Functional support for top-down assembly design

摘要

The primary task of top-down assembly design is to define a detailed product's physical description satisfying its functional requirements identified in functional design phase. An extended concept of assembly feature is proposed as a functional carrier, which is a generic relation among assembly-modelling entities. The model of assembly feature establishes the link between product's functions and parts' form features. The formal model of design process describes the top-down process for creating product's physical structure.