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Multi-procedure process reliability quantitative modeling method

A modeling method and reliability technology, applied in the direction of reasoning method, design optimization/simulation, special data processing application, etc., can solve problems such as complex multi-process product manufacturing quality analysis

Pending Publication Date: 2021-05-14
BEIJING POWER MACHINERY INST
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Problems solved by technology

[0012] In view of this, the present invention provides a quantitative modeling of multi-process process reliability, which can be applied to the multi-process manufacturing quality analysis and evaluation of products such as turbine engines with complex structures, and can solve complex and multi-process product manufacturing quality analysis. the puzzle

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  • Multi-procedure process reliability quantitative modeling method
  • Multi-procedure process reliability quantitative modeling method

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Embodiment Construction

[0128] Examples are given below to describe the present invention in detail.

[0129] This embodiment provides a multi-process process reliability quantitative modeling method, and the specific steps of the method are as follows:

[0130] Step 1, identifying process failure modes;

[0131] Step 2. Evaluate process failure modes and find key process quality characteristics;

[0132] Step 3, constructing the mapping relationship between process factors (5M1E) and key process quality characteristics;

[0133] Step 4, modeling the process reliability;

[0134] Among them, in step 1, the specific steps for identifying the process failure mode are as follows:

[0135] Step 1-1, decompose the constituent elements of the process:

[0136] Decompose the process constituent elements of any process in the product manufacturing process according to process requirements, execution results, resource requirements, execution environment and detection control; let any one of the processes be...

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Abstract

The invention discloses a multi-procedure process reliability quantitative modeling method. The method comprises the following specific steps: step 1, identifying a process failure mode; step 2, evaluating a process failure mode, and finding out quality characteristics of a key process; step 3, constructing a mapping relation between the process factors and key process quality characteristics; and step 4, carrying out modeling on the process reliability. The method can be applied to multi-process manufacturing quality analysis and evaluation of products such as turbine engines with complex structures, and the problem of manufacturing quality analysis of complex and multi-process products can be solved.

Description

technical field [0001] The invention belongs to the technical field of multi-process process reliability research, and in particular relates to a multi-process process reliability quantitative modeling method. Background technique [0002] In recent years, with the continuous improvement of product complexity, the manufacturing process of products mostly includes multiple processes. Different from other multi-stage systems, the multi-process manufacturing process has some unique characteristics: 1) The final quality of the product is the result of the accumulation and superposition of the quality of the previous multiple processes, and due to the complex influence relationship between multiple processes, the cumulative process of quality It is not linear; 2) Due to the limitations of measurement and cognition, the process quality and final product quality are not deterministic, and their values ​​often fluctuate around the nominal value given by the design or process. Corre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06N5/04G06F119/02
CPCG06F30/20G06N5/048G06F2119/02
Inventor 周建华李伊张发平毛善斌马同玲
Owner BEIJING POWER MACHINERY INST
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