NURBS曲面结构与分面策略  

Structure and surface-splitting strategy of NURBS surface

作　　者：艾萍[1] 赵博[2] 

机构地区：[1]青岛理工大学艺术学院,山东青岛266033 [2]青岛大学机电工程学院,山东青岛266071

出　　处：《机械设计》2013年第5期101-103,共3页Journal of Machine Design

基　　金：山东省高等学校教学改革资助项目(2009256)

摘　　要：复杂的曲面需要将面拆分成多块,然后再将曲面搭接成需要的连续性级别即可。基于NURBS标准4边结构与特殊状态的3边曲面结构、周期曲面、封闭曲面、修剪面等非4边结构,提出复杂造型NURBS曲面拆分为基础曲面与混合曲面的分面策略及分面时应注意的问题。并结合实际案例,分析同一造型的曲面的2种不同分面思路。The complex surface is frequently split into a nubmer of pieces,and then two edges between the surfaces are matched to achieve the level of required continuity.Based on NURBS standard quadrangular structure and non-quadrangular structures,such as the special trilateral surface structure,periodic surface,closed surface and trimmed surface,the surface-splitting strategy of splitting the complex NURBS surface into base surface and blend surface is proposed,and the questions which need to be noticed in the process of surface-splitting are presented.Combining with some actual cases,two different surface-splitting ideas are analyzed to deal with same model.

关 键 词：工业设计 计算机辅助设计 NURBS曲面 曲面结构 分面策略 

分 类 号：TB319[一般工业技术—材料科学与工程]