DOI QR코드

DOI QR Code

보 구조물에 대한 손상규명기법의 실험적 검증

Experimental Verification of the Structural Damage Identification Method Developed for Beam Structures

  • 조국래 (인하대학교 기계공학과) ;
  • 신진호 (인하대학교 기계공학과) ;
  • 이우식 (인하대학교 기계공학과)
  • 발행 : 2002.12.01

초록

In this paper, an experimental verification has been conducted for the frequency response function (FRF)-based structural damage identification method (SDIM) proposed for beam structures. The FRF-based SDIM requires the natural frequencies and mode shapes measured in the intact state and the FRF-data measured in the damaged state. Experiments are conducted for the cantilevered beam specimens with one slot and with three slots. It is shown that the proposed FRF-based SDIM provides damage identification results that agree quite well with true damage state.

키워드

참고문헌

  1. Salawu, O. S., 1997, 'Detection of Structural Damage througn Changes in Frequency: A review,' Engineering Structure, Vol. 19, No. 9, pp. 718-723 https://doi.org/10.1016/S0141-0296(96)00149-6
  2. Doebling, S. W., Farrar, C. R., and Prime, M. B., 1998, 'A Summary Review of Vibration-based Damage Indentification Method,' The Shock and Vibration Digest, Vol. 30, No. 2, pp. 91-105 https://doi.org/10.1177/058310249803000201
  3. Zou, Y., Tong, L. and Steven, G. P., 2000, 'Vibration-based Model-dependent Damage (delamination) Indentification and Health Monitoring for Composites Structures-A review,' Journal fo Sound and Vibration, Vol. 230, No. 2, pp. 357-378 https://doi.org/10.1006/jsvi.1999.2624
  4. Yeun, M. M. F., 1985, 'A Numerical Study of the Eigenparameters of a Damaged Cantilever,' Journal of Sound and Vibration, Vol. 103, pp. 301-310 https://doi.org/10.1016/0022-460X(85)90423-7
  5. Banks, H. T., Inman, D. J., Leo, D. J. and Wang, Y., 1996, 'An Experimentally Validated Damage Detection Theory in Smart Structures,' Journal of Sound and Vibration, Vol. 191, No. 5, pp. 859-880 https://doi.org/10.1006/jsvi.1996.0160
  6. Luo, H. and Hanagud, S., 1997, 'An Integral Equation for Changes in the Structural Dynamics Chracteristics of Damaged Structures,' International Journal of Solids and Structures, Vol. 34, No. 35/36, pp. 4557-4579 https://doi.org/10.1016/S0020-7683(97)00038-3
  7. Wang, Z., Lin, R. M. and Lim, M. K., 1997, 'Structural Damage Detection Using Measured FRF Data,' Computer Methods in Applied Mechanics and Engineering, Vol. 147, pp. 187-197 https://doi.org/10.1016/S0045-7825(97)00013-3
  8. Lee, U. and Shin, J., 2002, 'An Frequency response function-based Structural Damage Identification Method,' Computers & Structures, Vol. 80, No. 2, pp. 117-132 https://doi.org/10.1016/S0045-7949(01)00170-5
  9. Lee, U., Kim, N. and Kwon, O. Y., 2001, 'Dynamic Characteristics of a Damaged Plate' KSME International Journal, Vol. 15, No. 10, pp. 1408-1416
  10. Meirovitch, L., 1967, 'Analytical Methods in Vibration,' The Macmillan Co., New York