摘要
通过对精车和磨削加工不锈钢表面的粗糙度测量，发现它们的轮廓功率谱在其谱区内均服从两种不同的幂定律。本文对这种双分形表面提出了一种新的表征方法，并给出了分形参数的计算公式。实验表明，加工方法越精细，其边界频率越高。
Roughness measurement on finish turned and ground stainless steel surfaces have shown that the power spectrum of each of these surfaces follows two different power laws within their spectra regions. For such bifractal surfaces this paper presents a new method of roughness characterization and calculation formulas of fractal parameters. Experiments show that the corner frequency ω c and the length scale of surfaces vary with the processing technique.
出处
《计量学报》
CSCD
1996年第4期246-250,共5页
Acta Metrologica Sinica
基金
国家自然科学基金
关键词
粗糙度
测量
双分形表面
Roughness
Fractal dimension
Measurement
