Failure knowledge storage and push method for FMEA (failure mode and effects analysis) process

Abstract

The invention relates to a failure knowledge storage and push method for the FMEA (failure mode and effects analysis) process. The failure knowledge storage and push method comprises four parts in eight steps: 1, creating a failure product storage module; 2, constructing a failure information storage module; 3, constructing a failure knowledge storage module based on the ontology theory; 4, constructing a word segment module for a failure mode description statement; 5, constructing a failure mode theme matching module; 6, enabling a semantic description model to describe a failure mode theme obtained in the step 2 of the part 2 by using a WDF (word description model); 7, calculating the semantic similarity of information in a failure database and the to-be-inquired fault mode theme; and 8, sequentially reasonably determining the fault mode, the fault reason and the fault influence of a designated product from the lowest indenture level to the initial indenture level of the product according to the step-by-step solution characteristics of the blackboard process. The failure knowledge storage and push method for the FMEA process achieves the effective storage and management and the efficient utilization of the history failure data, and completes the analysis work of the FMEA from the lowest indenture level to the initial indenture level.

Description

technical field [0001] The invention discloses a fault knowledge storage and push method in the FMEA analysis process. The method utilizes intelligent word segmentation, semantic retrieval and blackboard process to realize FMEA fault mode storage, query, and push. It is suitable for the FMEA analysis process of complex products, and can effectively improve the efficiency of FMEA analysis of complex products through the push of fault knowledge between the FMEA analysis module and the historical fault database. The invention belongs to the field of reliability and system engineering. Background technique [0002] FMEA is the core work item of equipment RMS design analysis, and an important input of testability, supportability, and safety design analysis, so it must be carried out in an all-round way. However, for the development of complex equipment, FMEA has a large workload, is time-consuming and laborious, and requires high experience and ability of analysts. In the curre...

AI Technical Summary

Problems solved by technology

In this way, the existing fault knowledge cannot be fully utilized, and the FMEA work cannot be carried out efficiently.

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