|Table of Contents|

Analysis and application of heterogeneous CAD 3D model assembly technology for liquid rocket engine (PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2023年02期
Page:
94-99
Research Field:
目次
Publishing date:

Info

Title:
Analysis and application of heterogeneous CAD 3D model assembly technology for liquid rocket engine
Author(s):
LIN Yuan;  XIONG Lifang;  HU Haifeng
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
Keywords:
liquid rocket engine;  heterogeneous CAD;  BOM structure;  3D model assembly
PACS:
V434; TP391
DOI:
-
Abstract:
In view of the application status of liquid rocket engine 3D model assembly technology, the data formats of different 3D modeling tools are incompatible with each other and cannot be by called each other.In the management system of product data, the heterogeneous CAD 3D model assembly cannot automatically generate the product BOM structure, and the assembly information cannot be transmitted across software.The problems are studied in this paper, such as the study on the mutual transfer for Pro/E and NX 3D structure, the assembly of heterogeneous 3D structure, automatic generation of product BOM structure, and the synchronization of changes.The lightweight model JT and intermediate format are adopted to realize the assembly and management of heterogeneous CAD 3D models.Adopting the lightweight model JT assembly method can not only ensure the consistency between JT and 3D assembly model, but also realize the automatic generation and update of assembly BOM structure.The STEP intermediate format is adopted for assembly, which solves the conversion control of lightweight models in the management system of product data, reduces the assembly requirements of heterogeneous 3D models in the CAD integrated environment, ensures the consistency between STEP files and 3D models, and achieves the automatic update of BOM structure of heterogeneous CAD 3D models and the control of engine technical status in the unified environment.

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