复杂三维CAD装配模型特征信息提取技术研究
Research on Feature Information Extraction Technology of Complex 3D CAD Assembly Model
郝博 1王杰 1闫俊伟 1王婵娟1
作者信息
- 1. 东北大学机械工程与自动化学院,辽宁 沈阳 110819;东北大学航空动力装备振动及控制教育部重点实验室,辽宁 沈阳 110819
- 折叠
摘要
针对飞机、大型输送机等复杂三维CAD装配模型具有装配零件多,配合复杂,在提取装配体特征信息过程中,有信息提取不完整、深度不够的问题,提出一种复杂产品装配特征信息提取的方法,该方法以CATIA软件为平台,采用构件的应用编程(Component Application Architecture,CAA),二次开发快速提取特征信息功能.结合多叉树前序列遍历思想,深度优先搜索的算法,逐层深入,可以完整提取多层嵌套的复杂装配体的配合和约束信息,充分利用复杂三维CAD装配模型特征信息,更有力的支持装配工艺规划.同时,通过选择输送某种民航飞机机翼的输送机为例,验证此方法的可行度.
Abstract
To solve the problems of incomplete information extraction and insufficient depth in the process of extracting the assem-bly feature information of complex 3D CAD assembly models,such as aircrafts、large conveyers which have many assembly parts and complex coordination,a method of extracting assembly feature information of complex products was proposed,which took CATIA software as the platform.Component Application Architecture(CAA)is used to develop the function of quick extraction of feature information.Combined with the idea of multi-tree pre-sequence traversal and the depth-first search algorithm,it can completely extract the fit and constraint information of multi-layer nested complex assembly,make full use of the feature informa-tion of complex3D CADassembly model,and more strongly support the assembly process planning.At the same time,the feasibil-ity of this method is verified by taking a civil aircraft wing conveyor as an example.
关键词
装配模型/CATIA/二次开发/信息提取/多叉树遍历算法/深度优先搜索Key words
Assembly Model/Catia/Secondary Development/Information Extraction/The Traversal Algorithm of Multi-Tree/Depth-First Search引用本文复制引用
出版年
2024
NETL
NSTL
万方数据