• 论文 •    

自下而上产品设计中的自适应装配建模

方水良,杨维学,李金华   

  1. 浙江大学 现代制造工程研究所,浙江杭州310027
  • 出版日期:2008-11-15 发布日期:2008-11-25

Adaptive assembly modeling in bottom-up product design

FANG Shui-liang, YANG Wei-xue, LI Jin-hua   

  1. Institute of Manufacturing Engineering, Zhejiang University, Hangzhou 310027, China
  • Online:2008-11-15 Published:2008-11-25

摘要: 自下而上的产品建模方法虽在已有信息化设计资源重用以及设计团队协作等方面比自上而下方法有明显优势,但也存在装配冲突、变型困难等缺点。为此提出柔性组件模型及其自适应装配建模方法。基于标准化、系列化、模块化、合理化等原则,建立了产品各组件的包含选型或变型规则的柔性事物特性表和相应的柔性组件模型。利用这种柔性组件进行自下而上的产品装配建模时,根据组件间的装配要求和柔性组件的选型或变型规则,基于简单冲突消除目标或综合优化目标,自适应地选择或调整相关组件并实现有效的产品装配建模。以某织机机架柔性自适应装配建模为例进行了示范,证明该方法有助于提高设计效率,降低设计成本。

关键词: 产品设计, 自适应装配, 柔性组件, 装配冲突, 自下而上, 建模, 剑杆织机

Abstract: Although the bottom-up product modeling methodology has obvious advantages over the top-down modeling as the reuse of the informatization design resources and design teamwork cooperation, it has disadvantages as assembly conflicts and difficulty for design variation. To deal with this problem, the flexible components model and its self-adaptive assembly modeling methodology were proposed. For all the components, based on the principles of standardization, serialization, modularization, rationalization, et al, flexible tabular layouts of article characteristics including the rules for components selection or variation were set up, the corresponding flexible components model was also established. To assemble a product with this bottom-up method, according to the components assembly requirements and the selection or variation rules of the flexible components, upon a simple conflicts elimination objective or an optimization objective, the right components would be selected or adjusted and the effective assembly could be realized. The adaptive assembly process for the framework of certain rapier loom was demonstrated. The proposed method was helpful to improve the design efficiency and reduce the design cost.

Key words: product design, self-adaptive assembly, flexible component, assembly conflict, bottom-up, modeling, rapier loom

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