A control analysis method based on improved fmea

Abstract

The present invention provides a control analysis method based on improved FMEA, which can effectively improve the accuracy of risk assessment and the credibility of result analysis, and is conducive to the application of intelligent manufacturing technology, which includes the following steps: M1: determine the object to be analyzed ; M2: Establish a mathematical model for risk assessment: define the failure events that affect the object to be analyzed, that is, the division standard of disturbance factors, use the tree network structure to construct the classification framework of the object to be analyzed, introduce the risk vector and calculate the risk by using the vector modulus operation method Evaluation value, through the three-dimensional vector diagram and combined with the risk evaluation value sorted by the statistical method to analyze and judge the risk of disturbance factors and their impact on the analysis object; M3: According to the analysis and judgment results, take preventive measures for the corresponding disturbance factors to control or reduce the risk .

Description

technical field [0001] The invention relates to the technical field of intelligent manufacturing, in particular to a control analysis method based on improved FMEA. Background technique [0002] In industrial production, the design or manufacturing process of a product may fail or fail in many different forms, resulting in the failure of the product to meet the required functions, and in severe cases, it may cause production stoppage or major production accidents; failure mode and result analysis, referred to as FMEA (Failure Mode and Effects Analysis), that is, in the product design stage or manufacturing process stage, analyzes the subsystems, parts, production processes and other objects that make up the product, finds out potential failure modes and analyzes possible results, It is a preventive control analysis method that evaluates its risks, thereby taking necessary measures in advance, improving product quality and reliability, and reducing losses caused by subsequent...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the shortcomings of the traditional FMEA control analysis method, such as inaccurate risk assessment, poor result analysis reliability, and limiting the application of intelligent manufacturing technology, the present invention provides a control analysis method based on improved FMEA, which can effectively improve the accuracy of risk assessment And the credibility of the result analysis is conducive to the application of intelligent manufacturing technology

Images