Variant design method of meeting engineering constraint conditions

Abstract

The invention discloses a variant design method of meeting engineering constraint conditions. The method comprises the steps as follows: a parameterized three-dimensional model is built; a parameterized variant design user interface is developed; model data is imported into an Excel; parameters and an APDL command stream are compiled; CAD and CAE model parameters are input into the user interface; the data in the Excel and the APDL command stream are automatically read, modified and updated; variant design is carried out; a background starts CAE software to automatically read the data in the Excel table and the APDL command stream, to build a model, to parameterize CAE analysis and to output the result; whether the engineering constraints are met or not is judged; the parameters are automatically modified and analyzed until the result meets the engineering constraints; the result is automatically returned to CAD software to generate a new model; the final result is output; and a data file is stored. Parameterized modeling and rapid variant design of parts are achieved; the problem of variant design which does not need manual intervention and meets the engineering constraint conditions is solved; the analysis efficiency is greatly improved; the product design cycle is shortened; and the production efficiency is improved.

Description

technical field [0001] The invention relates to a variant design method satisfying engineering constraint conditions, in particular to a variant design method satisfying engineering constraint conditions. Background technique [0002] With the increasing competition in the market, the application of variant design technology is becoming more and more extensive. Product variant design is the process of designing a new product by changing the local structure or size of existing similar products or modules according to the requirements of the design task and under the condition that the overall structure and function remain unchanged. Most of the variant design technologies only focus on the size design of the product’s geometric structure, while ignoring the practical application significance of the product. They lack the judgment of engineering constraints such as stiffness and strength of the product under various working conditions, and it is difficult to ensure the product...

AI Technical Summary

Problems solved by technology

This method can efficiently and accurately establish a simulation model and apply it to simulation analysis, which facilitates cycle repeatability analysis and solves the problem of variant design that meets engineering constraints without manual intervention.

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