Performance-based optimal design of tuned impact damper for seismically excited nonlinear building

Lu, Zheng; Li, Kun; Ouyang, Yuting; Shan, Jiazeng

doi:10.1016/j.engstruct.2018.01.042

Cited by 46 publications

(21 citation statements)

References 41 publications

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“…Particle damping technology can provide effective broadband vibration reduction in harsh environments such as high and low temperature. It has many advantages, such as remarkable vibration reduction effect, isotropy, high reliability, and no change of the original structure [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Research on Vibration Reduction Characteristics of Continuum and Noncontinuum System on Coupling for High‐Power Gear Transmission Based on Particle Damping Materials

Xiao

Wang

et al. 2021

Shock and Vibration

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High-power gears are widely used in various engineering fields. The gear transmission system is an extremely complex elastic system, which produces complex vibration under internal and external excitation. For the vibration and noise problems caused by transmission error, a discrete element and finite coupling method based on the particle filling rate is proposed. Firstly, the gear dynamic model was established, and the particle damper was installed in the gear to reduce the vibration of the gear. Secondly, through the coupling process, the contact force and contact position between the noncontinuous medium and the continuous medium were correctly transferred to the corresponding nodes of the finite element analysis model. Then, the equivalent displacement mapping of the contact loads’ node of the gear was realized, and the transformation of the local coordinate to the global coordinate was carried out. Finally, by combining theoretical analysis with experimental verification, the influence of the filling rate of damping particles on the vibration reduction effect of the gearbox under different working conditions was studied. The 2 mm tungsten particles were selected, and the particle damper had the best damping effect when the filling rate was 88%.

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Section: Introductionmentioning

confidence: 99%

Research on Vibration Reduction Characteristics of Continuum and Noncontinuum System on Coupling for High‐Power Gear Transmission Based on Particle Damping Materials

Xiao

Wang

et al. 2021

Shock and Vibration

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“…In addition, Elias et al [19] investigated the effectiveness of multi-mode control while using multiple tuned mass dampers (MTMD) [20][21][22][23][24]. Lu et al [25] and Elias et al [26] proposed optimal TMD design methods to reduce the dynamic displacement of a nonlinear building under unknown earthquake excitations. Nakai et al [27] developed a large TMD for counteracting the effects of long-period earthquakes in an existing high-rise building.…”

Section: Introductionmentioning

confidence: 99%

Application of Tuned Mass Damper to Mitigation of the Seismic Responses of Electrical Equipment in Nuclear Power Plants

Cho¹,

Chang

Sung

2020

Energies

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A tuned mass damper (TMD) was developed for mitigating the seismic responses of electrical equipment inside nuclear power plants (NPPs), in particular, the response of an electrical cabinet. A shaking table test was performed, and the frequency and damping ratio were extracted, to confirm the dynamics of the cabinet. Electrical cabinets with and without TMDs were modeled while using SAP2000 software (Version 20, Computers and Structures, NY, USA) that was based on the results. TMDs were designed while using an optimization method and the equations of Den Hartog, Warburton, and Sadek. The numerical models were verified while using the shaking table test results. A sinusoidal sweep wave was applied as input to identify the vibration characteristics of the electrical cabinet over a wide frequency range. Applying various seismic loads that were adjusted to meet the RG 1.60 design response spectrum of 0.3 g then validated the control performance of the TMD. The minimum and maximum response spectrum reduction rates of the designed TMDs were 44.7% and 62.9%, respectively. Further, the amplification factor of the electrical cabinet with the TMD was decreased by 53%, on average, with the proposed optimization method. In conclusion, TMDs can be considered to be an effective way of enhancing the seismic performance of the electrical equipment inside NPPs.

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“…Lu et al 29–34 carried out shaking table and wind tunnel tests of structures equipped with PTMDs and systematically compared the effects of different system parameters using the discrete element method. A performance‐based optimal design method for a tuned impact damper was proposed by Lu et al 35 Chen et al 36,37 proposed a PTDM to suppress the excessive vibrations of a wind turbine tower and conducted a series of tests on its control effectiveness with different design parameters. Zhang and Liu 38 conducted vibration tests of a mast arm structure with particle thrust damping‐based TMD device and found that it can decrease the vibration amplitudes of the mast arm under ambient/broadband and harmonic excitations.…”

Section: Introductionmentioning

confidence: 99%

“…While there have been numerous recent studies on PTMDs, none considered SSI effects, which are presently ignored in PTMD design 35 . In the present study, shaking table tests of an uncontrolled, an undamped TMD‐equipped, and a PTMD‐equipped structure—all reduced scale—resting on either a rigid base or a pile foundation embedded in a soil box have been conducted at Tongji University, China.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of particle tuned mass damper devices for pile‐supported multi‐story frames under seismic excitations

Liu

et al. 2020

Struct Control Health Monit

Self Cite

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Particle tuned mass dampers (PTMDs) have attracted recent attention for reducing seismic demands on large structures. Yet, research on the control performance of PTMDs for soil-structure interaction (SSI) systems under earthquake excitations is non-existent. This paper presents a comprehensive investigation on the effectiveness of PTMD devices for pile-supported multistory frames through shaking table tests and simulations with validated numerical models. Particle damping effectiveness is analyzed through comparisons with systems lacking external damping. The test results show that the mitigation effects of PTMDs on the maximum structural accelerations and displacements decrease when SSI effects are present and that particle damping improves control performance of conventional TMDs. Detailed finite element models of the tested specimens are also constructed-including SSI effects-and validated initially against the test data. In these models, the soil nonlinearities are considered using a bounding surface plasticity model, and the PTMD devices are simplified to an equivalent single-particle damper using an analytical model. The validated numerical models can be used in further parametric studies involving optimal PTMD design and deployment within a performance-based seismic engineering framework.

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Performance-based optimal design of tuned impact damper for seismically excited nonlinear building

Cited by 46 publications

References 41 publications

Research on Vibration Reduction Characteristics of Continuum and Noncontinuum System on Coupling for High‐Power Gear Transmission Based on Particle Damping Materials

Research on Vibration Reduction Characteristics of Continuum and Noncontinuum System on Coupling for High‐Power Gear Transmission Based on Particle Damping Materials

Application of Tuned Mass Damper to Mitigation of the Seismic Responses of Electrical Equipment in Nuclear Power Plants

Effectiveness of particle tuned mass damper devices for pile‐supported multi‐story frames under seismic excitations

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