Product structure modularization method and evaluation method for mechanical electronic product

Abstract

The invention discloses a product architecture modularization method and a product architecture evaluation method of mechanical and electrical products. The method comprises the following steps: firstly, acquiring a digital product architecture DSM model; executing line column transformation on the model to form a Bus module; dividing non-Bus elements into a plurality of modules according to the density of a non-zero cell in the DSM model, adding independent elements to the foremost of the line column element queue of the DSM model and adding the torn weak ties to the DSM model, performing overall tie information traffic on a plurality of proposals respectively, taking the overall tie information traffic as an evaluation standard, and selecting a model division proposal with the lowest overall tie information traffic as a final module division proposal. The method can help divide the product architecture module more intuitively and efficiently, the summarize, review and promote the relevant knowledge of the product architecture in time, and the operation is more convenient, the model can reflect the actual project, and the modularization division result is closer to the comprehensive optimal design.

Description

technical field [0001] The invention relates to a product structure modularization method and an evaluation method in product development in the field of mechanical and electronic products. Background technique [0002] Product structure is the core of mechanical and electronic product development, which directly affects product development process, developer organizational structure, product production and distribution, and product market strategy. [0003] In the development of mechanical and electronic products, complex products are often decomposed into subsystems (modules) that are small in scale, easy to develop, have relatively independent functions, and can be developed independently (or relatively independently) according to system engineering theory. After the subsystem development is completed, all the subsystems are integrated to complete the overall function of the product. This reasonable modular division of the product structure can improve the rationalizatio...

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Problems solved by technology

These methods have realized the module division of the product structure to a certain extent, but there are still the following deficiencies: (1) rely too much on the functional structure of the product, and cannot proceed without the premise of the functional structure; (2) can only be used for development The modular structure of new products cannot conduct modular analysis on existing product structures, which is not conducive to the summary, review and improvement of product structure knowledge for enterprises; (3) The expression of component interfaces inside modules and between modules is too abstract , it is difficult to understand, and it is not conducive to cross-field or interdisciplinary interaction; (4) It is difficult to divide common modules and integrated modules; (5) It is not conducive to introducing intelligent algorithms into the module division of product structure

[0005] The applicant of this patent is in the paper "Product Structure Module Clustering Method Based on Design Structure Matrix" (Journal of South China University of Technology, 2006, November) and the paper "Clustering and Reorganization of Product Structure Based on Genetic Algorithm" (Mechanical Science and Technology, 2006, 11) gives a product structure modularization method based on the design structure matrix (DSM), but this method has the following shortcomings: (1) In the process of modularization, the tearing of weak links is not considered, which will make the relationship between elements The weak connection among them influences and complicates the process of module division; (2) In the process of modularization, the method of circular search is adopted, and the operation is relatively complicated, so it is difficult to ensure the optimality; (3) In the process of modularization During the evaluation, the connection between the elements inside the module and between the modules is not considered at the same time. When there are many connections between the modules, the result of the modularization will deviate from the actual situation; (4) when evaluating the modularity , does not take into account the relationship between the bus class and other elements, which will affect the evaluation of the modularization results to a certain extent

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