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首页> 外文期刊>International Journal of Production Research >A new value stream mapping approach for complex production systems
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A new value stream mapping approach for complex production systems

机译：用于复杂生产系统的新价值流映射方法

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In this paper, an innovative framework to apply Value Stream Mapping to products with complex Bill of Materials is presented. Value Stream Mapping is one of the best tools to map a process and to identify its main criticalities. Unfortunately, it can be effectively applied to linear systems only. When the manufacturing process is complex with flows merging together, Value Stream Mapping cannot be used straightforwardly. Thus, the main objective of this work is to solve this limitation so that lean production can be enhanced in complex systems too. The proposed approach is based on seven iterative steps and integrates Value Stream Mapping with other tools typical of industrial engineering. The basic idea is to execute a preliminary analysis to identify the 'critical production path' using the Temporized Bill of Material. Then, improvements are made considering all possible sharing with other secondary paths as possible constraints. Once the critical path has been optimized, a new path may become critical. Thus, the analysis proceeds iteratively until the optimum is reached and the Work In Process level has decreased under a desired value. A case study taken from a real setting environment is finally presented to assess the validity of the methodology proposed here.
机译：在本文中，提出了一个创新的框架，可将价值流图应用于具有复杂物料清单的产品。价值流映射是映射流程并确定其主要关键的最佳工具之一。不幸的是，它只能有效地应用于线性系统。当制造流程复杂且流程合并在一起时，无法直接使用“价值流映射”。因此，这项工作的主要目的是解决这一限制，以便在复杂的系统中也可以提高精益生产水平。所提出的方法基于七个迭代步骤，并将“价值流图”与工业工程中的其他典型工具集成在一起。基本思想是执行初步分析，以使用临时物料清单确定“关键生产路径”。然后，进行改进，将与其他辅助路径的所有可能共享作为可能的约束。优化关键路径后，新路径可能会变得至关重要。因此，分析将反复进行，直到达到最佳值并且“在制品”水平降低到所需值以下为止。最后提出了一个来自真实环境的案例研究，以评估此处提出的方法的有效性。

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