RESEARCH ON VARIATIONAL MODEL

Abstarct Variational model is a new kind of theoretical product model induced from those models currently provided. It has some new characterics and is the key research subject of product data model for new generation of CAD/CAM system. After introducing some new ideas about general product data model, this paper provides the formal definition of the variational product model, including its functions, characterics and main applications. Finally, the key problems left are listed for future research.