泛在制造环境下动态物料配送模式研究

发布时间：2018-12-19 21:04

【摘要】：物料配送作为生产系统的关键环节，是生产顺利进行的保障。随着生产形态转向多品种、少批量模式，要求物料配送快速、准确的响应生产线动态变化的物料需求。因此，响应敏捷性成为物料配送不断追求的目标，而对生产状态信息全面准确获取、充分高效利用是达成目标的关键。论文针对物料配送对响应敏捷性的需求，引入泛在网思想，研究以信息处理为核心的物料配送模式，通过突破现行物料配送的瓶颈，促进企业竞争力的提升。论文以具有丰富制造信息的泛在制造环境为背景，以车间物料配送为研究对象，结合MRP和JIT控制理念，采用反馈控制方式，围绕如何充分发挥信息优势来提升物料配送响应速度和响应准确性，从三个方面开展研究： ①动态物料配送模型方面。在分析传统物料配送方式基础上，针对传统物料配送缺少实时生产执行进程信息支持，致使配送响应能力不足的问题，归纳丰富泛在制造信息，引入泛在网思想，构建基于泛在制造信息的动态物料配送模型；并对模型框架结构、模型运行流程和模型决策流程进行特征分析，进一步讨论模型中三个控制闭环如何克服物料配送与生产线信息联系不足问题。 ②动态物料配送决策方面。针对现有物料配送仅仅考虑如何满足生产线物料需求，而未考虑配送成本节约问题，从成本优化角度，给出配送时机决策方法，同时基于联合优化运输—库存成本方式，考虑生产计划变更因素，建立基于成本的动态物料配送批量决策模型，并对模型进行求解，得出影响配送批量决策关键因素，而且设计算例验证模型正确性和有效性。 ③物料配送关键技术方面。针对现有配送BOM未能反映配送时间信息，，制约物料配送响应速度提升的问题，依据装配工艺流程和产品BOM，结合物料配送执行过程信息，在制造BOM基础上，构建基于工艺流程的工位配送BOM模型，并给出工位配送BOM应用实例。
[Abstract]:As the key link of production system, material distribution is the guarantee of smooth production. With the shift of production pattern to multi-variety and less batch mode, material distribution is required to respond quickly and accurately to the changing material requirements of the production line. Therefore, responding to agility has become the goal of material distribution, and the key to achieve the goal is to obtain the production state information accurately and to make full and efficient use of it. Aiming at the demand of material distribution to respond to agility, this paper introduces the idea of ubiquitous network, and studies the material distribution mode with information processing as the core. By breaking through the bottleneck of material distribution, we can promote the competitiveness of enterprises. This paper takes the ubiquitous manufacturing environment with abundant manufacturing information as the background, takes the workshop material distribution as the research object, unifies the MRP and the JIT control idea, adopts the feedback control way. Focusing on how to give full play to the advantages of information in order to improve the response speed and accuracy of material distribution, the research is carried out from three aspects: 1 dynamic material distribution model. Based on the analysis of the traditional material distribution mode, aiming at the lack of real-time production execution process information support in the traditional material distribution, this paper summarizes and enriches the ubiquitous manufacturing information and introduces the ubiquitous network idea. A dynamic material distribution model based on ubiquitous manufacturing information is constructed. The model frame structure, model running process and model decision process are analyzed, and how to overcome the problem of insufficient information connection between material distribution and production line is discussed. 2 dynamic material distribution decision. In view of the problem of how to meet the material requirement of production line, but not the cost saving of distribution, the method of timing decision is given from the point of view of cost optimization, at the same time, based on the joint optimization of transportation and inventory cost, the method is proposed. Considering the factors of production plan change, the dynamic batch decision model of material distribution based on cost is established, and the model is solved, and the key factors influencing the batch decision are obtained, and the correctness and validity of the model are verified by a design example. 3 material distribution key technology. In view of the problem that the present distribution BOM can not reflect the information of distribution time and restrict the improvement of material distribution response speed, according to the assembly process and product BOM, combined with material delivery execution process information, based on the manufacturing BOM. The BOM model of station distribution based on process flow is constructed, and an application example of station distribution BOM is given.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH165.1;F252

【参考文献】