A quantitative evaluation method for qualitative factors of maintenance safety based on virtual maintenance

Abstract

The invention relates to a virtual maintenance-based quantitative evaluation method for maintenance safety qualitative factors and belongs to the technical fields of virtual reality technology and mathematical science-aided product design. The virtual maintenance-based quantitative evaluation method comprises the following steps: firstly, determining the maintenance safety qualitative factors in specific product maintenance safety design; performing hierarchical division on the maintenance safety qualitative factors; performing ranking weight definition on the maintenance safety qualitative factors of a hierarchical structure by applying an analytic hierarchy process to finish product virtual prototype-oriented maintenance procedure inspection and factor analysis in a virtual environment; performing evaluation on question grades of all factors of a bottom layer in the hierarchical structure by combining analysis results of the factors and maintenance safety question classification, and performing quantitative evaluation on all the factors by combining evaluated values and ranking weight. According to the virtual maintenance-based quantitative evaluation method provided by the invention, by fully utilizing single-factor evaluation results, provided by virtual maintenance, of the maintenance safety qualitative factors, the quantitative evaluation is provided for the maintenance safety qualitative factors; at the initial stage of the product design, an ancillary support is objectively and systematically provided for the product maintenance safety qualitative factors.

Description

technical field [0001] The invention belongs to the technical field of product design aided by virtual reality technology and mathematical science, and relates to an objective and systematic quantitative evaluation technology for qualitative factors of product maintenance safety in the early stage of product design. Background technique [0002] Most of the repair work in product repair is still done by people. Especially for new products, the structure and function are relatively complicated, and the use of new materials and electronic systems makes it difficult to determine the time and location of the fault during the maintenance process. Maintenance requirements have increased, and maintenance personnel must have richer knowledge and skills. A considerable part of the maintenance work is of long duration, the task requires increased utilization, and the reduction of maintenance downtime is required. Therefore, maintenance personnel working in highly complex systems are ...

AI Technical Summary

Problems solved by technology

This working method mainly focuses on the single factor of the qualitative factor of maintenance safety, and has a certain guiding effect on the problem discovery and improvement of the single factor, but the conclusion drawn by this kind of work is often a qualitative concept of whether the product design is good or bad. The evaluation description and overall evaluation of the qualitative factors of product maintenance safety are relatively objective, and in this single factor analysis, the direct mutual important relationship between different maintenance safety qualitative factors of the same product is often ignored when considering the use and maintenance status. There is a lack of improvement guidance for a specific qualitative factor of safety. For example, after a comparative analysis with product qualitative factor design criteria, both product visibility design and error prevention design need to be improved. However, considering its use and maintenance characteristics, visibility is crucial for prevention The improvement of errors is more important, so how to deal with such problems after the qualitative single factor analysis results of maintenance safety are obtained, and how to draw opinions on product maintenance safety improvement is particularly important

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