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A Study on Propagation of Guided Waves in a Steam Generator Tube  

송성진 (성균관대학교 기계공학부)
박준수 (성균관대학교 기계공학)
김재희 (원자력연구소 종합안전평가)
김준영 (현대자동)
김영환 (성균관대학교 기계공학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.23, no.5, 2004 , pp. 353-361 More about this Journal
Abstract
Propagation of the guided waves in a steam generator (SG) tube was investigated. Dispersion curves and the incident angles corresponding to the specific modes were calculated for the SG tube. The modes of guided wave were identified by time-frequency diagrams obtained by short time Fourier transform. Group velocities were also determined from the time-frequency diagrams obtained at the different separations of transducers. In experiment. distinct mode conversion was not observed when the guided ultrasound passed curved region of the S/G tube. The optimum mode of guided wave for the inspection of SG tube was suggested and verified by experiments.
Keywords
steam generator tube; ultrasonic guided waves; dispersion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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