基于MBD技术的三维装配工艺系统构建及应用

MBD-based three-dimensional assembly process modeling and application

全面考虑产品的各种制造信息,以MBD技术作为装配工艺建模过程的技术支撑,研究了基于MBD技术的零件工艺信息模型、工序模型、装配工艺模型的构建方法.借助HOOPS软件,利用C#语言实现基于XML Schema模式的零件工艺信息模型的结构化记录,利用PMI信息的添加技术,实现了零件工艺信息的可视化,利用Protégé本体构建工具构建装配工艺本体.最后基于HOOPS图形内核,采用C#语言,在Net Framework下,采用装配工艺仿真、工艺参数数据库、图形用户环境开发等技术,将三维模型、多媒体的装配动画、工艺参数数据库等融合起来,建立基于MBD三维装配工艺建模系统平台,并以复合材料舱段中的桁条装配工序的仿真为例说明了MBD技术在三维装配工艺系统中的应用.

By fully considering a variety of manufacturing information of products,and having MBD as technical support in the modelling process of assembly technology,the methods for building the three models were studied,i. e.,the information model of part technology process based on MBD,procedure model,and assembly technology model. In addition,the structured records of the information model of part technology process were realized based on XML schema and with the aid of HOOPS software and C# language. The visualization of the information of part technology process is achieved by the additive technique of PMI information. The noumenon of the assembly technology is established by using the building tool of Protégé noumenon. In the end,based on HOOPS graphic kernel,and using C# language and the technologies,such as assembly technology simulation,techniques for establishingprocessing parameters database,development technology of user graphic environment and so on,3D model,multimedia assembly animation and processing parameter database are integrated in the Net Framework to build an MBD-based platform of modelling system of 3D assembly technology. Furthermore,an application of the above system into the assembly procedure simulation of the stringer in a cabin of composite materials is illustrated.