Aviation product MBOM health degree evaluation method oriented to manufacturing process

Abstract

The invention relates to the field of aircraft manufacturing, in particular to a manufacturing process-oriented aviation product MBOM health degree evaluation method, which comprises the following steps of: acquiring EBOM data, MBOM data and production sortie information of different manufacturing stages of an aviation product; constructing a data set according to the collected data; importing the collected data into a health degree evaluation model, and analyzing an object, a difference type, a difference sortie and a difference generation day number between the EBOM and the MBOM through construction and timeliness ratio analysis; and performing construction accuracy analysis to analyze an MBOM construction abnormal object, an abnormal reason and an item number, calculating MBOM index weights in different manufacturing stages according to a criterion layer and an index layer of MBOM health degree evaluation, and analyzing the MBOM health degree according to the model. According to the method, the data exception, the exception type and the disposal mode of a certain sortie can be identified, a large amount of repeated comparison work is avoided, the verification time is saved, and the manufacturing quality of aviation products is improved.

Description

technical field [0001] The invention relates to the field of aircraft manufacturing, in particular to a manufacturing process-oriented MBOM health degree evaluation method for aviation products. Background technique [0002] Aviation manufacturing enterprises usually use MBOM to express the manufacturing process flow of aviation products and the delivery order of supporting materials, and use this as an important basis for business activities such as enterprise process design, production planning and scheduling, material procurement, financial settlement, and technical status control. Due to the rich categories of aviation products developed by aviation manufacturing enterprises, frequent design changes, changeable states, and iterative optimization of process technology levels, process designers continue to reconstruct and maintain MBOM for a long time. MBOM data is large, changes frequently, and has complex relationships. There are fluctuations in the accuracy and timeline...

AI Technical Summary

Problems solved by technology

[0004] (1) Compared with the existing technology, it is found that the patent number: CN201410166902.2 proposes an aircraft manufacturing configuration control accuracy detection system and method. In the invention, a BOM data checking method based on a single sortie is proposed. The defect of this method lies in the process Personnel build all sorties of MBOM based on EBOM. If the BOM data check is based on a single sortie, the scope of check is limited, and abnormal data may not be found in time.

[0005] (2) The current monitoring of MBOM is only to check the conformity of MBOM and EBOM materials, the monitoring results can only reflect the integrity of MBOM, its accuracy and timeliness cannot be evaluated, and the evaluation index is too single to accurately reflect the existence of MBOM risk

[0006] (3) Use the same MBOM evaluation method to evaluate the batches in different manufacturing stages (including batches not put into production, batches with only materials put into production, batches entering the assembly stage, batches entering the final assembly stage, batches entering the flight test stage, and batches delivered to customers )'s aviation product MBOM, which cannot meet the project's engineering-oriented requirements for MBOM control

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