| 一种区域公差约束的叶片模型配准方法 |
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| 引用本文： | 敬石开,程云勇,张定华,杨海成.一种区域公差约束的叶片模型配准方法[J].计算机集成制造系统,2010,16(4). |
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| 作者姓名： | 敬石开 程云勇 张定华 杨海成 |
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| 作者单位： | 1. 北京航空航天大学机械工程及自动化学院,北京,100191
2. 西北工业大学,现代设计与集成制造技术教育部重点实验室,陕西,西安,710072 |
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| 摘 要： | 针对航空发动机涡轮叶片几何形状检测中的模型配准定位问题,依据叶片型面区域公差设计的特点,提出一种区域公差约束的叶片模型配准方法,尽可能把模型配准控制点集约束在公差带以内。在迭代最近点配准方法的目标函数的基础上,附加区域公差约束条件,建立区域公差约束的叶片模型配准目标函数,并给出了基于遗传算法叶片模型约束配准求解方法。使用叶片的仿真与实测数据进行了模型配准实验,结果表明,所提出的方法能显著减少配准控制点集的超差点数目。
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| 关 键 词： | 涡轮叶片 模型配准 区域公差 遗传算法 计算机辅助设计 |
Tolerance zone constrained alignment method for turbine blade model |
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| JING Shi-kai,CHENG Yun-yong,ZHANG Ding-hua,YANG Hai-cheng.Tolerance zone constrained alignment method for turbine blade model[J].Computer Integrated Manufacturing Systems,2010,16(4). |
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| Authors: | JING Shi-kai CHENG Yun-yong ZHANG Ding-hua YANG Hai-cheng |
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| Affiliation: | 1.School of Mechanical Engineering & Automation/a>;Beihang University/a>;Beijing 100191/a>;China/a>;2.Key Laboratory of Contemporary Design & Integrated Manufacturing Technology of Ministry of Education/a>;Northwestern Polytechnical University/a>;Xi' an 710072/a>;China |
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| Abstract: | To align the measurement data of the investment casting turbine blade and its Computer Aided Design(CAD)model to unify the coordinate system for its geometric shape inspection,a tolerance zone constrained model alignment method was presented.The objective function of the constrained model alignment method was established by combining the tolerance zone constrained conditions and the objective function of the basic iterative closest point algorithm.Methods based on genetic algorithm were adopted to solve the... |
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| Keywords: | turbine blade model alignment tolerance zone genetic algorithm computer aided design |
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