Passive control of bilinear hysteretic structures by tuned mass damper for narrow band seismic motions

Zhang, Zhiqiang; Balendra, T.

doi:10.1016/j.engstruct.2013.03.044

Cited by 49 publications

(28 citation statements)

References 22 publications

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“…Yet, the force applied by the physiotherapist (61.5 N) is not high enough to create heat dissipation. Furthermore, Tuned-Mass-Dampers (TMD) [11] or Tuned-Liquid-Dampers (TLD) [12] are often used in seismic applications. But, they dissipate energy only by absorbing vibrations, thus they are not appropriate for our purpose.…”

Section: Introductionmentioning

confidence: 99%

Flow changing device for varying the compliance of a simulator dedicated to respiratory physiotherapy learning

Bussing

Goujon

Barthod

et al. 2014

2014 10th France-Japan/ 8th Europe-Asia Congress on Mecatronics (MECATRONICS2014- Tokyo)

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Semi-active energy dissipation devices are used in various domains like the automotive industry or seismic protection structures. This article presents the design and the implementation of a cylinder/piston energy dissipation system in a 6-month old infant simulator for respiratory physiotherapy training. The system is supposed to modify the compliance of the simulators thorax by equipping it with a flow changing device connected between the two cylinder chambers. The principle consists in modifying the geometry of the flow pipe section. For that purpose, two solutions are proposed and implemented.

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Section: Introductionmentioning

confidence: 99%

Flow changing device for varying the compliance of a simulator dedicated to respiratory physiotherapy learning

Bussing

Goujon

Barthod

et al. 2014

2014 10th France-Japan/ 8th Europe-Asia Congress on Mecatronics (MECATRONICS2014- Tokyo)

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“…Alternative approaches, such as passive, semi-active and active controls, have been proposed and developed to protect structures from earthquakes and severe winds. Passive control devices, such as tuned mass dampers [21], tuned liquid dampers [4,13] and electromagnetic friction dampers [7], do not require an external power source. However, the passive control system has limited practical application because it is not able to adapt to different structural changes or varying usage patterns and loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Fuzzy semi-active control and analysis of wind-induced vibration of a ship lift

Zhou

2014

Mater Struct

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Based on the dynamic characteristics obtained with a three-dimension finite element method, a reduced mechanical model and parameters for the ship lift can be modified and obtained. Simulated analysis shows that the reduced mechanical model can adequately represent the dynamic characteristics of the ship lift. The wind-induced vibrations and seismic responses of the structure were calculated respectively. A fuzzy semi-active control strategy for seismic response reduction using a magnetorheological damper was presented. A roof intelligent isolation system was also proposed. Simulation analysis results show that the fuzzy semiactive control with a magnetorheological smart damper is beneficial in suppressing the seismic whiplash effect on the top workshop and confirm that the fuzzy semiactive control strategy is valid in this scenario.

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“…Analyzing TMDs on single‐ and multistorey inelastic structures, several researches in the 1980s and 1990s report insignificant reductions of peak displacements and accelerations under high‐intensity ground motions . Looking at the peak reduction as an insufficient criterion, more recent studies emphasize TMDs' ability to reduce low‐cycle fatigue damage in the event of medium‐intensity earthquakes . As a result, TMDs are currently considered a successful control strategy under moderate earthquakes, i.e., when the structure remains linear or weakly nonlinear but scarcely effective or even detrimental under severe ground shaking, i.e., when the structural response turns highly nonlinear.…”

Section: Introductionmentioning

confidence: 99%

Lifecycle cost optimization of tuned mass dampers for the seismic improvement of inelastic structures

Matta

2017

Earthq Engng Struct Dyn

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Summary The seismic performance of tuned mass dampers (TMDs) on structures undergoing inelastic deformations may largely depend on the ground motion intensity. By estimating the impact of each seismic intensity on the overall cost of future seismic damages, lifecycle cost (LCC) proves a rational metric for evaluating the benefits of TMDs on inelastic structures. However, no incorporation of this metric into an optimization framework is reported yet. This paper presents a methodology for the LCC‐optimal design of TMDs on inelastic structures, which minimizes the total seismic LCC of the combined building‐TMD system. Its distinctive features are the assumption of a mass‐proportional TMD cost model, the adoption of an iterative suboptimization procedure, and the initialization of the TMD frequency and damping ratios according to a conventional linear TMD design technique. The methodology is applied to the seismic improvement of the SAC‐LA benchmark buildings, taken as representative of standard steel moment‐resisting frame office buildings in LA, California. Results show that, despite their limited performance at the highest intensity levels, LCC‐optimal TMDs considerably reduce the total LCC, to an extent that depends on both the building vulnerability and the TMD unit cost. They systematically present large mass ratios (around 10%) and frequency and damping ratios close to their respective linearly designed optima. Simulations reveal the effectiveness of the proposed design methodology and the importance of adopting a nonlinear model to correctly evaluate the cost‐effectiveness of TMDs on ordinary structures in highly seismic areas.

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Passive control of bilinear hysteretic structures by tuned mass damper for narrow band seismic motions

Cited by 49 publications

References 22 publications

Flow changing device for varying the compliance of a simulator dedicated to respiratory physiotherapy learning

Flow changing device for varying the compliance of a simulator dedicated to respiratory physiotherapy learning

Fuzzy semi-active control and analysis of wind-induced vibration of a ship lift

Lifecycle cost optimization of tuned mass dampers for the seismic improvement of inelastic structures

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