系统工程理论与实践
繫統工程理論與實踐
계통공정이론여실천
Systems Engineering—Theory & Practice
2015年
6期
1457~1464
,共null页
模糊需求 需求分配 应急调度 网络配流
模糊需求 需求分配 應急調度 網絡配流
모호수구 수구분배 응급조도 망락배류
fuzzy demand;demand allocation;emergency dispatch;network flow assignment
应急救援下,需求的不确定性和交通网络及流量的不稳定性增加了应急决策的难度,救援效果也无法有效控制.考虑模糊需求下应急物资的需求分配与网络配流问题,文章建立了以最小总配送时间为目标的网络流模型.应用基于双边约束的重力模型算法和凸组合算法,通过需求分配和网络流分配结果的交互迭代,得出最小总配送时间下的最优需求分配、路径和网络流.最后,通过算例验证了算法的有效性并对比了不同需求分配机制对救援决策效果的影响,结果表明基于距离阻抗的需求分配机制比基于时间阻抗的分配机制得到的最优解更稳定.
應急救援下,需求的不確定性和交通網絡及流量的不穩定性增加瞭應急決策的難度,救援效果也無法有效控製.攷慮模糊需求下應急物資的需求分配與網絡配流問題,文章建立瞭以最小總配送時間為目標的網絡流模型.應用基于雙邊約束的重力模型算法和凸組閤算法,通過需求分配和網絡流分配結果的交互迭代,得齣最小總配送時間下的最優需求分配、路徑和網絡流.最後,通過算例驗證瞭算法的有效性併對比瞭不同需求分配機製對救援決策效果的影響,結果錶明基于距離阻抗的需求分配機製比基于時間阻抗的分配機製得到的最優解更穩定.
응급구원하,수구적불학정성화교통망락급류량적불은정성증가료응급결책적난도,구원효과야무법유효공제.고필모호수구하응급물자적수구분배여망락배류문제,문장건립료이최소총배송시간위목표적망락류모형.응용기우쌍변약속적중력모형산법화철조합산법,통과수구분배화망락류분배결과적교호질대,득출최소총배송시간하적최우수구분배、로경화망락류.최후,통과산례험증료산법적유효성병대비료불동수구분배궤제대구원결책효과적영향,결과표명기우거리조항적수구분배궤제비기우시간조항적분배궤제득도적최우해경은정.
Under emergency rescue circumstance,the uncertainty of demand and instability of traffic network flow increase the difficulty of emergency decision,and the rescue effect is hard to control.Considering the problem of demand allocation and network flow assignment with fuzzy demand,a network flow model with the objective function of minimum total distribution time was built.By applying the double constrained gravity model and convex combination algorithm,the iterations of demand allocation and network flow assignment result contributed to the best demand allocation,optimal vehicle route and network flow.The effectiveness of the algorithm was verified by experiment tests and the effect of different demand allocation mechanism was compared.Result showed that the distance impedance returns a more stable solution than time impedance.
