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Abstract

This paper, presents a comparison between numerical analysis and field test on a real offshore platform in Bohai Bay, China. This platform is a steel jacket offshore platform with vertical piles. The field testing under wave-induced force and wind force etc. was conducted, in order to obtain the dynamic parameters of the structure, including the frequencies of the jacket platform, as well as the corresponding damping ratios and mode shapes. The natural excitation technology (NexT) combined with eigensystem realization algorithm (ERA) and the peak picking (PP) method in frequency domain are carried out for modal parameter indentification under operational conditions. The three-dimeansional finite element model (FEM) is constructed by ANSYS and analytical modal analysis is performed to generate modal parameters. The analytical results were compared with experimental results. A good agreement was achieved between the finite element and analysis and field test results. It is further demonstrated that the numerical and experimental modal analysis provide a comprehensive study on the dynamic properties of the jacket platform. According to the analysis results, the modal parameters identification under ambient excitation can calibrate finite element model of the jacket platform structures, or can be used for the structural health monitoring system.

참고문헌 (12)

  1. Aktan, E., Beck, J. and Cornwell, P. (1999). 'The State of the Art in Structural Identification of Constructed Facilities', Report by the ASCE Committee on Structural Identification of Constructed Facilities 
  2. Farrar, C.R., Doebling, S.W., Cornwell, P.J. and Straser, E.G (1997). 'Variability of Modal Parameters Measured on the Alamosa Canyon Bridge', The 15th International Modal Analysis Conference, Orlando 
  3. Hoon, S., Farrar, C.R., Hemez, F.M., Shunk, D.D., Stinemates, D.W. and Nadler, B.R. (2003). A Review of Structural Health Monitoring Literature; 1996 - 2001, Los Alamos National Laboratory, Los Alamos 
  4. Huang, W.P., Jiang, J.T. and Li, H.J. (2002). 'Measurement of Excessive Vibration of a Jacket Platform'. Proc, of International Symposium on Safety Science and Technology, ISSST, Tai'an, China, Vol 3, pp 502-506 
  5. Li, H.J. and Yang, H.Z. (2004). 'Research Progress on Modal Parameter Identification and Damage Diagnosis for Offshore Platform Structures', Engineering Mechanics, Vol 21, pp 116-138 
  6. James III, G.H., Came, T.G. and Lauffer, J.P. (1993). 'The Natural Excitation Technique (NExT) for Modal Parameter Extraction from Operating Wind Turbines,' SAND92-1666, UC-261, Sandia National Laboratories 
  7. Juang, J.N. and Pappa, R.S. (1985). 'An Eigensystem Realization Algorithm for Modal Parameter Identification and Model Reduction', Journal of Guidance, Control and Dynamics, Vol 8, No 5, pp 620-627 
  8. Juang, J.N. and Pappa, R.S. (1986). 'Effects of Noise on Modal Parameters Identified by the Eigensystem Realization Algorithm', Journal of Guidance, Control, and Dynamics, Vol 9, No 3, pp 294-303 
  9. Peeters, B. and De Roeck, G. (1999). 'Reference Based Stochastic Subspace Identification in Civil Engineering', Proc. of the 2nd International Conference on Identification in Engineering System Swansea, pp 639-648 
  10. Peterson, L.D. (1992). 'Efficient Computation of the Eigensystem Realization Algorithm', Proc. of the 10th International Modal Analysis Conference, San Diego, CA, pp 1122-1131 
  11. Pappa, R.S, Elliott, K.B. and Schenk, B. (1993). 'A Consistent-Mode Indicator for the Eigensystem Realization Algorithm', Journal of Guidance, Control and Dynamics, Vol 16, No 5, pp 852-858 
  12. Yang, H.Z. and Li, H.J. (2003). 'Damage Localization of Offshore Platform under Ambient Excitation', China Ocean Engineering, Vol 17, No 4, pp 307-316 

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