Independent modal space fuzzy control of earthquake-excited structures

Park, Kwan-Soon; Koh, Hyun‐Moo; Seo, Chung-Won

doi:10.1016/j.engstruct.2003.10.005

Cited by 29 publications

(8 citation statements)

References 32 publications

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“…The premises of all the rules in the fuzzy rule table are first compared to the fuzzified inputs in order to determine which rules apply to the current situation. This matching process highlights the fuzzy input and output variables in the fuzzy rule table [38]. The inference process then determines the certainties of the fuzzy output variables from the fuzzified inputs, which correspond to the certainties of the fuzzy input variables.…”

Section: Semi-active Fuzzy Control Strategymentioning

confidence: 99%

Semi-active fuzzy control of cable-stayed bridges using magneto-rheological dampers

Kim

Park

et al. 2007

Engineering Structures

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Section: Semi-active Fuzzy Control Strategymentioning

confidence: 99%

Semi-active fuzzy control of cable-stayed bridges using magneto-rheological dampers

Kim

Park

et al. 2007

Engineering Structures

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“…where (24) As the third case of outputs, the interbuilding displacement is introduced to describe the approach between the stories placed at the i-th level in the adjacent buildings (25) For the three-building system considered the vector of inter-building approaches is represented as, (26) The vector of interbuilding approaches can be obtained using the output matrix (27) Note that, as it was mentioned before, the middle building is the tallest one. It should be observed that positive values of the interbuilding approaches in equation (25) correspond to a reduction in the distance between the corresponding stories. Clearly, for a given interbuilding separation, large values of the interbuilding approaches may result in interbuilding collisions.…”

Section: Mohammad Gudarzimentioning

confidence: 99%

μ-Synthesis Controller Design for Seismic Alleviation of Structures with Parametric Uncertainties

Gudarzi

2015

Journal of Low Frequency Noise, Vibration and Active Control

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The purpose of this paper is to apply robust μ-synthesis output-feedback controller design for seismic alleviation of multi-structural buildings with parametric uncertainties and to tackle the instabilities and performance declines due to these uncertainties. To this aim, a general lumped-mass tree-building model of a shear-frame multi-structure with horizontal movements is developed, first. Then, an output-feedback controller based on the theory of structured singular value is designed for the main structure that not only alleviates the earthquake excitation but also guarantees the stability of the closed-loop system. Finally, to investigate the effect of the designed controller on the main and neighbouring structures, numerical simulations using historically recorded ground accelerations are carried out, where certain percentages of uncertainties are added to the multi-structure's parameters and the results are compared to those for passive structures and the results are discussed.

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“…Schurter and Roschke [16] used a neurofuzzy technique to control a single-degreeof-freedom and four-degrees-of-freedom building models. Park et al [17] presented an independent modal space fuzzy control technique for the vibration control of earthquakeexcited structures. The technique adopts a two-step design procedure consisting of designing an optimal controller in the modal space and fuzzy tuning of predesigned modal control gains.…”

Section: Introductionmentioning

confidence: 99%

Application of Fuzzy Control with Market-Based Control Strategy to Structures

Li²,

Liu³

2013

Mathematical Problems in Engineering

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The market-based control as a control strategy is developed based on an analogy between the control force-energy source in the structural area and the supply demand in the free market. The optimal problem of control force from an actuator is transformed to that of the allocation resource in the market. Since the supply-demand relation model and iteration procedure for the optimal price solution are necessary and relatively hard to understand and perform for civil engineers, the fuzzy logical method is proposed in the framework of the market-based control to acquire an equivalent system corresponding to the market-based control method. An equivalent fuzzy logical rule is established through analyzing a single-degree-of-freedom system with the controller using the MBC strategy under earthquakes. The results show that the fuzzy logical method is able to also reduce the displacement and acceleration responses effectively similar to the MBC method, and the consumed computational time for the fuzzy logical method is obviously saved.

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Independent modal space fuzzy control of earthquake-excited structures

Cited by 29 publications

References 32 publications

Semi-active fuzzy control of cable-stayed bridges using magneto-rheological dampers

Semi-active fuzzy control of cable-stayed bridges using magneto-rheological dampers

μ-Synthesis Controller Design for Seismic Alleviation of Structures with Parametric Uncertainties

Application of Fuzzy Control with Market-Based Control Strategy to Structures

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