三维虚拟加工环境及其关键技术的研究.pdf

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第 13 卷第 10 期计算机辅助设计与图形学学报 V o l. 13,N o. 10
2001 年 10 月 JOU RNAL O PU T ER A IDED D ES IGN & COM PU T ER GRA PH ICS O ct. , 2001

三维虚拟加工环境及其关键技术的研究
沈春龙张友良
(南京理工大学 C IMS 研究所南京 210094)
摘要在分析虚拟制造特点的基础上, 提出了三维可视化虚拟加工环境的系统结构, 介绍了支持三维建模仿真
的组件设计、基于装配模型的三维实体建模方法、N C 代码解析器的设计方案以及基于毛坯表面三角片离散化的加
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工过程仿真算法, 并开发了虚拟加工环境原型系统. 该系统能够实时地反映零件虚拟原型的加工成形过程仿真, 并
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进行可加工性分析.
关键词虚拟制造, 虚拟加工环境, 数控代码, 加工过程仿真
中图法分类号 T P391
Research on 3D V irtual M ach ining Env ironm en t and Key Technology
SH EN Chun L ong ZHAN G You L iang
(Institu te of C IM S , N anj ing U niversity of S cience and T echnology , N anj ing 210094)
Abstract A system arch itectu re of 3D virtualm ach in ing environm en t is p resen ted based on the
analysis of characteristics of virtual m anufactu ring. Its m ain con stituen ts include: componen t de
sign suppo rting 3D modeling and simu lation, modeling of virtual m ach in ing cen ter based on its
assem b ly model, N C code parser and simu lation of m ach in ing p rocess based on triangu lar faceted
model of w o rk p iece. D etails of their imp lem en tation are illu strated. T he p ro to type system of vir
tual m ach in ing environm en t has been developed to realize the in tegrated simu lation of m ach in ing
p rocess of w o rk p iece and to analyze the m ach inab ility of virtual p ro to type part.
Key word