基于改进失效模式与后果分析的制造执行系统风险分析模型

Manufacturing Execution System Risk Analysis Based on an Improved Failure Mode and Effects Analysis Method

摘要:

针对智能制造背景下数字化工厂制造执行系统（MES）的风险管理问题，通过组合权重和灰色关联分析（GRA）模型对失效模式与后果分析（FMEA）模型进行改进，从而构建MES风险分析模型。考虑风险因子的重要性，将主观层次分析法与客观熵权法相结合确定风险因子权重，既保证重要性指标所占权重又减少了评价的主观性和片面性。专家小组对MES中的潜在风险进行识别并采用模糊语言术语集进行评价，然后通过GRA方法计算失效模式的关联度，有效提升了风险排序的精确性。

Abstract:

To manage the risk of the hmanufacturing execution system（MES） in digital factories under the background of intelligent manufacturing, this paper uses combined weight and grey relational analysis （GRA） to improve the failure mode and effects analysis（FMEA） model, and then constructs the MES risk analysis model. Considering the importance of the risk factors, it combines the subjective analytic hierarchy process and the objective entropy-weight method to assign the relative weights of risk factors, which not only analyzes systematically but also reduces the subjective influence of experts. The FMEA team identifies the potential risks in MES and evaluates them with fuzzy linguistic terms, and then calculate the grey relation degree of the failure modes by the GRA to improve the accuracy of the risk ranking effectively.