The research of the key technology of construct mechanical product rapid design system

Facing the peculiarity of mechanical product, combined with the methods that modern CAD technology offered, the concept of rapid design system is given out, the characters of product rapid design system is summed up. The key technologies to construct product rapid design system, which are the feature-based modeling, modeling between parts based on relativities, knowledge expression based on model, the construction of product model based on instance, the user interface facing the work flow of define product design, master model, etc. are researched.