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In this paper, the SSI-DATA technique is used to extract modal information from wide-area measurements.
In this paper, a fast Bayesian methodology is presented for structural model updating utilizing modal information from multiple setups.
Here, BSS techniques were used to recover source signals, and transmissibility-based methods were applied to estimate modal information from the recovered source signals.
In this paper, a procedure is outlined for obtaining modal information from total acceleration measurements for the case of base excitation using current software capabilities.
Afterwards, the recovered time-domain modal responses were further processed using the poly-reference least square complex frequency domain (PLSCF) technique to accurately estimate modal information from the recovered source signals.
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From the modal information extracted from two specimens with different geometries, the procedure allows the simultaneous estimation of the skin and core constitutive parameters through adequate objective functions measuring the discrepancy between the experimental data and the numerical predictions.
The brake system model is based on the modal information extracted from finite element models for individual brake components.
Figures 1 d) and 1 e) indicate the modal information of frequency and damping ratio parameters revealed from the peak correlation at each time.
The static configuration and the modal information are validated with experimental data and compared to results obtained from nonlinear finite-element analysis software.
No modal information is required in the modal force compensator.
Only ground response spectra (GRS) and basic modal information of primary structures, including natural frequencies, modal damping, participation factors, and mode shapes, which can be readily obtained from a modal analysis, are needed.
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