| 基于回归分析的激光熔覆几何特征模型修正 |
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| 引用本文： | 田威,廖文和,许波,曾超. 基于回归分析的激光熔覆几何特征模型修正[J]. 材料热处理学报, 2012, 33(Z1): 110-114 |
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| 作者姓名： | 田威 廖文和 许波 曾超 |
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| 作者单位： | 1. 南京航空航天大学机电学院,江苏南京,210016
2. 南京航空航天大学机电学院,江苏南京210016;南京理工大学,江苏南京210094 |
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| 基金项目： | 国家自然科学基金(51105205) |
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| 摘 要： | 通过理论方法建立的激光熔覆几何特征模型,由于理想化假设不能客观反映实际工艺过程,导致模型的预测精度较低.为了提高模型精度,对基于试验回归分析的模型修正方法进行研究.通过分析理论模型主要参数的实际变化规律,提出通过试验回归分析方法来修正激光熔覆几何特征模型,并对修正模型的显著性和失拟性进行了检验,模型的拟合效果和回归效果都较高,试验验证结果表明,修正后的模型预测精度得到了大幅度的提高.
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| 关 键 词： | 激光熔覆 几何特征 试验回归分析 模型修正 |
Revision of geometrical feature model of laser cladding based on regressive analyses |
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| TIAN Wei,LIAO Wen-he,XU Bo,ZENG Chao. Revision of geometrical feature model of laser cladding based on regressive analyses[J]. Transactions of Materials and Heat Treatment, 2012, 33(Z1): 110-114 |
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| Authors: | TIAN Wei LIAO Wen-he XU Bo ZENG Chao |
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| Affiliation: | 1(1.School of Mechanical and Electrical Engineering;Nanjing University of Aeronautics and Astronautics, Nanjing 210016,China;2.Nanjing University of Science and Technology,Nanjing 210094,China) |
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| Abstract: | The accuracy of geometrical feature of laser cladding theoretical model is lower due to not objective assumptions.In order to improve the accuracy of the model,the model is updated of the geometrical feature of laser cladding based on regressive analyses.Then the actual variation of main model parameters is analyzed,and revision method is brought up based on regressive analyses.Also the significance and lose fitting characteristics are test.The test results show that the fitting effectiveness and regression effectiveness are good.Experiment results show that the accuracy of the revision model is greatly improved. |
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| Keywords: | laser cladding geometrical feature regressive analyses model revision |
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