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三维粗糙表面的谱矩特征

Keywords: 表面粗糙度,表面微观形貌,二维谱矩,二维快速傅里叶变换

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Abstract:

提出了分数阶次谱矩的概念,并对三维表面粗糙度的纹理方向性进行了详细研究.通过对几种典型的精密机械加工试件的实验分析,结果表明,用二阶表面谱矩中的分数阶次矩,可以更合理、准确和定量地反映不同加工表面的纹理类型及方向性.

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