Journal ArticleDOI
Reduction seismic response with heavily-damped vibration absorbers
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In this article, it is shown that the attachment of a small heavily-damped system in resonance can increase the damping of a building and reduce thus its response to earthquake excitations.Abstract:
It is shown that two of the damping ratios of certain systems composed of a building and a small attachment in resonance are given by the average of the damping ratios of the two independent components. Based on this fact and the fact that the seismic response of a building can always be reduced by increasing its damping, it is demonstrated that the attachment of a small heavily-damped system in resonance can increase the damping of a building and reduce thus its response to earthquake excitations. Numerical solutions are presented to confirm the demonstration, and recommendations are given to calculate the parameters of such systems.read more
Citations
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Journal ArticleDOI
A method of estimating the parameters of tuned mass dampers for seismic applications
TL;DR: In this article, the optimum parameters of tuned mass dampers (TMD) that result in considerable reduction in the response of structures to seismic loading are presented, and the method can also be used in vibration control of tall buildings using the so-called "mega-substructure configuration" where substructures serve as vibration absorbers for the main structure.
Journal ArticleDOI
Passive, Adaptive and Active Tuned Vibration Absorbers—A Survey
TL;DR: An overview of the recent development of tuned vibration absorbers (TVAs) for vibration and noise suppression is presented in this paper, which summarizes some popular theory for analysis and optimal tuning of these devices, discusses various design configurations, and presents some contemporary applications of passive TVAs.
Journal ArticleDOI
Research developments in vibration control of structures using passive tuned mass dampers
Said Elias,Vasant Matsagar +1 more
TL;DR: The review clearly demonstrates that the TMDs have a potential for improving the wind and seismic behaviors of prototype civil structures and shows that the MTMDs and d-MTMDs are relatively more effective and robust, as reported.
Journal ArticleDOI
Optimum Design of Absorber for MDOF Structures
TL;DR: In this article, the authors discussed the optimum design of tuned mass damper (TMD) for seismically excited building structures, where multi degree of freedom structures were considered so that it makes improvement to the available design procedures so far, where usually only single mode model is considered.
Journal ArticleDOI
Estimating optimum parameters of tuned mass dampers using harmony search
TL;DR: In this article, the optimum parameters of tuned mass dampers (TMD) are proposed under seismic excitations, and a Matlab program is developed for numerical optimization and time domain simulation.
References
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Journal ArticleDOI
Tuned Mass Dampers for Buildings
TL;DR: Tuned mass dampers attached to single degree-of-freedom systems representing tall buildings are studied in this paper, where system equations are formulated and solved for various input forcing functions, and the parameters of the damper are varied to study the response reduction.
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Seismic Effectiveness of Tuned Mass Dampers
TL;DR: In this article, a probabilistic model is developed that gives the distribution of peak response of buildings modified by adding a tuned mass damper in terms of the same distribution for the unmodified structures.
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Effect of Tuned-Mass Dampers on Seismic Response
TL;DR: In this paper, a high-rise building was designed and modeled using linear elastic (and also nonlinear) degrading stiffness idealizations, and three different techniques were used to design an optimum tuned-mass damper (TMD) for the prototype.
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Optimal Tuned Mass Dampers for Buildings
TL;DR: In this article, the authors presented approximate formulas for the design of a TMD system for most buildings, the accuracy obtained from the closed form expressions is adequate for preliminary design and showed that the effective damping of a building with TMD is smaller than predicted by a model that represents the building by its first mode only.
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Minimal structural response under random excitation using the vibration absorber
TL;DR: In this paper, the first mode response of a linear multistorey structure with a linear vibration absorber attached to the roof is derived and the smallest possible values of the variance of the response along with corresponding absorber parameters are established using an optimization program.