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Abstract
Vibration testing is a crucial approach for identifying modal properties of a structure, e.g. natural frequencies, mode shapes and damping ratios. Based on these model properties, optimization methods can be employed to detect, locate damage and assess the status of structures. These are important goals of Structural Health Monitoring (SHM) in formulating nondestructive assessment tools. The paper focuses on system identification of a simply supported steel I-beam and its modal parameters, under forced excitation. Therefore, output-only system identification methods for instance: nonparametric PSD+ estimation, data-driven and covariance-driven stochastic subspace identification, will be introduced in the paper. Then modal analysis techniques using peak picking and stabilization diagram, are applied. Moreover, measurement results are verified with those obtained from Finite Element (FE) model using ANSYS. The discrepancy of outcomes with regard to eigenfrequencies, mode shapes between measurements and simulations is compared and interpreted.

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MLA
Ho, Viet Long, et al. “System Identification Based on Vibration Testing of a Steel I-Beam.” Proceedings of the 1st International Conference on Numerical Modelling in Engineering, vol. 20, Springer, 2019, pp. 254–68, doi:10.1007/978-981-13-2405-5_21.
APA
Ho, V. L., Tran, N. H., De Roeck, G., Bui, T. T., & Abdel Wahab, M. (2019). System identification based on vibration testing of a steel I-beam. Proceedings of the 1st International Conference on Numerical Modelling in Engineering, 20, 254–268. https://doi.org/10.1007/978-981-13-2405-5_21
Chicago author-date
Ho, Viet Long, Ngoc Hoa Tran, Guido De Roeck, Tien Thanh Bui, and Magd Abdel Wahab. 2019. “System Identification Based on Vibration Testing of a Steel I-Beam.” In Proceedings of the 1st International Conference on Numerical Modelling in Engineering, 20:254–68. Singapore: Springer. https://doi.org/10.1007/978-981-13-2405-5_21.
Chicago author-date (all authors)
Ho, Viet Long, Ngoc Hoa Tran, Guido De Roeck, Tien Thanh Bui, and Magd Abdel Wahab. 2019. “System Identification Based on Vibration Testing of a Steel I-Beam.” In Proceedings of the 1st International Conference on Numerical Modelling in Engineering, 20:254–268. Singapore: Springer. doi:10.1007/978-981-13-2405-5_21.
Vancouver
1.
Ho VL, Tran NH, De Roeck G, Bui TT, Abdel Wahab M. System identification based on vibration testing of a steel I-beam. In: Proceedings of the 1st International Conference on Numerical Modelling in Engineering. Singapore: Springer; 2019. p. 254–68.
IEEE
[1]
V. L. Ho, N. H. Tran, G. De Roeck, T. T. Bui, and M. Abdel Wahab, “System identification based on vibration testing of a steel I-beam,” in Proceedings of the 1st International Conference on Numerical Modelling in Engineering, Ghent, Belgium, 2019, vol. 20, pp. 254–268.
@inproceedings{8573407,
  abstract     = {{Vibration testing is a crucial approach for identifying modal properties of a structure, e.g. natural frequencies, mode shapes and damping ratios. Based on these model properties, optimization methods can be employed to detect, locate damage and assess the status of structures. These are important goals of Structural Health Monitoring (SHM) in formulating nondestructive assessment tools. The paper focuses on system identification of a simply supported steel I-beam and its modal parameters, under forced excitation. Therefore, output-only system identification methods for instance: nonparametric PSD+ estimation, data-driven and covariance-driven stochastic subspace identification, will be introduced in the paper. Then modal analysis techniques using peak picking and stabilization diagram, are applied. Moreover, measurement results are verified with those obtained from Finite Element (FE) model using ANSYS. The discrepancy of outcomes with regard to eigenfrequencies, mode shapes between measurements and simulations is compared and interpreted.}},
  author       = {{Ho, Viet Long and Tran, Ngoc Hoa and De Roeck, Guido and Bui, Tien Thanh and Abdel Wahab, Magd}},
  booktitle    = {{Proceedings of the 1st International Conference on Numerical Modelling in Engineering}},
  isbn         = {{9789811324048}},
  issn         = {{2366-2557}},
  language     = {{eng}},
  location     = {{Ghent, Belgium}},
  pages        = {{254--268}},
  publisher    = {{Springer}},
  title        = {{System identification based on vibration testing of a steel I-beam}},
  url          = {{http://dx.doi.org/10.1007/978-981-13-2405-5_21}},
  volume       = {{20}},
  year         = {{2019}},
}

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