| 碳纤维复合材料表面形貌测量中频谱法的应用 |
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| 引用本文： | 王渊,何维军,赵福令.碳纤维复合材料表面形貌测量中频谱法的应用[J].航空精密制造技术,2009,45(2). |
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| 作者姓名： | 王渊 何维军 赵福令 |
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| 作者单位： | 大连理工大学,精密与特种加工教育部重点试验室,大连,116024 |
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| 摘 要： | 针对现实中用户依据自身经验选择采样条件的不确定性,提出了一种能够客观判定最佳采样条件的方法.基于二维功率频谱分析,考虑奈奎斯特采样定理与混叠效应,提出一个归一近似因子来确定合适采样条件.经实验验证其适用于碳纤维复合材料表面形貌测量,研究证明用较大采样间距多次测量加工后工件的表面形貌,取粗糙度值的平均值或最大值来评定其表面质量更合理.
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| 关 键 词： | 二维频谱分析 采样条件 碳纤维复合材料 表面形貌 |
Application of Spectral Analysis in Measurement of Carbon Fibre Composite Surface Topography |
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| WANG Yuan,HE Wei-jun,ZHAO Fu-ling.Application of Spectral Analysis in Measurement of Carbon Fibre Composite Surface Topography[J].Aviation Precision Manufacturing Technology,2009,45(2). |
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| Authors: | WANG Yuan HE Wei-jun ZHAO Fu-ling |
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| Institution: | Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education;Dalian University of Technology;Dalian 116024 |
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| Abstract: | Aiming at the uncertainty of selecting sample conditions depending on user's own experience in reality,one method that can determine appropriate sample conditions objectively is developed.Based on 2D spectral analysis and considering the Nyquist sampling theorem and aliasing effect,a normalized proximity factor is proposed to determine proper sample conditions.Experiments validate that it applies for the measurement of surface of carbon fibre composites.The results indicate that it is more reasonable to mea... |
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| Keywords: | 2D spectral analysis sample conditions carbon fibre composite surface topography |
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