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Production planning of a furniture manufacturing company with random demand and production capacity using stochastic programming

机译:家具制造公司生产规划,随机需求和生产能力使用随机编程

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In this article two multi-stage stochastic linear programming models are developed, one applying the stochastic programming solver integrated by Lingo 17.0 optimization software that utilizes an approximation using an identical conditional sampling and Latin-hyper-square techniques to reduce the sample variance, associating the probability distributions to normal distributions with defined mean and standard deviation; and a second proposed model with a discrete distribution with 3 values and their respective probabilities of occurrence. In both cases, a scenario tree is generated. The models developed are applied to an aggregate production plan (APP) for a furniture manufacturing company located in the state of Hidalgo, Mexico, which has important clients throughout the country. Production capacity and demand are defined as random variables of the model. The main purpose of this research is to determine a feasible solution to the aggregate production plan in a reasonable computational time. The developed models were compared and analyzed. Moreover, this work was complemented with a sensitivity analysis; varying the percentage of service level, also, varying the stochastic parameters (mean and standard deviation) to test how these variations impact in the solution and decision variables.
机译:在本文中,开发了两个多级随机线性编程模型,一个应用于Lingo 17.0优化软件集成的随机编程求解器,该软件使用相同的条件采样和拉丁超方技术利用近似,以减少样本方差,关联具有定义平均值和标准偏差的正常分布概率分布;和第二拟议模型,具有三个值的离散分布及其各自的发生概率。在这两种情况下,生成方案树。开发的型号适用于位于墨西哥Hidalgo州的家具制造公司的总生产计划(APP),该公司在全国各地拥有重要的客户。生产能力和需求定义为模型的随机变量。本研究的主要目的是在合理的计算时间内确定汇总生产计划的可行解决方案。比较和分析了开发的模型。此外,这项工作与敏感性分析相辅相成;改变服务级别的百分比,也改变随机参数(均值和标准偏差)来测试这些变化如何影响解决方案和决策变量。

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