| 高低频两级驱动加工的数据处理方法研究 |
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| 引用本文： | 巩常兰,潘尚峰. 高低频两级驱动加工的数据处理方法研究[J]. 机械设计与制造, 2009, 0(8) |
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| 作者姓名： | 巩常兰 潘尚峰 |
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| 作者单位： | 清华大学精密仪器与机械学系,北京,100084;清华大学精密仪器与机械学系,北京,100084 |
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| 摘 要： | 在对复杂非圆型面零件加工的运动特性分析的基础上,阐述了高低频两级驱动用于非圆加工的优越性,同时以典型非圆零件492Q型活塞为例.对比两种用于加工数据高低频分解的方法:最小二乘拟合法和离散傅立叶变换法,根据仿真结果得出:两种方法的分解精度相差不大,而离散傅立叶变换法简单可靠,更具通用性.
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| 关 键 词： | 非圆型面零件 高低频两级驱动 最小二乘拟合法 离散傅立叶变换法 |
Research on data processing methods of high-low frequency dual actuator machining |
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| GONG Chang-lan,PAN Shang-feng. Research on data processing methods of high-low frequency dual actuator machining[J]. Machinery Design & Manufacture, 2009, 0(8) |
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| Authors: | GONG Chang-lan PAN Shang-feng |
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| Affiliation: | Department of Precision Instruments & Mechanology;Tsinghua University;Beijing 100084;China |
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| Abstract: | Based on the analysis of dynamic characteristics of complex non-circular parts machining,the advantage of high-low frequency dual actuator is clarified.Then we take typical non-circular part piston-492Q as an example to compare two data processing methods:least-square method and DFT method for the split of machining data.The simulation results prove that the split-precision of the two methods is more or less the same,but DFT method is much more simple and reliable,and could be utilized more generally. |
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| Keywords: | Non-circular section parts High-low frequency dual driver Least-square method DFT Method |
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