| 数控加工仿真中精度验证技术的研究 |
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| 引用本文： | 张臣,周来水,余湛悦,周儒荣.数控加工仿真中精度验证技术的研究[J].中国机械工程,2005,16(1):36-41. |
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| 作者姓名： | 张臣 周来水 余湛悦 周儒荣 |
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| 作者单位： | 南京航空航天大学,南京,210016 |
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| 基金项目： | 国家重点科技攻关项目(96-A01-01-05)，江苏省重大科技攻关项目(G98017-3)，江苏省青年科技基金资助项目(BQ200004)，教育部高等学校优秀青年教师教学科研奖励计划资助项目 |
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| 摘 要： | 分析了数控加工仿真精度验证方法,提出扩展Z&N精度验证方法,以两重过滤的形式表示精度验证过程。通过过滤器1滤除使用Z&N法就可以满足验证精度要求的点,对通过的点进行进一步的误差计算,从而提高精度验证效果;过滤器2以区位编码的形式滤除用于精度验证的设计模型三角片集合中的无效三角片,提高验证误差计算效率。将验证效果与国外商用系统进行了对比,说明了算法的应用效果。
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| 关 键 词： | 精度验证 扩展Z＆N法 两重过滤 区位编码 |
| 文章编号： | 1004-132X(2005)01-0036-06 |
Research on Verification Algorithm of NC Machining Simulation |
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| Zhang Chen Zhou Laishui Yu Zhanyue Zhou Rurong Nanjing University of Aeronautics and Astronautics,Nanjing.Research on Verification Algorithm of NC Machining Simulation[J].China Mechanical Engineering,2005,16(1):36-41. |
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| Authors: | Zhang Chen Zhou Laishui Yu Zhanyue Zhou Rurong Nanjing University of Aeronautics and Astronautics Nanjing |
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| Affiliation: | Zhang Chen Zhou Laishui Yu Zhanyue Zhou Rurong Nanjing University of Aeronautics and Astronautics,Nanjing,210016 |
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| Abstract: | The verification algorithm of NC machining was analyzed and a extended Z&N verification algorithm was presented to denote the verification process in twofold filter. The filter one sifted those points which were within the range of required precision through traditional Z&N verification algorithm .The errors of points which pass the filter one were calculated further. The filter two sifted the invalid triangles of the verification sets of triangles in form of region coding to improve computation efficiency. Comparisons with foreign commercial software systems show the application effecttiveness of the presented algorithm. |
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| Keywords: | NC machining verification extended Z&N method twofold filter region code |
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