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.
