| 摘要: |
| 装配前趋约束图的生成是装配规划的关键环节，也是其中最困难的一步.该文在讨论了几种装配前趋约束图生成方法的具体实现以及它们的优缺点之后，提出利用几何知识和装配经验知识相结合的方法，建立装配知识库/数据库，给出了几种在复杂度上可行的解决方法.最后给出结论，并简单地讨论了结合知识的数学算法的优越性，同时讨论了今后发展的方向. |
| 关键词: 自动装配，阻元，前趋约束图，几何知识，三角模型，装配数据库/知识库. |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家自然科学基金和国家863高科技项目基金资助. |
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| The Generation of Assembly Precedence Constraint Based on Knowledge |
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CHEN Zheng,ZHANG Bo
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| Abstract: |
| The generation of assembly precedence constraint is the key step of assembly planning and the most difficult one as well. In this paper, the implementations of some methods of generation of assembly precedence constraint are presented at first. The advantages and disadvantages of these methods are discussed as well. Then, one method which combines the knowledge of geometry and assembly experience is presented. By using the method, the assembly knowledge base and database are established. Several feasible solutions are provided at the same time. Finally, a conclusion is reached. The advantages of the method and suggestions on further research are provided as well. |
| Key words: Automatically assemble, blocking unit, precedence constraint, geometry knowledge, triangle model, assembly knowledge bases. |
