Research Initiation: Three-Dimensional Spatial Reasoning in Mechanical Assemblies

研究启动：机械装配中的三维空间推理

• 批准号: 9011389
• 负责人: Ehud Kroll
• 金额: $ 5.95万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9011389&HistoricalAwards=false
• 关键词: Research; Initiation; Three; Dimensional; Spatial

This research will develop representations and algorithms for generating assembly sequences of products. The problem is theoretically of combinatorial complexity. A method has been developed to describe axially symmatic developed to describe assemblies based upon high-level engineering features and mating conditions. A rule-based algorithm derives a graph-structure corresponding to an exploded-view of the assembly. Interpreting this information as precedences among components, another program generates selected assembly sequences. This research will extend the methodology to general, three- dimensional cases. The importance of this research is twofold; automatically providing the designer with information regarding the assembly process can significantly enhance the simultaneous engineering process; and by showing that computerized spatial reasoning is possible with high-level input descriptions, powerful design assistants can be developed for computer aided design systems.

本研究将发展产品组装序列的表示与演算法。这个问题在理论上属于组合复杂性问题。一种基于高级工程特征和配合条件的轴向对称描述方法已经被开发出来。基于规则的算法派生出与程序集的爆炸视图相对应的图结构。将此信息解释为组件之间的优先级，另一个程序生成选定的装配序列。这项研究将把方法论扩展到一般的、三维的案例。这项研究的重要性是双重的；自动向设计人员提供有关装配过程的信息可以显著提高工程过程的同步性；通过展示计算机空间推理在高级输入描述下是可能的，可以为计算机辅助设计系统开发强大的设计助手。