MMBFkmMTTRMinT⎩⎨⎧≥+=)(0)(RxRxMTTRTTt(4)x(0,1)(5)1234(6)Exit”2.32.42.4.1ETETEE2.4.2Nmin1-αεµxσxttа2min(/)(/)αxxNεσµ=•t(5)2030µxσxtаNmin2.5EXTEND()2.6()Extend33.1[4]120min16060140m8km0.8km31T65T31T310T31T196Vol.19No.620073Mar.,2007(1)(4)11()6063312.072.2(min)5(12,16)(min)R=0.006,MTTR=112min311.271.47(min)5104.88(min)R=0.0MTTR=0311.01.2103.2443.33.3.1StopStop3.3.25095%5%tа2.021,(5)3.3.2.17002µx99.880.5560.2920.2345.2750.6780.2360.03113.270.844σx30.510.0970.0570.0470.3560.1480.1290.0190.7960.158Nmin1504961657764786016563.4(1)EXTEND(2)70092min8%3.5700ExtendStatFit,95%76.5269K1=1.05K2=11.1Beta91.7min3()3(0.5820.073)(5.3140.352)(0.7230.112)(0.2630.133)()(0.0360.019)()(0.3090.043)(12.633.5)()(0.9270.048)()(0.2490.035)(0.0210.057)(0.00140.004)3(1)70092min(2)Beta3.5(3)31%323170095%(85.8281)K1=0.614K2=8.38Beta,97.1min4()40.5570.0665.4260.3320.6960.1040.4380.0590.7530.2940.0960.036196Vol.19No.620073Mar.,200713.823.1()0.8760.04()(0.7050.095)2.9520.8020.1920.05945min31/34(1)(2)(3)(4)(5):[1].[R].,2004.[2].[J].,2004.[3].[C]//_95,:,1995.[4].[D].,,2004.