分布式曲面设计和快速原型制造中的模型描述  

A Triangular-Mesh Based Methodology of Model Description in Collaborative Design and Prototype Manufacturing of Surface

作　　者：千学明[1,2] 

机构地区：[1]西安交通大学机械制造系统工程国家重点实验室,陕西西安710049 [2]西安交通大学机械工程学院CAD/CAM研究所,陕西西安710049

出　　处：《微电子学与计算机》2008年第12期169-173,共5页Microelectronics & Computer

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-0928)

摘　　要：在分析分布式曲面设计和快速原型制造特点的基础上,建立了曲面协同设计和快速原型制造的基础信息框架.针对自由曲面的设计要求和快速原型制造的特点,提出了采用三角网格模型作为曲面的描述方式.此描述方法分别采用自定义数据格式T和CMESH作为系统格式和网络传输格式,采用STL格式作为快速原型制造的数据格式.在设计了三种数据的转换方法后,通过实验验证了文中所提模型描述方法,实验表明,采用此方法可以使网络数据传输量减少为1/12,满足分布式曲面设计和快速原型制造的要求.After analyzing the characteristics in distributed collaborative design and rapid prototype manufacturing of surface, the paper puts forward an infrastructure for surface design and rapid prototype manufacturing. The infrastructure uses a method based on triangular mesh model to descript the surface. In the method, two data formats are designed as system format and communication one, which are T and CMESH. And STL format is used as interface in prototype manufacturing. After designing the transform ways among these three formats, experiment is done to demonstrate the transform ways. In the experiment, the transmission data via Web decreased to 1/12, the description methodology meets the requirements well in collaborative design and rapid prototype manufacturing of surface.

关 键 词：分布式协同设计 自由曲面 三角网格模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]