计算机工程与应用2012，Vol.48Issue(30)：14-18,5.DOI:10.3778/j.issn.1002-8331.2012.30.004
一种改进的NURBS曲线插补算法
Improved algorithm of NURBS interpolation
摘要
Abstract
For the large change of NURBS curve curvature or curvature discontinuous may cause fast change of speed, and beyond the machine's acceleration and deceleration capability, an improved NURBS interpolation algorithm is proposed by using curve's geometrical features. The curve is divided into two parts named gentle curvature segments and sudden change curvature segments. According to the sudden change curvature segment's beginning point, ending point and the lowest speed point, trapezoidal acceleration and deceleration method is used for speed optimization to realize fast and smooth interpolation. The simulation results indicate that this improved NURBS interpolation algorithm can get a smooth feedrate profile with high efficiency and ensure the machining accuracy.关键词
非均匀有理B样条曲线(NURBS)/曲率突变段/梯形加减速/平滑插补Key words
Non-Uniform Rational B-Spline(NURBS)/ sudden change curvature segments/ trapezoidal acceleration and deceleration/ smooth interpolation分类
信息技术与安全科学引用本文复制引用
聂明星,蒋新华,陈兴武..一种改进的NURBS曲线插补算法[J].计算机工程与应用,2012,48(30):14-18,5.基金项目
福建省科技重大专项(No.2010HZ0002-1) （No.2010HZ0002-1）
福建省教育厅科技计划项目(No.JA10216). （No.JA10216）
