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프랙탈 해석을 이용한 표면 미세형상 평가 기법에 관한 연구
조남규,엄계익 한국공작기계학회 1998 한국생산제조학회지 Vol.7 No.5
In this paper, Fractal analysis was applied to evaluate machined surface profile. The spectrum method was used to calculate fractal dimension of generated surface profiles by Weierstrass-Mandelbrot fractal function. To avoid estimation errors by low frequency characteristics of FFT, the Maximum Entropy Method (MEM) was examined. We suggest a new criterion to define the MEM order m. MEM power spectrum with our criterion is proved to be advantageous by the comparison with the experimental results.