Method for forming nuclear power equipment forging material quality judgment matrix based on group judgment

Abstract

The invention discloses a nuclear power equipment forging material quality judgment matrix forming method based on group judgment. The method comprises the following steps: step 1), establishing a forging material quality evaluation hierarchical structure based on an analytic hierarchy process; 2) confirming an initial quality judgment matrix form of each hierarchical structure, and respectively establishing an initial quality judgment matrix of each hierarchical structure; 3) verifying the consistency of the initial quality judgment matrix of each hierarchical structure; 4) establishing a grade deviation matrix of each hierarchical structure quality judgment matrix; and 5) constructing a final quality judgment matrix of each hierarchical structure through a group judgment method, calculating the weight coefficient of each hierarchical structure layer by layer, and determining the weight coefficient of each evaluation index to the overall quality of the forging. According to the forming method of the nuclear power equipment forging material quality judgment matrix based on group judgment, the objective and universally representative nuclear power equipment forging material qualityjudgment matrix can be obtained.

Description

technical field [0001] The invention belongs to the technical field of nuclear power equipment quality evaluation, and in particular relates to a method for forming a material quality judgment matrix for nuclear power equipment forgings based on group judgment. Background technique [0002] Forging materials are widely used in the manufacture of nuclear power equipment. Manufacturing quality is critical to the safety and reliability of equipment. The current main quality assessment method is to judge whether the forging material is qualified according to the design and construction code of nuclear power plant mechanical equipment, such as the American ASME code and the French RCCM code. There is a lack of a more accurate quality measurement method that is suitable for the manufacturing characteristics of nuclear power equipment forging materials. evaluation method. [0003] Analytic Hierarchy Process can decompose a complex problem layer by layer, and consider various fact...

AI Technical Summary

Problems solved by technology

At present, there have been patents that have begun to apply AHP to solve the quality evaluation of forging materials for nuclear power equipment, such as the application number: 201910902400.4, a Chinese invention patent application named "A method for evaluating the quality of forging materials for nuclear power equipment based on AHP" As disclosed in , the second step of the patent requires the construction of a quality judgment matrix, but it does not specify how to construct a reasonable quality judgment matrix

[0004] Generally speaking, multiple judgment matrices can be obtained for the same event, but it is impossible to simply determine which judgment matrix is ​​the most accurate. Only by combining multiple judgment matrices can a more accurate result be obtained, so it is necessary to find a The method can comprehensively consider multiple quality judgment matrices to form an objective and universally representative quality judgment matrix

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