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ID:32054471
大小:2.86 MB
页数:70页
时间:2019-01-31
《混合型生产过程建模与调度方法分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、^■IModelingandOptimizationAlgorithmforHybridProductionSchedulingABSTRACTShopschedulingisaneffectivewayfortheenterprisestogetmoreprofitandmanagemoreefficiently,whichhasalwaysbeenafocusanddifficultprobleminthefieldofcomputerintegratedmanufacturingsystemsandmanagementscience.Hyb
2、ridproductionprocesshasmanycharacteristicsbetweencontinuousproductionanddiscreteproduction.Itisamulti-objectiveoptimizationproblem,too.Withthedevelopmentofthemarketeconomy,itisbecomingthemainstreamoforganizationalmodeofproductionincreasingly.Theparticleswarmoptimizationalgori
3、thm1Sverysimple,easyandhasafewparameterstoadjust,SOitisveryidealforsettlingmulti。objectiveoptimizationproblems.Thisdissertationexploresmodelingandsolvingmethodsofhybridproductionschedulingproblem.Inthedissertation,thecharacteristicsofhybridproductionprocessweredescribed.Onthe
4、basicofanalysingtheconstraintsoftheproductionschedulingproblemandconsideringmultipleobjectivefunctionsofthescheduling,themodelofhybridproduetionschedulingproblemwasestablished.Multi—objectiveoptimizationproblemwasin仃.oduced.Afterdescribingtheconcepts,avarietyofalgorithmswassu
5、mmarized.Ontllebausicofnleadvantagesanddisadvantagesofthesealgorithms,thetrendswereprospected.ImprovedPSO(ParticleSwarmOptimization)formulti.objectiveoptimizationproblemwasdeveloped.TheexternalpopulationwasretainedSOthatthewh01eparticleswarmavoidedlocaloptimum;andtheglobalopt
6、imumwasupdatedbasedontheprobabilityofindividuals’crowdingdistanceandthelocaloptimumwasupdatedbasedondominancerelationshipbetweeneachparticlelocationanditsoldoptimum,whilethepopulationdiversitywaspreservedwithadaptivedynamicinertiaweightandtheadaptiveadjustmentofinternalpopula
7、tionsize.Thefasterconvergence,extensivedistributionandlesscomputationtimewerevalidatedwiththetestfunctions.Finally,itwasusedformulti-objectivecopperrollproductionschedulingonthebasicofdetailedparticleencoding,decodingandscheduling.Andtheresultofapplicationshowedthatthealgorit
8、hmwaseffective.Keywords:hybridproductionscheduling;Multi-objectiveop
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