An automatic frequency domain modal parameter estimation algorithm

2003 ◽  
Vol 265 (3) ◽  
pp. 647-661 ◽  
Author(s):  
S Vanlanduit ◽  
P Verboven ◽  
P Guillaume ◽  
J Schoukens
Keyword(s):  
Parameter Estimation ◽  
Frequency Domain ◽  
Estimation Algorithm ◽  
Automatic Frequency ◽  
Modal Parameter ◽  
Parameter Estimation Algorithm ◽  
Modal Parameter Estimation

Application of a generalized residual model to frequency domain modal parameter estimation

2003 ◽  
Vol 262 (3) ◽  
pp. 677-705 ◽  
Author(s):  
William A. Fladung ◽  
Allyn W. Phillips ◽  
Randall J. Allemang
Keyword(s):  
Parameter Estimation ◽  
Frequency Domain ◽  
Modal Parameter ◽  
Modal Parameter Estimation

scholarly journals Operational Modal Identification of Time-Varying Structures via a Vector Multistage Recursive Approach in Hybrid Time and Frequency Domain

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Si-Da Zhou ◽  
Li Liu ◽  
Wu Yang ◽  
Zhi-Sai Ma
Keyword(s):  
Parameter Estimation ◽  
Frequency Domain ◽  
Real Time ◽  
Time Estimation ◽  
Recursive Estimation ◽  
Modal Parameters ◽  
Time Varying ◽  
Modal Parameter ◽  
Structural Dynamic ◽  
Modal Parameter Estimation

Real-time estimation of modal parameters of time-varying structures can conduct an obvious contribution to some specific applications in structural dynamic area, such as health monitoring, damage detection, and vibration control; the recursive algorithm of modal parameter estimation supplies one of fundamentals for acquiring modal parameters in real-time. This paper presents a vector multistage recursive method of modal parameter estimation for time-varying structures in hybrid time and frequency domain, including stages of recursive estimation of time-dependent power spectra, frozen-time modal parameter estimation, recursive modal validation, and continuous-time estimation of modal parameters. An experimental example validates the proposed method finally.

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