| 基于遗传算法的相切圆弧逼近非圆曲线算法 |
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| 引用本文： | 蔡慧林,戴建强.基于遗传算法的相切圆弧逼近非圆曲线算法[J].兰州铁道学院学报,2007,26(6):5-8. |
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| 作者姓名： | 蔡慧林 戴建强 |
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| 作者单位： | 兰州交通大学,机电工程学院,甘肃,兰州,730070;兰州交通大学,机电工程学院,甘肃,兰州,730070 |
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| 基金项目： | 兰州市院地院企科技合作项目 |
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| 摘 要： | 利用数控机床对非圆曲线进行加工时,采用直线段或相交圆弧对曲线进行拟合加工,在节点处存在尖点,影响轮廓的光滑性,且利用直线段拟合非圆曲线生成的程序段数多,影响编程效率.用极坐标表示圆弧,便于对相切圆弧的参数进行处理,减少计算量,将遗传算法用于相切圆弧逼近非圆轮廓曲线节点计算优化,利用其自适应迭代寻优的概率算法对圆弧段参数进行优化,并给出了具体算例证明该算法的有效性.
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| 关 键 词： | 数控加工 非圆曲线 节点计算 遗传算法 优化 |
| 文章编号： | 1001-4373（2007）06-0005-04 |
| 收稿时间： | 2007-07-23 |
| 修稿时间： | 2007年7月23日 |
Calculation of Tangent-arc Under Polar Coordinates Approaching Non-circle Curve on GA |
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| Cai Huilin,Dai Jianqiang.Calculation of Tangent-arc Under Polar Coordinates Approaching Non-circle Curve on GA[J].Journal of Lanzhou Railway University,2007,26(6):5-8. |
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| Authors: | Cai Huilin Dai Jianqiang |
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| Abstract: | The lubricity of outline of work-piece is influenced by adopting beeline or intersect-arc approaching the non-circle curve on NC tool because of the tine at node,and the efficiency of programming is influenced by too many sections of program created through adopting beeline approaching the non-circle curve of work-piece.To figure the arc by polar coordinates is easy to dispose of the parameter of arc and reduces the content of counting,and then the global optimal solution of node calculation is achieved.An example for the algorithm is also presented to certify its feasibility. |
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| Keywords: | CNC machining non-circle curve node calculation genetic algorithm(GA) optimization |
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