离散制造企业生产物流系统优化

发布时间：2018-07-31 17:45

【摘要】：随着全球化经济进程的加速，离散制造企业之间的竞争也更为激烈，如何降低产品成本成为企业在竞争中取得领先的关键因素。制造企业为了让生产成本降低，应该恰当配置物流资源，建设适宜的物流工程。大多数的物流系统是自然形成的，因而在其可靠性、协调性、合理性以及是否最优上难以得到保证。如何降低生产成本，提高企业生产效率，同时提高设施设备利用率是生产物流系统优化所必须考虑的问题。针对离散制造企业生产物流系统所存在的种种问题，考虑到目前常用方法的局限性，本文提出一套新的生产物流系统优化方法。首先，根据生产物流系统阶段性特点，将其分解为原材料配送系统、在制品搬运系统、产成品搬运系统以及废料回收系统。其次，分布优化。将不同的子系统分别从物料分析，，配送单元确定，配送工具选择以及配送路线选择等方面进行优化。在优化的过程中，对于不同的物料采取不同的配送方式及配送工具，以及配送线路优化使用不同的算法：重量大、体积大、数量少的物料采用直送工位式配送方式，其线路优化使用最短路方法；重量小，体积小，数量多的物料采用分送式配送方式，其线路优化使用节约里程法。以大型箱体生产企业A作为研究对象，将提出的生产物流配送系统的优化方法应用到实际生产中，针对不同的子系统进行了优化。最后，通过对研究案例的取得的效果进行评价，验证该方法在实际生产物流系统改善中的科学性及可行性，对于离散制造企业的生产物流系统优化具有一定的参考价值和指导意义。
[Abstract]:With the acceleration of global economic process, the competition among discrete manufacturing enterprises is becoming more fierce. How to reduce the cost of products becomes the key factor for enterprises to get ahead in the competition. In order to reduce production cost, manufacturing enterprises should allocate logistics resources properly and construct suitable logistics engineering. Most logistics systems are naturally formed, so it is difficult to ensure their reliability, coordination, rationality and optimization. How to reduce the cost of production, improve the efficiency of production, and improve the utilization of facilities and equipment is the problem that must be considered in the optimization of production logistics system. In view of the various problems existing in the production logistics system of discrete manufacturing enterprises and considering the limitations of the current commonly used methods, this paper proposes a new optimization method for production logistics system. Firstly, according to the stage characteristics of the production logistics system, it is decomposed into the raw material distribution system, the in-process handling system, the finished product handling system and the waste recovery system. Secondly, distribution optimization. Different subsystems are optimized from material analysis, distribution unit determination, distribution tool selection and distribution route selection. In the process of optimization, different distribution methods and tools are adopted for different materials, and different algorithms are used for the optimization of distribution routes. The shortest path method is used for the route optimization, the distribution method is used for the material with small weight, small volume and large quantity, and the mileage saving method is used for the route optimization. Taking the large box production enterprise A as the research object, the optimization method of the production logistics distribution system is applied to the actual production, and the optimization for different subsystems is carried out. Finally, through the evaluation of the effect of the case study, it is proved that the method is scientific and feasible in the improvement of the actual production logistics system. It has certain reference value and guiding significance for the optimization of production logistics system of discrete manufacturing enterprises.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：F425;F253

【参考文献】