Recursive variational mode decomposition enhanced by orthogonalization algorithm for accurate structural modal identification
Modal identification is critical for structural condition monitoring. Variational mode
decomposition (VMD) has been widely applied to identify modal parameters and has …
decomposition (VMD) has been widely applied to identify modal parameters and has …
Autoregressive spectrum-guided variational mode decomposition for time-varying modal identification under nonstationary conditions
XJ Yao, TH Yi, CX Qu - Engineering Structures, 2022 - Elsevier
Modal identification is an important research subject in structural health monitoring. It is a
mature subject for modal identification of time-invariant and stationary conditions. Because …
mature subject for modal identification of time-invariant and stationary conditions. Because …
Evaluation of modal properties of high-rise buildings under severe typhoon conditions using correlation function-based modal identification methods
M Sun, Q Li - Journal of Wind Engineering and Industrial …, 2022 - Elsevier
The correlation function-based methods have been widely in the operational modal analysis
of engineering structures. However, the understanding of the advantages and …
of engineering structures. However, the understanding of the advantages and …
Modal identification of high-rise buildings by combined scheme of improved empirical wavelet transform and Hilbert transform techniques
P Wei, Q Li, M Sun, J Huang - Journal of Building Engineering, 2023 - Elsevier
Recently, the empirical wavelet transform technique has attracted much attention due to its
advantage of dealing with non-stationary and nonlinear signals. For empirical wavelet …
advantage of dealing with non-stationary and nonlinear signals. For empirical wavelet …
Automated operational modal analysis based on long‐term records: A case study of Milad Tower structural health monitoring
Structural modal identification is time‐consuming for large‐scale structures with continuous
data recordings and long‐term data collections. This paper proposes an automated three …
data recordings and long‐term data collections. This paper proposes an automated three …
Investigation of time-varying natural frequencies of high-rise buildings under harsh excitations using a high-resolution combined scheme
M Sun, Q Li, Y Li - Journal of Building Engineering, 2022 - Elsevier
High-rise buildings subjected to harsh excitations like typhoons or earthquakes usually
present nonlinear features and exhibit time-varying behavior of structural modal properties …
present nonlinear features and exhibit time-varying behavior of structural modal properties …
Identification of modal parameters from non-stationary responses of high-rise buildings
L Zhi, F Hu, Q Li, Z Hu - Advances in Structural Engineering, 2021 - journals.sagepub.com
A key issue in the control, health monitoring, and condition assessment of civil structures is
the estimation of structural modal parameters based on measured structural responses …
the estimation of structural modal parameters based on measured structural responses …
Refined mathematical models for across-wind loads of rectangular tall buildings with aerodynamic modifications
Y Li, C Li, QS Li, YG Li, FB Chen - International Journal of Structural …, 2021 - World Scientific
This paper aims to systematically study the across-wind loads of rectangular-shaped tall
buildings with aerodynamic modifications and propose refined mathematic models …
buildings with aerodynamic modifications and propose refined mathematic models …
Modal identification technologies for high-rise buildings under non-stationary excitations
For high-rise buildings subjected to typhoon or earthquake actions, the excitations are likely
non-stationary, which inevitably violates the stationary assumption that is generally adopted …
non-stationary, which inevitably violates the stationary assumption that is generally adopted …
Output-Only Modal Identification Based on Auto-regressive Spectrum-Guided Symplectic Geometry Mode Decomposition
P Zhan, X Qin, Q Zhang, Y Sun - Journal of Vibration Engineering & …, 2024 - Springer
Purpose The purpose of this paper is to propose a novel output-only structural modal
identification approach based on an improved symplectic geometry mode decomposition …
identification approach based on an improved symplectic geometry mode decomposition …