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[1]林 源,熊莉芳,胡海峰.液体火箭发动机异构CAD三维模型装配技术分析与应用[J].火箭推进,2023,49(02):94-99.
　LIN Yuan,XIONG Lifang,HU Haifeng.Analysis and application of heterogeneous CAD 3D model assembly technology for liquid rocket engine[J].Journal of Rocket Propulsion,2023,49(02):94-99.
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液体火箭发动机异构CAD三维模型装配技术分析与应用

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 49 期数: 2023年02期 页码: 94-99 栏目: 目次 出版日期: 2023-04-25
Title:
Analysis and application of heterogeneous CAD 3D model assembly technology for liquid rocket engine
文章编号:
1672-9374(2023)02-0094-06
作者:
林 源; 熊莉芳; 胡海峰
(西安航天动力研究所,陕西 西安 710100)
Author(s):
LIN Yuan;  XIONG Lifang;  HU Haifeng
(Xi'an Aerospace Propulsion Institute, Xi'an 710100, China)
关键词:
液体火箭发动机;  异构CAD;  BOM结构;  三维模型装配
Keywords:
liquid rocket engine;  heterogeneous CAD;  BOM structure;  3D model assembly
分类号:
V434; TP391
文献标志码:
A
摘要:
针对某新型液体火箭发动机三维模型装配技术应用现状,不同三维建模工具之间数据格式互不兼容,不能相互调用,以及在产品数据管理系统中,异构CAD三维模型装配无法自动生成产品BOM结构,装配信息无法跨软件进行传递。对Pro/E与NX三维模型相互调用、异构三维模型装配、产品BOM结构自动生成、更改同步等问题进行了研究,采取轻量化模型JT和中间格式进行装配实现异构CAD三维模型的装配和管理,采用轻量化模型JT装配方法,既可以保证JT与三维模型的一致性,也可以实现装配BOM结构的自动生成和更新。采用STEP中间格式进行装配,解决了产品数据管理系统中对轻量化模型转换控制,降低了CAD集成环境下异构三维模型的装配要求,确保了STEP文件与三维模型的一致性,实现了异构CAD三维模型在统一环境下BOM结构的自动更新和发动机技术状态的管控。
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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备注/Memo

收稿日期:2021-10-13; 修回日期:2022-02-13
作者简介:林源(1979—),男,硕士,高级工程师,研究领域为发动机数字化设计。

更新日期/Last Update: 1900-01-01