지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.19 No.5
- 발행연도
- 2017.1
- 수록면
- 499 - 512 (14page)
이용수
초록· 키워드
오류제보하기
Traditional structural dynamic analysis and Structural Health Monitoring (SHM) of large scale concrete civil structures rely on manufactured embedding transducers to obtain structural dynamic properties. However, the embedding of manufactured transducers is very expensive and low efficiency for signal acquisition. In dynamic structural analysis and SHM areas, piezoelectric transducers are more and more popular due to the advantages like quick response, low cost and adaptability to different sizes. In this paper, the applicable feasibility assessment of the designed \"artificial\" piezoelectric transducers called Concrete Piezoelectric Smart Module (CPSM) in dynamic structural analysis is performed via three major experiments. Experimental Modal Analysis (EMA) based on Ibrahim Time Domain (ITD) Method is applied to experimentally extract modal parameters. Numerical modal analysis by finite element method (FEM) modeling is also performed for comparison. First ten order modal parameters are identified by EMA using CPSMs, PCBs and FEM modeling. Comparisons are made between CPSMs and PCBs, between FEM and CPSMs extracted modal parameters. Results show that Power Spectral Density by CPSMs and PCBs are similar, CPSMs acquired signal amplitudes can be used to predict concrete compressive strength. Modal parameter (natural frequencies) identified from CPSMs acquired signal and PCBs acquired signal are different in a very small range (~3%), and extracted natural frequencies from CPSMs acquired signal and FEM results are in an allowable small range (~5%) as well. Therefore, CPSMs are applicable for signal acquisition of dynamic responses and can be used in dynamic modal analysis, structural health monitoring and related areas.
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등록된 정보가 없습니다.
참고문헌 (36)
참고문헌 신청
Aktan, A. E. / 1998 / Issues in health monitoring for intelligent infrastructure / Smart Mater. Struct 7(5):674
Achenbach, J. / 2012 / Wave Propagation in Elastic Solids (Vol. 16) / Elsevier
Bahei-El-Din, Y. A. / 2003 / Electro-mechanical impedance technique for health monitoring of concrete structures / J. Eng. Appl. Sci. Cairo 50(6):1111~1124
Bernard, O. / 2003 / A multiscale micromechanics-hydration model for the early-age elastic properties of cement-based materials / Cement Concrete Res 33(9):1293~1309
Brigham, E. O. / 1974 / The fast Fourier transform (Vol. 7) / Prentice-Hall
Achenbach, J. / 2012 / Wave Propagation in Elastic Solids (Vol. 16) / Elsevier
Bahei-El-Din, Y. A. / 2003 / Electro-mechanical impedance technique for health monitoring of concrete structures / J. Eng. Appl. Sci. Cairo 50(6):1111~1124
Bernard, O. / 2003 / A multiscale micromechanics-hydration model for the early-age elastic properties of cement-based materials / Cement Concrete Res 33(9):1293~1309
Brigham, E. O. / 1974 / The fast Fourier transform (Vol. 7) / Prentice-Hall
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