应急物资储备点选址多目标优化模型及算法研究.pdfVIP

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应急物资储备点选址多目标优化模型及算法研究

冯舰锐;盖文妹

【摘要】为应急物资储备点的选址问题提供一个合理的解决方法,提高应急救援工

作的响应能力,基于运筹学中求解多目标优化问题的理论和方法,根据紧急情况下物

资运输调度的时效性与经济性特征,构造相应目标函数,引入权重综合考虑时效性和

经济性,并利用可变权重因子构造辅助函数,进而建立应急选址问题的优化模型;在此

基础上,借用智能算法中系统动态演化方法,提出求解权重的算法,并拓展到多目标决

策,将多目标问题逐步转化为单目标问题进而解决;实例计算结果验证了所提算法的

正确性及优势,以及求解效率、辅助函数性质的正确性,可以为决策者提供多种在灾

变条件下的选择方案;此外,提出的算法也可用于应急管理领域中其他相关优化与选

址问题.%Toprovideareasonablesolutionfortheproblemofsiteselection

forthereservesitesofemergencymaterials,andimprovetheresponse

abilityofemergencyrescuework,basedonthethreoryandmethodto

solvethemulti-objectiveoptimiza-tionproblemintheoperational

research,thecorrespondingobjectivefunctionswereconstructedaccoring

tothecharacteristicsoftimelinessandeconomyinthetransportationand

schedulingofemergencymaterialsundertheemergencysituation.The

timelinessandeconomywerecomprehensivelyconsideredbyintroducing

intotheweights,andtheauxiliaryfunctionswereconstructedbyusingthe

variableweightfactor,thustheoptimizationmodelofemergencysite

selectionwasestablished.Onthisbasis,thealgorithmforsolvingthe

weightswasputforwardbyusingthesystemdynamicevolutionmethod

oftheintelli-gentalgorithm,anditwasextendedtothemulti-objective

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decision-makingtoconvertthemulti-objectiveproblemintothesin-gle

objectiveproblemstepbystepforsolving.Thecorrectnessandadvantages

oftheproposednewalgorithmwereverifiedbythecalculationresultsof

case,aswellasthesolvingefficiencyandthecorrectnessoftheproperties

ofauxiliaryfunctions.Itcanprovidevariousselectionschemesunderthe

catastrophicconditionstot