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Product structure design structure matrix partitioning method

A technology for designing structure matrix and product structure, applied in the field of product concept design, can solve the problems of low accuracy rate, cumbersome binary coding method, cumbersome binary coding, etc., and achieve the effect of improving the accuracy rate

Inactive Publication Date: 2015-04-29
DALIAN UNIV
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  • Abstract
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Problems solved by technology

However, it only operates on the elements in the upper triangular cells in the DSM to minimize the objective function. This does not guarantee that the elements in the lower triangular cells can achieve the same effect, and the accuracy rate is not high.
Liu Jiangang and others proposed to use genetic algorithm to cluster and divide the product structure DSM model, but the binary coding method is cumbersome, not only requires decoding, but also requires a large amount of calculation
In view of the shortcomings of the objective function that only calculates some elements, the accuracy rate is not high, and the binary encoding is cumbersome, we need to study a more intelligent product structure DSM model division method

Method used

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Embodiment 1

[0040] The embodiments of the present invention are implemented on the premise of the technical solutions of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0041] First, model the turbocharger product to generate a product structure DSM model, and assign numbers to the 15 design parameters, which are represented by letters A~O, and the strength of the correlation between parameters is represented by numbers 1~ 9, the larger the number, the stronger the correlation, and the diagonal position is meaningless. The specific content is shown in Table 2.

[0042] Table 2 DSM model of turbocharger product structure

[0043]

[0044] Second, do the following:

[0045] Step 1: Determine the encoding method. Analyzing the DSM model of turbocharger product structure, it can be seen that there are 15 design parameters in total, that ...

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Abstract

The invention provides a product structure design structure matrix (DSM) partitioning method. The partitioning method adopts an improved genetic algorithm, a fresh fitness function is established, in other words, the minimization of the sum of distances between all elements of a DSM model and the diagonal line serves as a target; in the partition figuring process, a natural number coding manner is adopted, crossover operators are removed, and the advantages that decoding is omitted and figuring is more convenient are provided; the effectiveness of the partitioning method is verified by adopting a turbocharger product DSM model serving as a sample.

Description

technical field [0001] The invention relates to a division method of a product structure design structure matrix, in particular to a turbocharger product structure DSM division method, which belongs to the field of product conceptual design. Background technique [0002] Design is an important part of product production, and the quality of design directly affects the cost, cycle time and production efficiency of products. Coupling and conflicts will inevitably appear in the design process. Cao Pengbin and others proposed that the primary task of eliminating conflicts is coupling analysis, and coupling analysis requires operations such as clustering and division of product structures. The principle of product structure DSM model division is to make the elements in the matrix as close as possible to the diagonal position through row and column transformation. For a simple design structure matrix, it can be realized by manual method, but with the increase of the number of rows...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/16G06N3/12
Inventor 张强周扬杰张建新魏小鹏
Owner DALIAN UNIV
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