Structural Engineering and Mechanics

  • 제38권3호
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  • Pages.315-332
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  • 2011
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

The combined deterministic stochastic subspace based system identification in buildings

  • 투고 : 2009.11.04
  • 심사 : 2010.12.28
  • 발행 : 2011.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

The Combined Deterministic Stochastic Subspace based System Identification Technique (CDSSSIT) is a powerful input-output system identification technique which is known to be always convergent and numerically stable. The technique determines a Kalman state sequence from the projection of the output-input data. The state space matrices are determied subsequently from this Kalman state sequence using least squares. The objective of this paper is to examine the efficiency of the CDSSSIT in identifying the modal parameters (frequencies and mode shapes) of a stiff structure. The results show that the CDSSSIT predicts the modal parameters of stiff buildings quite accurately but is very sensitive to the location of sensors.

키워드

참고문헌

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피인용 문헌

  1. Instrumentation and system identification of a typical school building in Istanbul vol.43, pp.2, 2012, https://doi.org/10.12989/sem.2012.43.2.179
  2. Structural identification (St-Id) using finite element models for optimum sensor configuration and uncertainty quantification vol.81, 2014, https://doi.org/10.1016/j.finel.2013.10.009
  3. Developing Dynamic Digital Image Correlation Technique to Monitor Structural Damage of Old Buildings under External Excitation vol.2014, 2014, https://doi.org/10.1155/2014/954840
  4. Evaluation of the different genetic algorithm parameters and operators for the finite element model updating problem vol.11, pp.6, 2013, https://doi.org/10.12989/cac.2013.11.6.541
  5. Application of Improved Combined Deterministic-Stochastic Subspace Algorithm in Bridge Modal Parameter Identification vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/8855162