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哈尔滨工业大学, 自动化测试与控制系,黑龙江 哈尔滨,150001
收稿日期:2002-01-14,
修回日期:2002-05-20,
网络出版日期:2002-08-15,
纸质出版日期:2002-08-15
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崔长彩, 车仁生, 叶东, 黄庆成. 基于遗传算法的球度误差评定[J]. 光学精密工程, 2002,(4): 333-339
CUI Chang-cai, CHE Ren-sheng, YE Dong, HUANG Qing-cheng. Sphericity error evaluation using the genetic algorithm[J]. Editorial Office of Optics and Precision Engineering, 2002,(4): 333-339
首先对球度公差评定问题进行了综述.然后根据圆度公差的数学定义
引申提出球度公差最小区域条件下的评定模型
并给出遗传算法的适应度函数.随后给出算法实现中的中的关键问题.最后用实例对算法进行了检验
计算结果表明基于遗传算法的球度误差优化算法不仅符合最小区域的条件
而且易于理解和实现
能够获得全局最优解
保证了高精度、高效率.
To evaluate the form error of a sphere
a novel method based on the genetic algorithm was devised. In the paper
the problem about sphericity error is reviewed firstly. Secondly
the mathematical model of the sphericity error under the condition of minimum zone is derived from the mathematical definition of the circularity
and the fitness function of the algorithm is given as well. Thirdly
the critical such as selecting the initial value
initialing the population
and deciding genetic operators
etc. in the process of the algorithm implementation are described in detail. Finally
the method is verified by the examples in the literatures 1 and 2. The theoretical analysis and computation results indicate that the designed method not only conforms to the minimum zone condition but also assures a global solution
and is easily implemented. It is accurate and efficient in solving the problem of dimensional and tolerance evaluation.
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