工程机械旧件再制造闭环物流网络研究

发布时间：2018-05-14 16:28

本文选题：再制造 + 闭环物流网络　；参考：《华中科技大学》2015年硕士论文

【摘要】：随着我国工程机械旧件回收与再制造的产业化发展,回收与再制造闭环物流管理问题日益得到重视。回收与再制造闭环物流的不确定性、结构复杂的特点,导致传统的物流网络和信息系统无法开展工程机械产品物流活动,因此,对于工程机械旧件再制造闭环物流网络的研究是十分必要的。本文首先分析工程机械旧件回收与再制造流程,提出了工程机械旧件再制造闭环物流网络设计模型,该模型中新增的拆解组装中心,将整机预拆解处理和整机组装与零部件再制造活动分开,各个设施功能细分的网络结构有助于工程机械旧件再制造物流系统以低成本的运营。在环境需求确定的前提下,放松约束后,采用遗传算法求解该模型,对网络结构布局进行设计,同时对网络结构布局与回收率、设施容量的关系进行分析与讨论,案例分析验证该方法是可行的。针对闭环物流网络设计中的高度不确定性影响,在确定性闭环物流网络模型基础之上,本文引用广义区间理论建立不确定环境下闭环物流网络模型,并利遗传算法完成不确定环境下网络结构设计。并比较了Laplace比较准则、乐观比较准则以及悲观比较准则对设计结果的影响,对于经济情况比较脆弱的时,可以选择乐观比较准则下的最优选址策略。对于经济情况比较稳定时,决策者可以选择Laplace比较准则和悲观比较准则下的最优选址策略。通过比较确定环境下和不确定环境下的闭环物流网络结构,得出不确定环境下的闭环物流网络结构能够抵抗输入参数的影响,该网络布局优于不确定环境下的物流网络结构。本文基于工程机械再制造闭环物流网络决策模型,开发了服务于工程机械旧件再制造闭环物流网络结构决策模块,该模块主要完成对设施点的管理以及支持决策者完成再制造闭环物流网络设计的功能,为闭环物流网络模型实际应用提供了有利的决策工具。
[Abstract]:With the industrial development of recycling and remanufacturing of used parts of construction machinery in China, the closed-loop logistics management of recycling and remanufacturing has been paid more and more attention. Because of the uncertainty and complex structure of closed-loop logistics for recycling and remanufacturing, traditional logistics networks and information systems are unable to carry out logistics activities of construction machinery products. It is necessary to study the closed-loop logistics network for the remanufacturing of old parts of construction machinery. In this paper, the process of recycling and remanufacturing of old parts of construction machinery is analyzed, and a closed-loop logistics network design model for remanufacturing of used parts of construction machinery is proposed. The pre-disassembly and assembly of the whole machine are separated from the remanufacturing activities of the parts and components. The network structure of the subdivision of each facility function is helpful to the operation of the remanufacturing logistics system of the old parts of the construction machinery at low cost. Under the premise of determining the environmental requirements, the genetic algorithm is used to solve the model, and the network structure layout is designed. The relationship between the network structure layout and the recovery rate and the facility capacity is analyzed and discussed. The case study shows that this method is feasible. Aiming at the influence of high uncertainty in the design of closed-loop logistics network, based on the deterministic closed-loop logistics network model, this paper uses the generalized interval theory to establish the closed-loop logistics network model in uncertain environment. Parallel genetic algorithm (GA) is used to design the network structure in uncertain environment. The effects of Laplace comparison criterion, optimistic comparison criterion and pessimistic comparison criterion on the design results are compared. When the economic situation is relatively weak, the optimal location strategy under the optimistic comparison criterion can be chosen. When the economic situation is relatively stable, the decision makers can choose the optimal location selection strategy under the Laplace comparison criterion and the pessimistic comparison criterion. By comparing the closed-loop logistics network structure in the uncertain environment and the uncertain environment, it is concluded that the closed-loop logistics network structure in the uncertain environment can resist the influence of input parameters, and the network layout is better than that in the uncertain environment. Based on the closed-loop logistics network decision model for remanufacturing of construction machinery, this paper develops a decision-making module of closed-loop logistics network structure serving for the remanufacturing of old parts of construction machinery. This module mainly completes the function of managing the facility point and supporting the decision makers to complete the design of the remanufacturing closed-loop logistics network, which provides a favorable decision-making tool for the practical application of the closed-loop logistics network model.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU60

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