Technological procedure risk evaluation method based on FRAM (failure rate assessment machine)

Abstract

The invention provides a technological procedure risk evaluation method based on a FRAM (failure rate assessment machine). The evaluation method includes the steps: S1 performing modeling for technological procedures by the aid of the FRAM: determining active sub-modules of the technological procedures, performing variation and coupling analysis of variation for the active sub-modules, and performing modeling according to analysis results; S2 building the technological procedure risk evaluation method based on the FRAM: identifying hidden paths (technological activity variation coupling modes) generating unexpected events in the technological process and key activities in the paths, and further identifying related defects of the technological procedures; S3 providing an improved scheme of the technological procedures from restraining or eliminating of variation of the key activities in the paths based on eliminating of generating paths, and performing validation verification. According to the method, modeling of the technological procedures can be achieved, risks are evaluated based on a model, the improved scheme of the technological procedures is acquired according to evaluation results, and the technological procedures are improved.

Description

technical field [0001] The invention belongs to the field of risk assessment, and in particular relates to a FRAM-based process procedure risk assessment method. Background technique [0002] The process specification is a technical document to guide the process. Its purpose is to make the process and method the most reasonable and economical, and to ensure quality and quantity, high quality and high yield. It is the most fundamental and main process document in the workshop. The process specification provides a complete and systematic procedure for the corresponding process. Therefore, it is a guide for the user when working. Correct execution of the process specification is to ensure the rhythmic operation of the workshop, improve product quality, increase labor productivity, and ensure safe production. one of the conditions. [0003] However, there are countless cases of accidents caused by violations of process regulations every year. The reasons are mainly manifested ...

AI Technical Summary

Problems solved by technology

That is to say, when writing the process specification, it is necessary to take into account the many heterogeneous influencing factors in the process and the complex correlation between each heterogeneous factor, which makes it extremely difficult to write the process specification, and it is difficult to accurately describe the complex crafting process

[0006] 2) There are always some ambiguities, ambiguities or loopholes in the process regulations

At present, there is a lack of comprehensive and systematic research and practice on risk assessment for the problem of unreasonable design or inconsistent logic of the content of the regulations

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