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NURBS曲线敏感点速度平滑插补算法研究

董伯麟 易志福

董伯麟, 易志福. NURBS曲线敏感点速度平滑插补算法研究[J]. 机械科学与技术, 2017, 36(8): 1230-1236. doi: 10.13433/j.cnki.1003-8728.2017.0814
引用本文: 董伯麟, 易志福. NURBS曲线敏感点速度平滑插补算法研究[J]. 机械科学与技术, 2017, 36(8): 1230-1236. doi: 10.13433/j.cnki.1003-8728.2017.0814
Dong Bolin, Yi Zhifu. Exploring Interpolation Algorithm of Smooth Feedrate Scheduling for Sensitive Points of NURBS Curve[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(8): 1230-1236. doi: 10.13433/j.cnki.1003-8728.2017.0814
Citation: Dong Bolin, Yi Zhifu. Exploring Interpolation Algorithm of Smooth Feedrate Scheduling for Sensitive Points of NURBS Curve[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(8): 1230-1236. doi: 10.13433/j.cnki.1003-8728.2017.0814

NURBS曲线敏感点速度平滑插补算法研究

doi: 10.13433/j.cnki.1003-8728.2017.0814
详细信息
    作者简介:

    董伯麟(1972-),副教授,博士,研究方向为高速高精度数控系统、机器人控制系统等,dongbl2000@163.com

Exploring Interpolation Algorithm of Smooth Feedrate Scheduling for Sensitive Points of NURBS Curve

  • 摘要: NURBS插补相对于传统直线和圆弧插补具有极大优势,但其存在敏感点区域插补速度波动剧烈而引起超出机床加工运动能力范围的问题。为了提高NURBS曲线插补运动学性能,改善其加速度和加加速度轨迹突变问题,提出一种NURBS曲线几何特性的敏感点区域速度平滑的插补算法。其通过搜索G1或G2不连续的断点和具有大曲率的关键点,在这些敏感点处分别利用FIR级联滤波器进行S型加速度的平滑速度规划,而后采用断点处速度近似调整的方法,来对其运动学特性进一步改善。仿真和实验结果表明,该算法在敏感点处平滑速度规划和运动学性能良好。
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出版历程
  • 收稿日期:  2016-05-09
  • 刊出日期:  2017-08-05

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