Experimental Verification of Modal Identification of a High-rise Building Using Independent Component Analysis

Hwang, Jae‐Seung; Noh, Jungtae; Lee, Sang‐Hyun; Kareem, Ahsan

doi:10.1186/s40069-018-0319-7

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…Along with it: -in [8], it was proposed, on the basis of a reliable mathematical model ICA, to efficiently calculate the eigenfrequency and damping coefficient of oscillations using the probability distribution function of eigenfrequency; -a frequency-based optimization method to find design variables such as mass, period and damping coefficient of the tuned mass damper on the top of the structure was presented in [9]; -in [10] the reduction of wind vibrations of a flexible structure with low internal damping was considered. Optimal mechanical properties of a damper with a mass to damp vibrations of high-rise buildings were investigated; -a new multidimensional device for isolation and mitigation of earthquake consequences was developed and tested in [11].…”

Section: Introductionmentioning

confidence: 99%

Damping of high-rise structure vibrations with viscoelastic dynamic dampers

et al. 2020

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The paper is devoted to the study of dissipative properties of inhomogeneous viscoelastic systems of structures with dynamic vibration dampers. A detailed analysis of well-known studies concerning this problem is given. A mathematical model, technique and algorithm for studying the dissipative properties of inhomogeneous viscoelastic systems of high-rise buildings with dynamic vibration dampers are developed in the paper, taking into account the real geometry of structures. The hereditary BoltzmannVolterra theory was used to describe the viscoelastic properties of the damper and springs material. To solve the problem, the finite element method and the Muller method were used. The natural vibration modes of the Novo-Angren TPP smokestack with dynamic vibration dampers were investigated for various damper parameters. The imaginary part of complex eigenfrequency of the system was used as a dissipative index. A number of new mechanical effects were identified. The developed technique can be used to optimize the parameters of a viscoelastic damper for a structure.

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Section: Introductionmentioning

confidence: 99%