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압력용기용 부식 배관의 시간-주파수 해석에 의한 비파괴적 특성 평가
남기우(K. W. Nam),김진욱(J. W. Kim),안석환(S. H. Ahn),박인덕(I. D Park),이수식(S. S. Lee),박소순(S. S. Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
In this study, the pressure vessel piping with corrosion used during long term were investigated from the time-frequency analysis method. The damage of piping could be evaluated the attenuation factor by ultrasonic parameters such as center frequency and echo waveform. Based on NDE analysis by time-frequency analysis method, it should also be possible to evaluate from various damages and defects in piping members.