基于节拍预测的Job Shop作业车间物料需求计划研究

发布时间：2019-06-05 09:12

【摘要】：由于市场需求向客户个性化迅速转型,企业的生产模式由连续型变为离散型生产,产品型号和规格越来越多,物料种类也随之变得种类繁多,生产车间的物料配送不及时进而影响生产停产,线边库物料堆积等一系列现象。为了提高生产过程中物料送达的准确性和及时性,本文提出了基于生产节拍的物料需求计划计算方法,并设计了以此方法为基础的生产物料配送计划,使得车间生产满足JIT准时制思想的要求。首先,介绍了Job Shop作业车间不同物料配送模式下生产计划的制定,然后针对现阶段生产计划的制定存在的普遍问题,提出了三个Job Shop作业车间物料计划优化目标。从优化目标着手,综合实际生产中线边库存、仓库库存以及AGV小车运载量等约束,确定单元物料需求的整合规则,对单元物料需求根据整合规则进行计算整合成配送物料需求计划。最后基于物料需求计划计算方法,设计了一种生产物料配送计划,以RFID无线射频技术和条码技术相结合的方式进行信息采集,辅助该物料配送系统的开发和设计,验证了物料需求计划计算方法的可行性。
[Abstract]:Due to the rapid transformation of market demand to customer individualization, the production mode of enterprises has changed from continuous to discrete production, and more product models and specifications have become more and more, and the types of materials have also become diverse. The material distribution in the production workshop is not timely and then affects a series of phenomena, such as production shutdown, material accumulation in the line side warehouse and so on. In order to improve the accuracy and timeliness of material delivery in the production process, a material demand planning calculation method based on production beat is proposed in this paper, and a production material distribution plan based on this method is designed. So that the workshop production to meet the requirements of JIT punctual system. Firstly, this paper introduces the formulation of production plan under different material distribution modes in Job Shop workshop, and then puts forward three optimization objectives of material planning in Job Shop workshop in view of the common problems existing in the formulation of production plan at the present stage. Starting from the optimization goal, the integration rules of unit material requirements are determined by combining the constraints of inventory on the middle line of actual production, warehouse inventory and the carrying capacity of AGV trolley. According to the integration rules, the unit material demand is calculated and integrated into the distribution material demand plan. Finally, based on the calculation method of material requirement planning, a kind of production material distribution plan is designed, which combines RFID radio frequency technology and bar code technology to collect information to assist the development and design of the material distribution system. The feasibility of the calculation method of material requirement planning is 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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