http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Wavelet 변환에 의한 숫돌로딩 진단과 노이즈 제거
양재용,하만경,곽재섭,박후명,이상진,Yang, J.Y.,Ha, M.K.,Kwak, J.S.,Park, H.M.,Lee, S.J. 한국기계가공학회 2002 한국기계가공학회지 Vol.1 No.1
The wavelet transform is a popular tool for studying intermittent and localized phenomena in signals. In this study the wavelet transform of cutting force signals was conducted for the diagnosis of grinding conditions in grinding process. We used the Daubechies wavelet analyzing function to detect a sudden change in cutting signal level. STD11 workpiece was 85 times of machined pieces cut by the WA wheel and a tool dynamometer obtained cutting force signals. From the results of the wavelet transform, the obtained signals were divided into approximation terms and detailed terms. At dressing time, the approximation signals were slowly increased and 45 machined times noticed dressing time.