多品种小批量模式下连接器生产调度研究

发布时间：2018-04-11 00:04

本文选题：多品种小批量 + 生产计划与控制　；参考：《西南科技大学》2017年硕士论文

【摘要】：论文研究了多品种小批量模式下的连接器生产调度计划问题。针对多品种小批量模式中连接器企业生产存在的一些问题和难点,分析利用约束理论的中的DBR方法,建立了基于约束理论的连接器生产调度计划问题模型,并求解。模型考虑了连接器生产中实际存在的装配约束、工艺约束、交货期约束等约束条件,利用DBR方法,对生产中的“瓶颈资源”进行优先调度,根据约束理论中推拉相结合的理念,对瓶颈前后的生产作业分别实行拉式生产、推式生产,以及在装配环节后面设置交货缓冲来提高整个系统的生产效率和订单达成率。本论文的主要研究内容包含:(1)阐述了基于约束理论(TOC)的连接器特点的主生产计划模型、以及结合9条基本原则和DBR的生产控制方法并较为详细的解释了其步骤。重点讨论了在多品种小批量生产环境下,如何运用DBR对连接器的生产进行识别瓶颈、设定缓冲、瓶颈资源排程。(2)对连接器的生产调度问题进行数学符号结合三参数表示法进行描述。对连接器的生产加工环境、加工约束和优化目标进行了详细的说明。在概述了多品种小批量生产模式下生产调度问题特点的基础上,对多品种小批量生产模式下的调度问题进行了数学建模,并且为使数学模型更加接近实际情况,对数学模型进行一定程度的补充,为调度系统的建立提供做足前期准备。(3)对问题模型进行求解,结合约束理论中的DBR方法对连机器生产中的瓶颈资源进行了整理:对其前面的半成品生产设计成了拉式生产;对其后面的组装生产采用推式生产;并在最后的装配加上了出货缓冲。一系列举措的设计实施来保证多品种小批量模式下的连接器生产调度的成产效率和订单准时达成率。最后通过对多品种小批量模式下的连接器生产调度问题的研究,并将建立的系统模型应用到实际连接器生产案例中,有效的提高了案例的订单按期交货率,合理控制库存,降低了生产过程中的成本,有助于提升公司的产品竞争力验证了该模型生产调度系统的可行性和优化性。
[Abstract]:In this paper, the production scheduling problem of connectors in multi-variety and small batch mode is studied.In view of some problems and difficulties in the production of connectors in multi-variety and small-batch mode, this paper analyzes and utilizes the DBR method of constraint theory, and establishes the production scheduling problem model of connectors based on constraint theory, and solves it.The model takes into account the actual constraints such as assembly constraints, process constraints, delivery time constraints and so on in the production of connectors. By using the DBR method, the "bottleneck resources" in production are scheduled first, according to the concept of combination of push and pull in constraint theory.In order to improve the production efficiency and the order fulfillment rate of the whole system, the production before and after the bottleneck is carried out respectively, the pull production, the push production and the delivery buffer are set behind the assembly link.The main research contents of this thesis include: (1) the main production planning model based on the characteristics of the connector based on constraint theory (TOC) is expounded, and the production control method of DBR is explained in detail by combining 9 basic principles.This paper mainly discusses how to use DBR to identify bottlenecks and set buffers for connector production in multi-variety and small-batch production environment.Bottleneck resource scheduling (2) describes the production scheduling problem of connectors with mathematical symbols and three-parameter representation.The manufacturing environment, processing constraints and optimization objectives of connectors are described in detail.On the basis of summarizing the characteristics of the production scheduling problem in the multi-variety and small-batch production mode, the mathematical modeling of the scheduling problem in the multi-variety and small-batch production mode is carried out, and in order to make the mathematical model more close to the actual situation,The mathematical model is supplemented to a certain extent, and the problem model is solved in advance preparation for the establishment of the dispatching system.Combined with the DBR method in the constraint theory, the bottleneck resources in the connection machine production are sorted out: the semi-finished product production in front of it is designed into a pull-type production, the assembly production behind it is produced by pushing production, and the production of the semi-finished product in front of the semi-finished product is designed into a pull-type production.At the end of the assembly, the shipping buffer was added.Design and implementation of a series of measures to ensure the production scheduling efficiency and order on time rate of connector production scheduling in multi-variety and small batch mode.Finally, through the research of the connector production scheduling problem under the multi-variety and small-batch mode, the system model is applied to the actual connector production case, which effectively improves the delivery rate of the case order on time, and reasonably controls the inventory.It reduces the cost in the production process and helps to improve the product competitiveness of the company. The feasibility and optimization of the model production scheduling system are verified.
【学位授予单位】：西南科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM503.5

【相似文献】