Designing optimal tuned mass dampers using improved harmony search algorithm

Yazdi, HA; Saberi, Hassan; Hatami, Farzad

doi:10.1177/1369433216646018

Cited by 15 publications

(14 citation statements)

References 32 publications

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“…Den Hartog [1] obtained analytical solution for the TMD with dashpot element called the traditional TMD. This study was followed by other works that suppressing the resonant vibrations of the main structure due to various excitations [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. These works indicate that a TMD device yields a higher level of control performance in suppressing the vibrations of the main structures.…”

Section: Introductionmentioning

confidence: 91%

Optimum Three-Element Tuned Mass Damper for Damped Main Structures under Ground Acceleration

Araz¹

2021

El-Cezeri Fen Ve Mühendislik Dergisi

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Passive control devices have been used for a long time to reduce unwanted vibrations. The most commonly used of these devices are tuned mass dampers. The optimum parameters of the three-element tuned mass damper for damped main structures due to ground acceleration are investigated in this paper. Unlike the traditional tuned mass damper, the three-element tuned mass damper contains two spring elements and one of them is connected in series with the damping element. The optimum parameters are obtained by simulated annealing algorithm. Numerical results show that the three-element tuned mass damper is very effective in reducing dynamic vibrations of the damped structures.

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Section: Introductionmentioning

confidence: 91%

Optimum Three-Element Tuned Mass Damper for Damped Main Structures under Ground Acceleration

Araz¹

2021

El-Cezeri Fen Ve Mühendislik Dergisi

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“…Bekda and Nigdeli [44] proposed using harmony search algorithm to find the best parameters for tuned mass dampers. Yazdi et al [45] proposed an improved harmony search algorithm for designing tuned mass dampers, and it is found that the improved harmony search algorithm is more efficient than the gene algorithm and the particle swarm optimization algorithm. Nigdeli and Alhan [46] optimized the parameters of the seismic isolation system through the harmony search algorithm.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of Damped Structure with Inerter System Based on Modified Harmony Search Algorithm

Pan

Xiao

Wang

et al. 2022

Advances in Civil Engineering

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An inerter system can amplify the deformation of its internal energy dissipation device, thereby improving the efficiency of energy dissipation and shock absorption. This is the so-called damping enhancement mechanism, one of the key mechanisms of the inerter system. Although the theoretical framework for damping enhancement of inerter systems has been established, the implementation of this principle for the design of an inerter system requires solving a complicated constrained optimization problem, which is not easy to be figured out using traditional approaches. To obtain valid design results through a lucid and robust method, it is proposed to optimize the damping parameters through a metaheuristic algorithm named harmony search algorithm in order to maximize the damping enhancement degree of the inerter system with the satisfaction of structural performance. First, the closed-form seismic response solutions of a single-degree-of-freedom (SDOF) structure with an inerter system are derived based on the theory of random vibration. Then, the mathematical expression of the constrained optimization problem is established. Due to the inefficiency of the original harmony search algorithm to solve the constrained optimization problem, the algorithm is modified by introducing a new harmony generating method and an adaptive strategy for parameter adjustment. The modified harmony search algorithm is compiled to solve the optimal design problem of the inerter system. The algorithm is verified by designing a structure with an inerter system. It is found that the number of iterations and time consumption until convergence required by the modified harmony search algorithm can be reduced by about 20%∼90% compared with the original algorithm, which confirms the effectiveness of the modified algorithm. The results of dynamic analyses show that the structure have achieved the preset performance demands under different cases and the damping enhancement characteristic of the inerter system is fully utilized.

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“…19 Alternatively, the optimal design of a TMD for the damped structure has been obtained with numerical optimization methods. 13,[20][21][22] For the methods mentioned above, the optimal results were obtained by assumptions of deterministic structural parameters and external excitations. However, the deterministic assumptions of a structural system and excitation may lead to a considerable reduction of the design performance.…”

Section: Introductionmentioning

confidence: 99%

Robust design of tuned mass damper with hybrid uncertainty

Tang

Xue

2021

Struct Control Health Monit

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The robust design of a tuned mass damper (TMD) with hybrid aleatory and epistemic uncertainties is proposed in this study. In this method, the aleatory uncertainty involved in the external excitation is represented with the white noise in stochastic theory. The epistemic uncertainties derived from fragmentary statistical data and incomplete preknowledge of structural model and site condition are fully captured with the discrete multi-intervals in evidence theory. In order to overcome the computational bottleneck related to the uncertainty propagation of epistemic uncertainties, a parallel-efficient global optimization (parallel-EGO) method is proposed to approximate the bounds of structural response for joint focal elements. Then, a robustness objective function, with the aim to minimize the worst system response of the primary structure, is presented to search the optimal parameters of TMD. Finally, case studies for a single-degree-of-freedom (SDOF) system and a multi-degreefreedom (MDOF) system validate that the designed TMD not only significantly reduces the worst seismic responses but also improves the robustness of the primary structure.

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Designing optimal tuned mass dampers using improved harmony search algorithm

Cited by 15 publications

References 32 publications

Optimum Three-Element Tuned Mass Damper for Damped Main Structures under Ground Acceleration

Optimum Three-Element Tuned Mass Damper for Damped Main Structures under Ground Acceleration

Optimal Design of Damped Structure with Inerter System Based on Modified Harmony Search Algorithm

Robust design of tuned mass damper with hybrid uncertainty

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