Experimental Studies on Real-Time Testing of Structures with Elastomeric Dampers

Mercan, Oya; Ricles, James M.

doi:10.1061/(asce)0733-9445(2009)135:9(1124)

Cited by 46 publications

(40 citation statements)

References 16 publications

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“…The studies can be mainly classified as (i) development of hybrid simulation framework to seamlessly integrate multiple experimental and numerical modules [1][2][3][4], (ii) development of unconditionally stable integration algorithms for hybrid simulation [5][6][7], and (iii) actuator control strategy for delay compensation in real-time hybrid simulation [8][9][10][11][12][13]. The studies can be mainly classified as (i) development of hybrid simulation framework to seamlessly integrate multiple experimental and numerical modules [1][2][3][4], (ii) development of unconditionally stable integration algorithms for hybrid simulation [5][6][7], and (iii) actuator control strategy for delay compensation in real-time hybrid simulation [8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Model updating method for substructure pseudo‐dynamic hybrid simulation

Kwon

Kammula

2013

Earthq Engng Struct Dyn

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SUMMARY Substructure hybrid simulation has been actively investigated and applied to evaluate the seismic performance of structural systems in recent years. The method allows simulation of structures by representing critical components with physically tested specimens and the rest of the structure with numerical models. However, the number of physical specimens is limited by available experimental equipment. Hence, the benefit of the hybrid simulation diminishes when only a few components in a large system can be realistically represented. The objective of the paper is to overcome the limitation through a novel model updating method. The model updating is carried out by applying calibrated weighting factors at each time step to the alternative numerical models, which encompasses the possible variation in the experimental specimen properties. The concept is proposed and implemented in the hybrid simulation framework, UI‐SimCor. Numerical verification is carried out using two‐DOF systems. The method is also applied to an experimental testing, which proves the concept of the proposed model updating method. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

“…For example, only one element was physically represented out of nine [12], six [16], and three [11] main energy dissipation or lateral load resisting elements. For example, multi-story braced buildings or multi-span bridges consist of several structural elements that collectively influence the global response of the structure.…”

Section: Introductionmentioning

confidence: 99%

Model updating method for substructure pseudo‐dynamic hybrid simulation

Kwon

Kammula

2013

Earthq Engng Struct Dyn

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“…If there are load rate dependencies associated with the experimental substructure, the hybrid simulations must be carried out in real-time to capture the realistic performance of the experimental parts (Nakashima et al 1992;Horiuchi et al 1999;Mercan and Ricles 2009). Assuring the robustness and reliability of the computational platform along with maintaining fast and well synchronized data communication amongst the substructures are the key steps in implementation of the real-time hybrid simulation (Mercan and Ricles 2009). RTHS offers many benefits including the ability to consider a wide range of influential parameters, loading cases, and structural configurations in a cost effective and timely manner.…”

Section: Control Of Mdof System Using Dacsmentioning

confidence: 99%

Structural control using a deployable autonomous control system

Goorts

Phillips

Ashasi-Sorkhabi

et al. 2017

Int J Intell Robot Appl

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Structural control devices facilitate the construction of lightweight structures by suppressing excessive vibrations that arise from the reduced self-weight. Most of the current structural control systems are permanent installations designed to control particular structural properties and are hence specific to a particular application. This paper presents a novel concept of a deployable, autonomous control system (DACS) targeting specific applications where short-term vibration mitigation is desired. These applications may include control of existing structures during predictable extreme loading events or temporary structures where the need for vibration mitigation depends on usage characteristics. This control system consists of an electromechanical mass damper (EMD) mounted on an unmanned ground vehicle (UGV) equipped with vision sensors. The mobility of the UGV combined with on-board vision sensors facilitates autonomous positioning of the device at any desired location of the structure. This allows the device to update its position on the structure as required, through a simultaneous localization and mapping (SLAM) solution, to effectively control different structural modes. The performance of the SLAM solution is evaluated using a full-scale pedestrian bridge while the ability of the proposed system to re-position itself to control various modes of vibration is studied through real-time hybrid simulation (RTHS). The experimental results confirm the ability of the proposed system to effectively control large amplitude motion in slender bridges, while being able to position itself at the appropriate locations for multi-modal control. The concept of the overall system presents promising results for applications where temporary control is desired.

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“…To better visualize the actuator tracking performance throughout the entire experiment, the tracking indicator (TI) and amplitude indicator [45] are also calculated and are shown in Figs. 17 and 18.…”

Section: Actuator Controller Performance Evaluationmentioning

confidence: 99%