Seismic performance of multiple tuned mass dampers in suppressing multimode responses of building structures

2001 ◽  
Author(s):  
Genda Chen ◽  
Jingning Wu
Keyword(s):  
Seismic Performance ◽  
Building Structures ◽  
Tuned Mass Dampers ◽  
Multiple Tuned Mass Dampers

scholarly journals Optimal design and performance evaluation of tuned mass damper inerter in building structures

2021 ◽  
Author(s):  
Daniel Caicedo Diaz ◽  
Luis Lara-Valencia ◽  
John Blandon
Keyword(s):  
Performance Evaluation ◽  
Case Studies ◽  
Seismic Performance ◽  
Passive Control ◽  
Control Device ◽  
Design Parameters ◽  
Building Structures ◽  
Tuned Mass Dampers ◽  
Seismic Accelerations ◽  
And Performance

This paper concerns the numerical performance evaluation of multi-degree-of-freedom systems equipped with Tuned Mass Dampers-Inerter (TMDIs); a passive control device used for the mitigation of mechanical vibrations induced by dynamic loads. The inerter device is commonly used to increase the apparent mass of classics tuned mass dampers (TMDs), improving its seismic performance. To evaluate the TMDI action, three case studies are employed, determined from three real buildings of Medellin city from low, medium to high rise (30 meters, 97 meters, and 144 meters, respectively). Optimum design parameters are found using a metaheuristic optimization based on the differential evolution method, first, for the minimization of the horizontal peak displacements, and then, for the minimization of the root mean square (RMS) response of displacements. Besides, the case studies are assessed using eight seismic accelerations records representative of the literature. Finally, the seismic performance is evaluated on each case study considering different levels of inertance induced by the inerter device: 5%, 20%, and 50% with respect to the total mass of the building, for which it is observed a better dynamic behavior when TMDIs with lower values of inertance are implemented.

DYNAMIC ANALYSIS OF STRUCTURES WITH MULTIPLE TUNED MASS DAMPERS

2009 ◽  
Vol 15 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Roman Lewandowski ◽  
Justyna Grzymisławska
Keyword(s):  
Wind Velocity ◽  
Random Vibration ◽  
Building Structures ◽  
Tuned Mass Dampers ◽  
Velocity Fluctuations ◽  
Frame Building ◽  
Random Forces ◽  
Spectral Density Functions ◽  
Strong Winds ◽  
Multiple Tuned Mass Dampers

It is the purpose of this paper to analyse the possibility of reducing the vibrations of frame building structures with the help of multiple tuned mass dampers. Structures exposed to strong winds are considered. Excitation forces, which are functions of wind velocity fluctuations, are treated as random forces. The spectral density functions of wind velocity fluctuations are assumed as proposed by Davenport. The correlation theory of random vibration is used and the root mean squares of displacements and accelerations are determined. Several remarks, concerning the effectiveness of multiple tuned or mass dampers, are formulated from the results of calculation. Santrauka Nagrinėjama galimybė sumažinti stipraus vėjo veikiamų rėminių pastatų konstrukcijų svyravimus, taikant masės slopintuvų sistemą. Vibracijas sukeliančios jėgos, priklausančios nuo vėjo greičio svyravimų, laikomos atsitiktiniais dydžiais. Vėjo greičio svyravimo spektro tankio funkcijos nagrinėjamos Davenport metodu. Atlikus atsitiktinių vibracijų regresinę analizę, nustatytos poslinkių ir pagreičių vidutinės kvadratinės paklaidos. Remiantis skaičiavimo rezultatais, padarytos masės slopintuvų efektyvumo išvados.

Oppositely oriented series multiple tuned mass dampers and application on a parallel machine tool

2022 ◽  
Vol 163 ◽  
pp. 108196
Author(s):  
Wenshuo Ma ◽  
Xiaoliang Jin ◽  
Jingjun Yu ◽  
Yiqing Yang ◽  
Xinjun Liu ◽  
...  
Keyword(s):  
Machine Tool ◽  
Parallel Machine ◽  
Tuned Mass Dampers ◽  
Parallel Machine Tool ◽  
Multiple Tuned Mass Dampers

scholarly journals Special Issue on Advanced Methods for Seismic Performance Evaluation of Building Structures

2020 ◽  
Vol 10 (20) ◽  
pp. 7353
Author(s):  
Sang Whan Han
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Building Structures ◽  
Special Issue ◽  
Large Area ◽  
Seismic Performance Evaluation ◽  
Seismic Engineering ◽  
Seismic Regions ◽  
Moderate Seismic Regions ◽  
Great Damage

When an earthquake occurs, it causes great damage to a large area. Although seismic engineering continues to develop, it is reported that recently occurred earthquakes inflicted major damage to various structures and loss of human lives. Such earthquake damage occurs in high seismic regions as well as low to moderate seismic regions. This special issue contains topics on newly developed technologies and methods for seismic performance evaluation and seismic design of building structures.

Adaptive multiple tuned mass dampers based on modal parameters for earthquake response reduction in multi-story buildings

2016 ◽  
Vol 20 (9) ◽  
pp. 1375-1389 ◽  
Author(s):  
Mohammad Sabbir Rahman ◽  
Md Kamrul Hassan ◽  
Seongkyu Chang ◽  
Dookie Kim
Keyword(s):  
Tuned Mass Damper ◽  
Primary Objective ◽  
Modal Parameters ◽  
Earthquake Response ◽  
Tuned Mass Dampers ◽  
Mass Damper ◽  
Modal Mass ◽  
Story Building ◽  
Selection Of ◽  
Multiple Tuned Mass Dampers

The primary objective of this research is to find the effectiveness of an adaptive multiple tuned mass damper distributed along with the story height to control the seismic response of the structure. The seismic performance of a 10-story building was investigated, which proved the efficiency of the adaptive multiple tuned mass damper. Structures with single tuned mass damper and multiple tuned mass dampers were also modeled considering the location of the dampers at the top of the structure, whereas adaptive multiple tuned mass damper of the structure was modeled based on the story height. Selection of the location of the adaptive multiple tuned mass damper along with the story height was dominated by the modal parameters. Participation of modal mass directly controlled the number of the modes to be considered. To set the stage, a comparative study on the displacements and modal energies of the structures under the El-Centro, California, and North-Ridge earthquakes was conducted with and without various types of tuned mass dampers. The result shows a significant capability of the proposed adaptive multiple tuned mass damper as an alternative tool to reduce the earthquake responses of multi-story buildings.

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