Method for describing product information model

Abstract

A method for describing a product information model comprises the following steps: (1) classifying the product information to be described into various discipline models according to professional disciplines; (2) defining characteristic parameters of each discipline model as an attribute domain of the discipline model; (3) constructing an uniform access interface of the attribute domain, and normatively packaging a computation procedure related to the discipline model as an algorithmic domain of the discipline model; (4) obtaining input data from the attribute domain by a computation procedure in the algorithmic domain via the uniform access interface for computation, and assigning the computation result to the corresponding parameters in the attribute domain; (5) recording an index of a discipline model related to the discipline model as a relation domain of the discipline model, and when the characteristic parameters in the attribute domain of the discipline model change, transferring the changed characteristic parameters to the attribute domain of the related discipline model according to the index, and starting from he step of (4) for the related discipline model to realize the automatic updating of relevance among the models.

Description

Technical field [0001] The present invention involves an information model description method of a product of a product of a product, which is a computer -assisted design technology field. Background technique [0002] Product information model description method has always been a hotspot in the field of computer -aided design in machinery products, especially the enhancement of the current means of computer -assisted design. People are no longer satisfied with the computer -assisted design of the product from a certain professional perspective of the product, and they are more morePay attention to the multi -disciplinary collaborative design of the entire product.The key to the comprehensive design of the product of the product is the description method of the product information model. The previous product information model description focuses on a certain field of product design, such as more mature product geometric information description methods, innovative design -based d...

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Problems solved by technology

[0004] Such as Chinese patent ZL200610109444.4, the invention name is "template-based rapid engineering design method", and Chinese patent ZL200510123863.9, the invention name is "file-based digitalization of complex products In the two patents "model integration design method", two different methods are used to achieve multi-disciplinary optimization. By encapsulating and integrating existing algorithm programs to build an optimized design process model, standardize the data transfer between discipline models, It is convenient to carry out multi-disciplinary optimization design, but there is no general method for the description of the characteristic attributes of the subject model itself, product design knowledge, and logical relationship information between subject models

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