面向整车生产车间SPS物料配送的方法研究

发布时间：2018-03-25 08:15

本文选题：物料配送系统　切入点：SPS配送　出处：《合肥工业大学》2017年硕士论文

【摘要】：随着市场竞争的加剧和顾客对产品个性化、多样化要求的增强,整车制造企业不断推出新车型以迎合市场的需求,为了提高装配线的利用率,整车生产车间普遍采用多车型混流生产的方式。由于多车型、多配置和准时制(Just In Time,JIT)生产的要求,导致线边物料的种类和数量成倍增加,这对车间的物料配送提出了更高的要求。辆份式配送(Set Parts Supply,SPS)的应用能有效解决生产线边物料存储空间不足的问题,本文以整车生产车间物料SPS配送过程为研究对象,提出了配送松弛度最小化的配送方案,实现了物料准确、及时配送。论文首先阐述了整车生产车间常用的物料拉动方式,在介绍推式配送和拉式配送两种基本思想的基础上,对车间常用的物料配送模式进行了概述;随后从物料布局、分拣和运行流程等方面详细介绍了SPS配送的相关理论。然后在此基础上研究了SPS模式下搬运工具的数量配置问题,在规划阶段提出了一种简便的估算方法用于指导配置方案的设计,接着采用免疫算法求解了将搬运任务进行分组以及组内任务排序的搬运工具数量配置模型,发现后一种方法能得到更优的数量。然后针对生产过程中各种约束条件下的物料SPS配送问题,提出配送松弛度的概念,并以此为优化目标,构建了配送松弛度最小化的数学模型,采用启发式的非线性整数规划方法求解模型,得出了单AGV单次配送的速度和配送量,并在Flexsim仿真平台上验证了模型和求解方法的有效性。最后在SPS配送理论和方法的指导下,设计开发了一套面向整车生产车间的SPS物料配送系统,并在某整车生产车间得以实现,验证了本文提出的配送方法的可行性和有效性。
[Abstract]:With the intensification of market competition and the enhancement of customers' demand for individuation and diversification of products, the whole vehicle manufacturing enterprises continuously introduce new models to meet the needs of the market, in order to improve the utilization rate of assembly lines, The vehicle production workshop generally adopts the method of multi-model mixed production. Because of the requirement of multi-model, multi-collocation and just-in-time production, the variety and quantity of line side materials increase exponentially. This puts forward higher requirements for material distribution in workshop. The application of set Parts supply Parts can effectively solve the problem of insufficient storage space of materials on the side of production line. This paper takes the process of material SPS distribution in the whole vehicle workshop as the research object. This paper puts forward a distribution scheme that minimizes the degree of relaxation of distribution, realizes accurate and timely distribution of materials. Firstly, the paper expounds the material pulling methods commonly used in the whole vehicle workshop, and introduces the two basic ideas of push distribution and pull distribution. This paper summarizes the material distribution modes commonly used in workshop, then introduces the theory of SPS distribution in detail from the aspects of material layout, sorting and running flow, and then studies the quantity configuration of handling tools in SPS mode. In the planning phase, a simple estimation method is proposed to guide the design of the configuration scheme. Then, an immune algorithm is used to solve the allocation model of the number of handling tools for grouping and sorting tasks within the group. It is found that the latter method can get a better quantity. Then, aiming at the SPS distribution problem of materials under various constraints in the production process, the concept of distribution relaxation is put forward, which is regarded as the optimization goal. The mathematical model of distribution relaxation minimization is constructed, and the heuristic nonlinear integer programming method is used to solve the model. The speed and quantity of single AGV single distribution are obtained. Finally, under the guidance of the SPS distribution theory and method, a set of SPS material delivery system for the whole vehicle production workshop is designed and developed, and it is realized in a vehicle production workshop. The feasibility and effectiveness of the proposed method are verified.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB498

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