M公司批次/连续混合型生产作业计划中线性规划模型构建及优化的应用研究

Abstract

本文结合M公司面临的内外部环境以及目标，选取了代表性的MD生产线，结合其半成品批次生产和包装成品连续生产的特点，建立了一套解决现存人工排产弊端的生产作业计划数学规划模型。模型以进行平衡化处理后的周产品计划作为输入，以各台包装机和关键工艺涂层间的具体作业计划作为输出，对其建模假设、目标函数和约束条件进行了仔细选择，利用线性规划和求解软件工具，实际模拟出了可以取得最小生产费用的优化结果。在此基础上，结合实际生产数据样本进行了结果探讨；并且从生产的实际情况出发，对优化结果进行了探讨和调整优化。最后，论文对类似企业的应用进行了应用前提的提炼，并对应用的进一步优化提出了建议。 This article has set up a linear programming model to determine M company’s operational pro-duction planning, with an optimal output compared with the current manual scheduling operation. This model has chosen a typical line in the M production, which is a mix of batch and sequential production; it has used the evened weekly production plan as an input, the detailed operational production time/batch of all packaging machine and coating line as an output, and has performed a careful selection on modeling assumptions, target function and constraints. The model has used solver as a key solving tool, and has run an optimized result which would generate a minimum cost for production. On top of this, a correction and discussion on the results are performed based on production needs to better fit into the overall execution. This paper has also proposed a general rule to apply in similar productions, offered suggestions for future optimization, and therefore has great value in future applications in similar enterprises.