지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.8
- 수록면
- 636 - 642 (7page)
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초록· 키워드
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The sensor configuration of the magnetostrictive guided wave system can be described as a single continuous transducing element which makes it difficult to separate the individual modes from the reflected signal. In this work we develop the mode decomposition technique employing chirplet transform, which is able to separate the individual modes from dispersive and multimodal waveform measured with the magnetostrictive sensor, and to estimate the time-frequency centers and individual energies of the reflection, which would be used to locate and characterize defects. The reflection coefficients are calculated using the modal energies of the separated mode. Results from experimental results on a carbon steel pipe are presented, which show that the accurate and quantitative defect characterization could become enabled using the proposed technique.
목차
ABSTRACT
1. 서론
2. 첩릿변환
3. 실험 결과
4. 결론
References
참고문헌 (13)
참고문헌 신청
1. [학술지(정기간행물)] - Alleyne, D. / 1998 / The Reflection of Guided Waves from Circumferential Notches in Pipes / Transaction of ASME, Journal of Applied Mechanics 65 (3) : 635 ~ 641
2. [학술지(정기간행물)] - Demma, A. / 2004 / The Reflection of Guided Waves from Notches in Pipes: a Guide for Interpreting Measurements / NDT & E International 37 (3) : 167 ~ 180
3. [학술지(정기간행물)] - Bai, H. / 2001 / Scattering of Guided Waves by Circumferential Cracks in Steel Pipes / Transaction of ASME, Journal of Applied Mechanics 68 (4) : 619 ~ 631
4. [학술지(정기간행물)] - Carandente, R. / 2012 / The Effect of Complex Defect Profiles on the Reflection of the Fundamental Torsion Mode in Pipes / NDT & E International 46 (3) : 41 ~ 47
5. [학술지(정기간행물)] - 이주경 / 2014 / 평판 구조물의 영상화를 위한 위상 배열 시스템 개발 및 응용 / 한국소음진동공학회논문집 24 (2) : 123 ~ 130
2. [학술지(정기간행물)] - Demma, A. / 2004 / The Reflection of Guided Waves from Notches in Pipes: a Guide for Interpreting Measurements / NDT & E International 37 (3) : 167 ~ 180
3. [학술지(정기간행물)] - Bai, H. / 2001 / Scattering of Guided Waves by Circumferential Cracks in Steel Pipes / Transaction of ASME, Journal of Applied Mechanics 68 (4) : 619 ~ 631
4. [학술지(정기간행물)] - Carandente, R. / 2012 / The Effect of Complex Defect Profiles on the Reflection of the Fundamental Torsion Mode in Pipes / NDT & E International 46 (3) : 41 ~ 47
5. [학술지(정기간행물)] - 이주경 / 2014 / 평판 구조물의 영상화를 위한 위상 배열 시스템 개발 및 응용 / 한국소음진동공학회논문집 24 (2) : 123 ~ 130
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UCI(KEPA) : I410-ECN-0101-2015-530-002472415