|
Abstract: Based on the definition and classification of variational
geometric constrains, the generation and kinematic model of variational
geometric constraints network (VGCN), the generation rules of tolerance
types and representation method of tolerance network are studied, and
the optimization scheme of tolerance values are presented. The general
framework and prototype system for synthetic design of dimensional and
geometric tolerance based on three- dimensional CAD system are
established. An example is analyzed to show the scheme to be effective.
Key words: Variational geometric constrains Tolerance network
Tolerance design
CLC No: TP391.72
国家自然科学基金(59575076, 60274044)、中国博士后科学基金 (2002-17)资助项目. Received 20020408,
received in revised form 20021202
|