Shaking table test and numerical analysis of a coal-fired power plant equipped with large mass ratio multiple tuned mass damper (LMTMD)

Kang, Ying-jie; Peng, Lingyun; Pan, Peng; Xiao, Gen‐Qi; Wang, Hai‐shen

doi:10.1016/j.jobe.2021.102852

Cited by 4 publications

(5 citation statements)

References 38 publications

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“…The R RMS of the TMD increases with the increase in mass ratio. According to [6], the mass ratio of the TMD can only reach 0.1%-5% due to installation difficulties and economic costs. These mass ratios are much smaller than the optimal mass ratio, so the limited tuned mass cannot effectively reduce the structural vibrations.…”

Section: Effects Of the Auxiliary Mass Ratiomentioning

confidence: 99%

“…In sum, for the particular structure and ground motion in this study, these dampers are not always effective at controlling the seismic responses of the four-story steel frame. According to previous studies [3,[6][7][8][9][10], the control performance of dampers is influenced by many factors, such as the dynamic characteristics of the primary structure, the frequency characteristics and intensities of the seismic inputs, and the damper parameters. Therefore, the conclusions drawn from Figures 10-12 are specific and not generalizable.…”

Section: Effects Of the Auxiliary Mass Ratiomentioning

confidence: 99%

“…The conventional experimental method of investigating the control effects of dampers is to carry out shake table tests for complete structure-damper systems. For instance, Kang et al [6] conducted a series of 1:30 scaled model shake table tests and numerical simulations for a coal-fired power plant equipped with a large mass ratio multiple-tuned mass damper (LMTMD), and found that the LMTMD is effective and robust in reducing structural dynamic responses. Wang et al [7] evaluated the performance of a pendulum pounding-tuned mass damper (PPTMD) by carrying out a series of shake table tests.…”

Section: Introductionmentioning

confidence: 99%

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Substructure Shake Table Testing of Frame Structure–Damper System Using Model-Based Integration Algorithms and Finite Element Method: Numerical Study

Jiang

Chen

2021

Symmetry

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Substructure shake table testing (SSTT) is an advanced experimental technique that is suitable for investigating the vibration control of secondary structure-type dampers such as tuned mass dampers (TMDs). The primary structure and damper are considered as analytical and experimental substructures, respectively. The analytical substructures of existing SSTTs have mostly been simplified as SDOF structures or shear-type structures, which is not realistic. A common trend is to simulate the analytical substructure via the finite element (FE) method. In this study, the control effects of four dampers, i.e., TMD, tuned liquid damper (TLD), particle damper (PD) and particle-tuned mass damper (PTMD), on a frame were examined by conducting virtual SSTTs. The frame was modeled through stiffness-based beam-column elements with fiber sections and was solved by a family of model-based integration algorithms. The influences of the auxiliary mass ratio, integration parameters, time step, and time delay on SSTT were investigated. The results indicate that the TLD had the best performance. In addition, SSTT using model-based integration algorithms can provide satisfactory results, even when the time step is relatively large. The effects of integration parameters and time delay are not significant.

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Section: Effects Of the Auxiliary Mass Ratiomentioning

confidence: 99%

Section: Effects Of the Auxiliary Mass Ratiomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Substructure Shake Table Testing of Frame Structure–Damper System Using Model-Based Integration Algorithms and Finite Element Method: Numerical Study

Jiang

Chen

2021

Symmetry

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“…Typically, a floor structure exhibits closely spaced modes, and human-induced excitations span a broad frequency range. In such cases, a MTMD system, composed of several TMDs with different frequencies, is known to yield more effective control than a single TMD [38][39][40]. Wang et al [41] proposed an adaptive-passive variable mass MTMD for a floor slab.…”

Section: Introductionmentioning

confidence: 99%

Human-Induced Vibration Control of Floor Structures Using MTMD System Optimized by MATLAB-SAP2000 Interface

Zhang,

Shi,

Wang

2024

Buildings

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Under human-induced excitations, a floor structure may suffer excessive vibrations due to its large span and low damping ratio. Vertical vibrations, in particular, can become intolerable during resonance events. A tuned mass damper (TMD) is a widely used single-degree-of-freedom dynamic vibration absorber. To enhance the serviceability of a floor structure, a multiple TMD (MTMD) system finds broad application. The parameters of the MTMD must be carefully designed to achieve satisfactory performance. However, existing studies often employ a simplified model of the floor structure with closely spaced modes to optimize the parameters of MTMD. Nonetheless, an oversimplified floor model can lead to a reduction in its control effect. To solve this problem, this study utilizes the OAPI facility of SAP2000 to build a connection with MATLAB. A multi-objective optimization algorithm based on the artificial fish swarm algorithm (AFSA) for MTMD is developed in MATLAB, while the finite element model of a real floor structure is built in SAP2000. The locations of the MTMD system are initially specified in SAP2000 and, through the proposed MATLAB–SAP2000 interface, data can be exchanged between them. Based on the structural dynamic responses to external excitations in SAP2000, the optimization process for the MTMD is carried out in MATLAB. Concurrently, the parameters of the MTMD in SAP2000 are iteratively adjusted until they reach their final optimal values. To underscore the enhancements brought about by the proposed interface and optimization method, a comparative case study is conducted. A group of MTMDs, optimized using a conventional method, is presented for reference. The numerical results indicate that, overall, the proposed MTMD system exhibits superior control effectiveness and robustness.

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“…To address this problem, dual tuned mass dampers (DTMD) are used in many civil engineering due to their superb robustness in frequency tuning. [30][31][32] In this paper, a vibration model of a vertical cable-dual tuned mass dampers (C-DTMD) system is established. Several non-dimensional parameters are introduced to describe the vibration characteristics of coupled systems.…”

Section: Introductionmentioning

confidence: 99%

Modal analysis and vibration control of a vertical cable with dual tuned mass dampers

Zhang

Shixiang

et al. 2023

Journal of Low Frequency Noise, Vibration and Active Control

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This paper proposes a vibration model for modal analysis and vibration control of a vertical cable-dual tuned mass damper (C-DTMD) coupled system. The proposed model introduces several non-dimensional parameters to describe the in-plane vibration of the coupled system. Moreover, the phenomenon of modal split is comprehensively studied to present the complex vibration modes. Parameter analysis is conducted to show the influence of length ratio, mass ratio, damping ratio, and frequency ratio on vibration reduction. In addition, the theoretical model is verified using finite element methods. A practical vertical cable in Jiangyin Bridge with designed wind loads is chosen as a numerical example. The results show that DTMD devices can effectively reduce the modal vibration and have great potential for multi-mode vibration control of vertical cables in suspension bridges. The proposed model can accurately describe the in-plane vibration modes of C-DTMD systems and provides a basis for the optimal design of damper parameters.

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Shaking table test and numerical analysis of a coal-fired power plant equipped with large mass ratio multiple tuned mass damper (LMTMD)

Cited by 4 publications

References 38 publications

Substructure Shake Table Testing of Frame Structure–Damper System Using Model-Based Integration Algorithms and Finite Element Method: Numerical Study

Substructure Shake Table Testing of Frame Structure–Damper System Using Model-Based Integration Algorithms and Finite Element Method: Numerical Study

Human-Induced Vibration Control of Floor Structures Using MTMD System Optimized by MATLAB-SAP2000 Interface

Modal analysis and vibration control of a vertical cable with dual tuned mass dampers

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