Lightweight method of super-large three-dimensional model of carrier rocket

Abstract

Provided is a lightweight method of a super-large three-dimensional model of a carrier rocket. The method comprises the steps that 1, conventional part three-dimensional modeling is conducted on the carrier rocket in a Creo environment; 2, chemical milling plate wall part molding is conducted; 3, porous part modeling is conducted; 4, assembly three-dimensional modeling is conducted on the carrier rocket in the Creo environment; 5, an instrument is installed on a rocket body, cable laying is conducted through a skeleton, and a reference relation of a cable laying path and a reference model is disconnected; 6, except mechanisms, parts are made to be completely positioned in assemblies; 7, a model rotating detail control function is enabled; 8, an assembled rocket model is subjected to sectional interference checking, screening is conducted on each section of the related assembled rocket model, interference volume is calculated for model obtained after screening, if interference exists, the interference-related model is redesigned, and the steps are executed again from the first step.

Description

technical field [0001] The invention relates to digital prototype design, assembly and interference analysis technology of aerospace products, and belongs to the field of digital design and system simulation of aerospace products. Background technique [0002] With the rapid development of the aerospace industry, there are more and more model tasks, and the model development cycle is continuously shortened. The importance of digital modeling testing in the development process is increasingly reflected. The digital prototype has gradually become an engineering design product as important as the physical prototype, and it is a carrier that embodies the intellectual achievements of the design department. During the design and application of 3D digital prototypes of aerospace products, due to the large scale of the 3D model and the large number of models, etc., the design process of pressurized conveying system, instrument cable and final assembly has long waiting time, difficul...

AI Technical Summary

Problems solved by technology

During the design and application of 3D digital prototypes of aerospace products, due to the large scale of the 3D model and the large number of models, etc., the design process of pressurized conveying system, instrument cable and final assembly has long waiting time, difficulty in opening, operation freeze, The response speed of the final assembly process is slow, and the results of the general assembly are almost impossible to browse, which greatly affects the efficiency of the final assembly design and the use of aerospace product models

At the same time, there are a certain number of shrinkage envelope models in the aerospace product model, which leads to the long calculation process of interference check and the lack of sufficient reliability of the results.

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