| 时间分割法抛物线插补算法研究 |
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| 引用本文： | 罗欣,李光斌,朱涵梁,吴雅.时间分割法抛物线插补算法研究[J].华中科技大学学报(自然科学版),1994(7). |
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| 作者姓名： | 罗欣 李光斌 朱涵梁 吴雅 |
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| 作者单位： | 华中理工大学机械科学与工程学院 |
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| 摘 要： | 根据时间分割法的基本思想，推导出抛物线插补的数学模型，提出一新的算法，分析了理论插补精度，并编制了相应的轨迹插补程序．与其他插补方法的比较显示了新算法的优越性．
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| 关 键 词： | 计算机数控 时间分割法 插补原理 精度 |
An Approach to the Time-Slicing Interpolation Algorithm for a Parabola |
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| Luo Xin of School of Mech.Sci and Engin.,H.U.S.T.,Wuhan,China.
, Li Guangbin,Zhu Hanliang,Wu Ya.An Approach to the Time-Slicing Interpolation Algorithm for a Parabola[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1994(7). |
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| Authors: | Luo Xin of School of MechSci and Engin HUST Wuhan China Li Guangbin Zhu Hanliang Wu Ya |
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| Institution: | Luo Xin of School of Mech.Sci and Engin.,H.U.S.T.,Wuhan430074,China.
, Li Guangbin,Zhu Hanliang,Wu Ya |
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| Abstract: | The interpolation algorithm for a parabola based on the principle of the time-slicingmethod is proposed.A parabola can be approximated by chords of equal length and eachchord is machined within a time interval of the same period.The feed increments along theactive and passive axes are calculated respectively by the corresponding formulae selected au-tomatically according to where the interpolation points belong to. The criterion for the cross-the-top of parabola and the processing technique are given.An analysis of the approximationaccuracy has led to the relationship between it and the feedrate and the corresponding formu-la for feedrate selection. The correctness of this algorithm has been proved by simulation andindustrial tests.Its advantages are shown in a comparison with other interpolation algo-rithms. |
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| Keywords: | computer numerical control time-slicing method interpolation accuracy |
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