Multi-level assembly model for top-down design of mechanical products

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• 作者：Xiang Chen ^{xchen@cad.zju.edu.cn} ; Shuming Gao ; ^{smgao@cad.zju.edu.cn} ; Youdong Yang ^{yyoudong@cad.zju.edu.cn} ; Shuting Zhang ^{zhangshuting@cad.zju.edu.cn}
• 关键词：Top-down assembly design ; Top-down component design ; Multi-level assembly model ; Shape skeleton ; Layout skeleton ; Skeleton interface ; Skeleton feature ; Inheritance mechanism
• 刊名：Computer-Aided Design
• 出版年：2012
• 期刊代码：32_00104485
• 类别：cp
• 出版时间：October, 2012
• 卷：44
• 期：10
• 页码：1033-1048
• 文件大小：2840 K

摘要

To enable next generation CAD tools to effectively support top-down design of products, a top-down assembly design process is refined from the traditional product design process to better exhibit the recursive-execution and structure-evolvement characteristics of product design. Based on the top-down assembly design process, a multi-level assembly model is put forward to capture the abstract information, skeleton information and detailed information involved. The multi-level assembly model is a meta-level implementation and is easy to be extended. Moreover, the inheritance mechanisms are explored to ensure the feasibility of information transferring and conversion between different design phases in the top-down assembly design process. A top-down assembly design sample is analyzed at length to show the application effects of the multi-level assembly model and the relevant inheritance mechanisms. In addition, a practical topic about the model adaptation of existing CAD systems is also discussed for a broader application of the top-down assembly design. Finally, the conclusion of the work and the future directions for further exploration are given.