关键词: 自动几何建模, 中文自然语言, 设计自动化, 产品数据表达与交换标准

Abstract: Aiming at the deficiency of human-computer interaction's ability and design automation level for geometrical modeling,the automatic geometrical modeling method driven by Chinese natural language was proposed.The automatic geometrical modeling framework driven by Chinese natural language was given.The description and understanding methods for geometrical intention natural language were discussed,and the corresponding representations were constructed.The standard processing algorithm for natural language based on geometrical element matching was proposed,and the standard description of geometrical modeling intention's natural language was realized.The data expression and mapping method of geometrical modeling elements were analyzed,and the mapping mechanism of modeling intension was constructed.The STandard for the Exchange of Product model data(STEP)automatic mapping of geometrical element was elaborated and the processing procedure of the redundant information was presented,which could realize the automatic geometrical modeling of Chinese natural language driven.The relevant protosystem was developed,and the result showed the feasibility and the rationality of the proposed method.

Key words: geometrical modeling, Chinese natural language, design automation, standard for the exchange of product model data