Study on the expression specifications of geometrical products for function, design, manufacture and verification based on the improved GPS language

详细信息    查看全文

• 作者：Limin Ma ; Xiangqian Jiang ; Jinxing Wang ; Zhengao Xu and Zhu Li
• 关键词：GPS ; Geometrical specification model ; Surface model ; Operation ; Geometrical feature ; Specification
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2007
• 出版时间：April, 2007
• 年：2007
• 卷：32
• 期：9-10
• 页码：990-998
• 全文大小：312 KB
• 刊物类别：Engineering
• 刊物主题：Industrial and Production Engineering
  Production and Logistics
  Mechanical Engineering
  Computer-Aided Engineering and Design
  
• 出版者：Springer London
• ISSN：1433-3015

文摘

For the design, manufacture and verification, a consistent geometrical model for the product functional geometry is required. In this paper, we analyze the relation of the geometrical model with the design, manufacture, and verification of the geometrical product. Based on the improved GPS language, the new concepts and mathematical tools for the geometrical specifications are defined. A surface model defined in the new GPS can be divided into three models: nominal, specification and verification surface model. Expanded geometrical features exist in three “worlds”: nominal, specification and verification worlds. Operations are specific mathematical tools to obtain ideal or non-ideal features, or values of characteristics, their nominal value and their limit(s). The operations used to define the specifications can be divided into seven classes: partition, extraction, filtration, association, collection, construction, and evaluation. With a simple mechanism as an example, the geometrical expression specifications for the functions, design, manufacture and verification of a product are illustrated.