| 自由曲线轮廓度误差评定及其可视化 |
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| 引用本文： | 苏娜,郭慧.自由曲线轮廓度误差评定及其可视化[J].东华大学学报(自然科学版),2010,36(4). |
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| 作者姓名： | 苏娜 郭慧 |
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| 作者单位： | 华东理工大学,机械与动力工程学院,上海,200237 |
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| 摘 要： | 针对曲线轮廓度误差评定存在的问题,提出对设计点插值反算出轮廓的三次非均匀有理B样条(NURBS)理想曲线的方法,建立自由曲线轮廓度误差计算的数学模型.应用微粒群优化算法(Particle SwarmOptimization,PSO)计算测量点到理想曲线的最短距离,准确评定曲线轮廓度的误差.采用Matlab软件实现自由曲线轮廓度误差评定的可视化,使得被测量的几何特征更加直观.实验结果表明,所用方法计算速度快、所得结果精度高.
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| 关 键 词： | 误差评定 轮廓度 NURBS 曲线 微粒群算法 可视化 |
The Profile Error Evaluation and Visualization of Free-Form Curve |
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| SU Na,GUO Hui.The Profile Error Evaluation and Visualization of Free-Form Curve[J].Journal of Donghua University,2010,36(4). |
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| Authors: | SU Na GUO Hui |
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| Institution: | SU Na,GUO Hui(School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China) |
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| Abstract: | Theoretical curve was built by interpolating design points at the method of cubic Non-Uniform Rational B-Spline(NURBS) to solve the problem of evaluating profile error of curve.The mathematical model was built to compute the error.The particle swarm optimization(PSO) was applied for computing the minimum distance from measure points to design curve,which can accurately evaluate profile error of curve.Matlab software was used to implement visualization of profile error evaluation of free-form curve,making ge... |
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| Keywords: | error evaluation profile tolerance NURBS curve particle swarm algorithm visualization |
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