| 引用本文: | 胡皓,彭小强,戴一帆,等.磁流变抛光螺旋扫描方式的算法与实现.[J].国防科技大学学报,2009,31(4):5-9.[点击复制] |
| HU Hao,PENG Xiaoqiang,DAI Yifan,et al.Algorithm and Implementation of Magnetorheological Finishing with Spiral Scan Mode[J].Journal of National University of Defense Technology,2009,31(4):5-9[点击复制] |
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| 磁流变抛光螺旋扫描方式的算法与实现 |
| 胡皓, 彭小强, 戴一帆, 石峰 |
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(国防科技大学 机电工程与自动化学院，湖南 长沙 410073)
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| 摘要: |
| 研究基于螺旋扫描路径的光学镜面磁流变抛光的算法与实现。该算法将去除函数矩阵转化成驻留时间解算的线性方程组的系数矩阵，并利用其为稀疏矩阵的特点来进行快速迭代计算，然后将求得的驻留时间分配到螺旋扫描路径上以求得整个路径上速度变化，从而控制磁流变抛光机床直线轴和转轴作插补运动。利用该算法在自研的KDMRF-200磁流变抛光机床上对一K9玻璃平面镜进行了两次迭代加工，面形均方根误差由初始的0.128λ加工到0.022λ，验证了该算法的正确性和实用性。 |
| 关键词: 磁流变抛光 驻留时间 螺旋扫描路径 |
| DOI： |
| 投稿日期：2009-05-10 |
| 基金项目:国家自然科学基金资助项目(50775215) |
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| Algorithm and Implementation of Magnetorheological Finishing with Spiral Scan Mode |
| HU Hao, PENG Xiaoqiang, DAI Yifan, SHI Feng |
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(College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The algorithm and implementation of Magnetorheological Finishing with spiral scan mode was researched. The algorithm implemented changes the removal function matrix to the coefficient matrices of the linear system of equations for dwell-time calculation. These equations are resolved quickly because the coefficient matrices are sparse. The variations of speed on the spiral path are obtained by the allocation of the dwell time and the work piece can be processed well using the machine that contains the information about the MRF process. An experiment on a K9 circular plane mirror is made on the KDMRF-200 machine developed by us. The RMS surface error is 0.02λ(λ=632.8nm) through the 2nd iteration. |
| Keywords: magnetorheological finishing dwell time spiral scan path |
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