CNC系统中NURBS曲线实时插补算法研究  

A Study on the Algorithm for Real-time Interpolation

作　　者：边玉超[1] 张莉彦[1] 戴莺莺[1] 陈虎[2] 

机构地区：[1]北京化工大学机电学院,北京100029 [2]北京凯奇数控设备成套总公司,北京100088

出　　处：《机械制造与自动化》2003年第6期36-39,共4页Machine Building & Automation

摘　　要：提出了一种基于德布尔递推算法的NURBS曲线实时插补方法。该算法显著减小了计算时间,从而能够适应伺服驱动系统的高采样频率要求。通过一个实际插补例子,对算法的实时性、实际进给速度和误差等方面进行了分析,证明能够满足实际加工的要求。Developing a real-time interpolator for NURBS curves is a trend of modern CNC system.In this paper,a calculation based on de Boor algorithm for the real-time interpolation of NURBS curves is presented. The proposed approach significantly reduces calculation time, so it can meet the requirement of high sampling frequency. In the end of the paper,through a practical instance,analysis of real feed-rate and error were put forward.

关 键 词：计算机数控(CNC) NURBS曲线 实时插补 德布尔算法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]