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随机需求下整车越库装运问题研究

The Vehicles’ Cross-docking Consolidation Shipment Problem with Random Demand

【作者】 左琼

【导师】 刘志学;

【作者基本信息】 华中科技大学 , 管理科学与工程, 2011, 硕士

【摘要】 以客户需求为导向的经济方式彻底改变了传统的物流模式。大量创新性的物流策略不断涌现,其中越库配送已被越来越多的从业者和学者关注,并在工业实践中得以有效应用。作为汽车物流的一个重要组成部分,整车物流也逐渐成为人们探讨的焦点。然而,尽管国外整车物流实践中已有越库配送模式的应用,但在整车物流研究中却鲜有文献针对越库配送模式的应用做出透彻分析。因此,本文以越库配送与整车物流相结合为研究的切入点,对随机需求下整车越库装运模式的应用进行建模分析和扩展研究。本文重点探讨随机需求下的整车物流越库配送下的装运策略问题。根据汽车整车物流的特点,论文设需求到达过程为参数已知的Poisson分布,在Cetinkaya经典发货模型的基础上,结合越库配送策略的原则,考虑客户订单需求随机情况下无存储功能的整车中转库基于时间和数量整合发货问题,构建其基本模型并得描述性结论用以决策参考。为使模型在一些特定实际背景中仍具应用价值,论文进一步分析模型中几个重要参量发生变化的情况,包括变动随机需求率、浮动准备成本、多目的地配送和装运时限约束。本文的研究意义在于,一方面为整车物流问题找到切实有效的装运策略,验证理论的实践化与可行性;另一方面为越库配送在整车物流领域的应用提供依据,实现理论的自身挖掘与创新。

【Abstract】 Today’s customer-driven economy has transformed the logistics industry. To competeeffectively, suppliers are recognizing they must do business their customer’s way-findingmethods to move products more quickly, efficiently and cost effectively. To achieve thesegoals, more and more companies are finding that cross docking must play an integral partin their distribution model. On the other hand, vehicle logistics has been paid more andmore attentions recently. Although cross-docking appears in vehicle logistics overseas,there is little research on this topic in domestic academic. This thesis catches the gapbetween cross-docking and vehicle logistics to illustrate the basic model for vehiclelogistics shipment problem under cross-docking with random demand, and analyses theextended application cases.The thesis pays attention to the policies in vehicle logistics shipment problem underCross docking. First we assume that the random demand obeys the rules of PoissonProcess, then refer to Cetinkaya(2010)’s model to develop the basic model for the Crossdocking consolidation shipment problem with random demand. We consider the case withTQ-based policy in a cross docking which usually bears only a few inventories and obtainsome basic conclusions. In order to increase the application value of this model, wediscuss the cases in which some parameters changes, including the random demand rate,the fixed set up, multi-destinations distribution, and the customer disutility. The sense ofthe thesis relies on two aspects: firstly, provides the effective consolidation policies tosolve the problems in vehicle logistics; secondly, offers the theoretical evidence to thecross-docking application in vehicle logistics consolidation shipment.

  • 【分类号】F252;F224
  • 【被引频次】3
  • 【下载频次】265
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