三维CAD技术研究进展及其发展趋势综述

Review of Research Progress and Development Trends of 3D CAD Technology

三维CAD软件是整个工业软件体系的核心与基础,但目前中国高端三维CAD软件市场被国外工业巨头所垄断,国产三维CAD软件在中端市场的占有率也很低,严重威胁我国工业系统的安全。为探明三维CAD发展方向,给出国产三维CAD软件高质量发展的可行路径,系统梳理了三维几何建模引擎、几何约束求解、CAD数据交换、CAD接口与二次开发、产品信息集成、设计知识处理、大规模装配、基于模型的定义等三维CAD关键技术的研究进展,探讨了其技术难点及发展方向;在深入调研国内外三维CAD软件发展现状的基础上,分析了国产三维CAD软件存在的差距及其根源;阐述了三维CAD软件集成化、智能化、云端化、专业化、一体化等发展趋势,并给出了国产三维CAD软件实现高质量发展的若干建议。

3D CAD software is the core and foundation of the whole industrial software system.However,the high-end 3D CAD software market in China is currently monopolized by foreign industrial giants while the share of domestic 3D CAD software in the middle market is also very low,which seriously threatens the security of our industrial system.In order to explore the development trends of 3D CAD and propose a feasible path for the high-quality development of domestic 3D CAD software,the research progress of 3D CAD key technologies such as 3D geometric modeling engine,solution of geometric constraints,CAD data exchange,CAD interface and secondary development,integration of product information,processing of design knowledge,large-scale assembly,model-based definition and so on are systematically reviewed,the technical challenges and development directions of which are also discussed.The development status of domestic and foreign 3D CAD software is investigated comprehensively and thoroughly,based on which the gap between domestic and foreign 3D CAD software as well as the underlying causes is analyzed.The development trends including integration,intelligentization,cloudification,professionalization and unification of 3D CAD software are expounded.And finally,some suggestions on the realization of high-quality development of domestic 3D CAD software are given.