Product design stage maintainability qualitative design method

Abstract

The invention discloses a product design stage maintainability qualitative design method. The method comprises the following steps: establishing a maintainability design obstacle tree for a design target; performing qualitative analysis on the established maintainability design obstacle tree, and analyzing a minimum cut set and a minimum path set of the maintainability design obstacle tree to obtain a conflict vector of the design target; obtaining a corrected maintainability conflict matrix according to a TRIZ conflict matrix, determining a deterioration parameter and an improvement parameter of a maintainability design conflict matrix, and establishing a mapping relation between an invention principle set and a product design feature set. According to the method, a TRIZ original understanding vector is obtained by adopting a correction maintainability conflict matrix based on TRIZ, a relation matrix of a design conflict vector and an original understanding vector is obtained by combining the obtained conflict vector, and a conflict vector-original understanding vector relation equation of a corresponding conflict design system is established to help design decision making. The invention provides a method for solving the conflict problem between maintainability design requirements and other quality design characteristics.

Description

technical field [0001] The invention relates to the technical field of maintainability design, in particular to a maintainability qualitative design method in the product design stage, in particular to a maintainability qualitative design method in the product design stage based on obstacle tree and maintainability conflict matrix based on TRIZ theory. Background technique [0002] Design quality is very important to products, and obtaining high-quality products with the least cost has become the main pursuit of product design today. The formation of product design quality is not only in the manufacturing stage, but also in the design stage and after-sales service stage, especially the design stage plays a decisive role. Maintainability is a quality characteristic of the product itself and must be injected into product design. Incorporating maintainability requirements into the product design process and realizing maintainability requirements through design and verification...

AI Technical Summary

Problems solved by technology

In some cases, maintainability deficiencies found through maintainability tests are simply ignored because it is difficult to modify the design in large quantities

[0005] 2) When maintainability requirements conflict with product functions, effective conflict resolution methods cannot be provided

When design guidelines guide designers in product design, they lack a clear and operable conflict resolution method to solve the conflict between maintainability requirements and functional requirements during product design

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