Application of artificial neural networks in optimal tuning of tuned mass dampers implemented in high-rise buildings subjected to wind load

Ramezani, Masoud; Bathaei, Akbar; Ghorbani‐Tanha, Amir K.

doi:10.1007/s11803-018-0483-4

Cited by 29 publications

(9 citation statements)

References 28 publications

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“…The above comments have motivated the development of alternative vibration control strategies, which among others, include: (i) Tuned Mass Dampers (TMDs), (ii) Inerters, (iii) Negative Stiffness Devices (NSD) and "Quazi Zero Stiffness" (QZS) oscillators, and (iv) Negative Stiffness driven Absorbers/KDampers. (Figure 1) The Tuned Mass Damper (TMD) has a long history, with applications in several types of engineering structures, such as high-rise buildings and skyscrapers [1,2,3], bridges [4], wind and wave excitation in wind turbines [5], etc. In addition, the TMD can be used as a possible supplement to the conventional base isolation approaches, implemented within the bases of structures, aiming to reduce the displacement demand [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Stiff Dynamic Absorbers for the Vertical Seismic Protection of Structures

Kalogerakou¹,

Kapasakalis²,

Antoniadis³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The majority of the existing seismic protection systems and techniques are related to horizontal ground motions, while there are only a few vertical seismic protection systems. The main reason is due to the conflict concerning the demand for isolation stiffness. More specifically, a vertical isolated system must have sufficient vertical rigidity to sustain the weight of the isolated object/system and retain the static vertical deflection in reasonable limits. On the other hand, the isolated system must also have enough flexibility to isolate the accelerations. In order to overcome this difficulty, a novel vertical seismic absorber system is proposed, that combines a Quasi-Zero Stiffness (QZS) design including negative stiffness elements, an enhanced Tunned Mass Damper (TMD) and an inerter. The QZS oscillator manages to maintain the vertical rigidity of the structure, the inerter manages to reduce the frequency of the system, without weakening the structure or increase the seismic load and the TMD is responsible for absorbing the external excitations, significantly increasing the effective damping. This way, the dynamic behavior of the system is improved, in terms of absolute accelerations, and simultaneously, the static settlements are retained at any desired level. The design is based on engineering criteria, and the excitation input is selected according to the seismic design codes.

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Section: Introductionmentioning

confidence: 99%

Stiff Dynamic Absorbers for the Vertical Seismic Protection of Structures

Kalogerakou¹,

Kapasakalis²,

Antoniadis³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Sun et al [ 19 ] used a 3D pendulum TMD (PTMD) to protect an offshore wind turbine under multiple hazards. Ramezani et al [ 20 ] optimized a TMD according to an artificial neural network (ANN) for a tall building.…”

Section: Introductionmentioning

confidence: 99%

Study on adaptive‐passive eddy current pendulum tuned mass damper for wind‐induced vibration control

Wang

Nagarajaiah

Shi

et al. 2020

Structural Design Tall Build

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SummaryTuned mass dampers (TMDs) are used to control wind‐excited responses of high‐rise building as traditional vibration control devices. A TMD will have an excellent control effect when it is well tuned. However, a traditional passive TMD is sensitive to the frequency deviation; the mistuning in frequency and damping ratio both will decrease its control effect. In the previous research, an adaptive‐passive variable pendulum TMD (APVP‐TMD) is proposed, which can identify the TMD optimal frequency and retune itself through varying its pendulum length. However, it is found that the frequency variation will change the TMD damping ratio, and an unreasonable damping ratio will lead to a decrement in the robustness of a TMD. In this study, an adaptive‐passive eddy current pendulum TMD (APEC‐PTMD) is presented, which can retune the frequency through varying the pendulum length, and retune the damping ratio through adjusting the air gap between permanent magnets and conductive plates. An adjustable eddy current pendulum TMD (PTMD) is tested, and then, a single‐degree‐of‐freedom (SDOF) primary model with an APEC‐PTMD is built, and functions of frequency and damping ratio retuning are verified. The 76‐story wind‐sensitive benchmark model is proposed in the case study. The original model without uncertainty and ±15% stiffness uncertainty models are considered, and response control effects of different controllers are compared. Results show that because the APEC‐PTMD can both retune its frequency and damping ratio; it is more robust and effective than a passive TMD. It is also found that the APEC‐PTMD has a similar control effect with the active TMD, with little power consumption and better stability.

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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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Application of artificial neural networks in optimal tuning of tuned mass dampers implemented in high-rise buildings subjected to wind load

Cited by 29 publications

References 28 publications

Stiff Dynamic Absorbers for the Vertical Seismic Protection of Structures

Stiff Dynamic Absorbers for the Vertical Seismic Protection of Structures

Study on adaptive‐passive eddy current pendulum tuned mass damper for wind‐induced vibration control

Damping of high-rise structure vibrations with viscoelastic dynamic dampers

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