基于无标度随机网络模型的虚拟单元协同调度问题分析

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1、·江苏科技大学工程硕士专业学位论文Thefeasibletaskschedulingshortenstotalflowtimeandtardiness,improvestheutilizationofsharedresource.Finally,anexampleisusedtoverifyitsfeasibilityandvalidity.Intheconstructionandschedulingofvirtualunit,wethinkthekeyequipmentisthenodethatconnectedtodifferentprocesses.Inthevir

2、tualcellscheduling,thesedevicesareoftenthesharingofresources,thereasonablearrangementofjobarrival、reducewaitingtimecanimprovetheproductionefficiency.Modelassumptionsarethatthevirtualunitwasconstructed,theseequipmentinvirtualunitsconstitutedascale-freerandomnetworks.Schedulingnodeisunitequ

3、ipment,composedofpartsprocessing,processingorder,schedulinginformationbetweennodes,byconstraintsofprocesspathandprocessingequipmenttypes.Nodesrepresentprocessesandtheprocessofschedulingpathoftheprocessingorderandprocessingtime.Intheprocessofscheduling,therelationshipbetweenpreprocessandpo

4、stprocessistightlysetupthroughthenode.Anodeusuallyconnectsthetwopartsormoreprocess.Whenarandomtaskarrives,scale-freenetworkmodeltimestheworkpieceandtheunitequipmentconsideringtheloadmachineandprocessingtechnology.Keywordsscale-freenetwork;resourcebottleneck;queuingtheory;virtualcelldynami

5、cscheduling;IV···万方数据···目录目录摘要..................................................................IAbstract...............................................................III第1章绪论.............................................................11.1选题背景及研究意义.......................................

6、..........11.2虚拟单元制造系统的发展脉路.........................................21.2.1成组技术（GroupTechnology—GT）...............................21.2.2单元制造系统...................................................21.2.3动态单元制造系统...............................................31.2.4虚拟单元制造系统......................

7、.........................31.3虚拟单元调度国内外研究现状.........................................41.3.1虚拟单元调度的国内外研究现状...................................41.3.2虚拟单元调度的瓶颈问题综述.....................................71.3.3网络模型问题综述...............................................81.3.4相关研究现