Active Vibration Control of Container Cranes against Earthquake by the Use of LMI Based Mixed<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:msub><mml:mrow><mml:mi>H</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mo>/</mml:mo><mml:msub><mml:mrow><mml:mi>H</mml:mi></mml:mrow><mml:mrow><mml:mi>∞</mml:mi></mml:mrow></mml:msub></mml:math>State-Feedback Controller

Azeloglu, C. Oktay; Sagirli, Ahmet

doi:10.1155/2015/589289

Cited by 8 publications

(5 citation statements)

References 27 publications

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“…Sagiril [8] developed a five degrees-of-freedom mathematical model of gantry cranes to investigate the dynamic behaviors of cranes under seismic effects. Yazici and Oktay et al [9][10][11] studied the active vibration control of container cranes against earthquakes by varied controllers. ere are very few studies focused on the structural seismic response of gantry crane: Peng et al [12] developed the fragility curves of a gantry crane based on the incremental dynamic analysis.…”

Section: Introductionmentioning

confidence: 99%

Assessing Seismic Performance of Gantry Crane Subjected to Near-Field Ground Motions Using Incremental Dynamic and Endurance Time Analysis Methods

Peng

Guo

et al. 2022

Shock and Vibration

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Assessing the seismic performance of the gantry crane is significant since the structure is more vulnerable to earthquakes with the increase in size and lifting weight capacity. This paper aims to investigate the seismic response of the gantry crane incorporating near-field ground motions using incremental dynamic and endurance time analysis (IDA and ETA) methods. To model the structure accurately, a nonlinear finite element model of the gantry crane considering the viscoelastic effect is developed in the OpenSees platform. Then, the IDA method is also carried out for a comparison with the ETA method. The results of the two methods are consistent with a correlation of 93.9% while the computational demand of the ETA method is much less than those of the IDA method. To study further, both the seismic incident angle and the application of viscous dampers using the Maxwell model are analyzed and discussed in detail. The results show that seismic incident angle has a distinct influence on the maximum seismic displacement and viscous dampers can significantly reduce the seismic demand of the gantry crane. These findings support the seismic design of gantry cranes and evaluate the structural seismic performance efficiently.

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Section: Introductionmentioning

confidence: 99%

Assessing Seismic Performance of Gantry Crane Subjected to Near-Field Ground Motions Using Incremental Dynamic and Endurance Time Analysis Methods

Peng

Guo

et al. 2022

Shock and Vibration

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“…For example, Sagiril [13] developed a five degree-of-freedom mathematical model of a gantry crane to investigate the dynamic behaviors of cranes under seismic effects. Yazici and Oktay et al [14][15][16] studied the active vibration control of container cranes against earthquakes by varies controllers. These studies have proven that active vibration control has a great potential in cranes for suppressing earthquake-induced vibration [17].…”

Section: Introductionmentioning

confidence: 99%

Fragility Analysis of Gantry Crane Subjected to Near-Field Ground Motions

Peng

Jia

et al. 2020

Applied Sciences

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A gantry crane located in a near-field earthquake-prone area is selected in this paper as an example, and the nonlinear finite element (FE) model is used considering the material nonlinearity including plastic hinges and the second order (P − Δ ) effect with a comprehensive consideration of the components including sill beams, support beams, legs, and trolley girders. The local displacement ratio (LDR) and deflection ratio (DR) are proposed as demand measures (DMs) of the gantry crane, which are utilized to construct a probabilistic seismic demand model (PSDM). Then, the capacity limit states for the gantry crane are defined in this study by performing pushover analysis (POA), known as serviceability, damage control, and collapse prevention, respectively. Moreover, the operating capacity of the crane during an earthquake is further investigated and quantified by operating seismic peak ground acceleration, which is defined as the maximum acceleration when the failure probability is 50%. Finally, the fragility curves and the failure probability of the gantry crane are derived by the above definitions, all of which are pioneering in the seismic design of gantry cranes subjected to near-field ground motions. Some major conclusions are drawn that the horizontal component of an earthquake has a more notable effect on the structural damage of the gantry crane compared to the vertical component, and incremental dynamic analysis can take seismic uncertainty into account and quantify the deformation of gantry crane in more detail.

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“…e active control device could either be an active control actuator, active tendon controller, or active mass damper. ere are many interesting studies on new active control methods and new active control algorithms in the last years [2][3][4][5][6][7][8][9][10]. Shen et al [2] investigated three control algorithms for active vibration control of the sting in wind tunnel.…”

Section: Introductionmentioning

confidence: 99%

“…For an active vibration isolation system, active hybrid control technology was applied in Wang et al [9]. A mixed H 2 / H infinity -based active state feedback controller was described for mitigating vibrations in seismic excited container cranes in Azeloglu and Sagirli [10].…”

Section: Introductionmentioning

confidence: 99%

Absolute Instantaneous Optimal Control Performance Index for Active Vibration Control of Structures under Seismic Excitation

Yanik

2019

Shock and Vibration

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In this paper, an instantaneous optimal control performance index for active control of structures under seismic excitation is analytically proposed. Absolute velocity and absolute displacement terms are implemented to the conventional state vector terms and eventually to the resulting performance index expression. The seismic response reduction effectiveness of the proposed performance index is compared with the linear quadratic regulator control (LQR). For numerical verification of the performance index, an eight-story shear building with a fully active tendon controller system under unidirectional earthquake is considered as the first example. For a more complex model, a three-dimensional tier building under the effect of bidirectional earthquakes is selected as second numerical example. Unidirectional near fault and bidirectional near fault earthquakes are used in the simulations. The control energy demand of each control method is also considered in the comparison. It is obtained from numerical simulations that the proposed performance index is as effective as LQR in attenuating structural vibrations. However, the resulting performance index does not require a priori knowledge of the seismic excitation like the LQR. The nonlinear Riccati matrix equation solution of the LQR is not required in the proposed performance index as well.

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Active Vibration Control of Container Cranes against Earthquake by the Use of LMI Based MixedH2/H∞State-Feedback Controller

Cited by 8 publications

References 27 publications

Assessing Seismic Performance of Gantry Crane Subjected to Near-Field Ground Motions Using Incremental Dynamic and Endurance Time Analysis Methods

Assessing Seismic Performance of Gantry Crane Subjected to Near-Field Ground Motions Using Incremental Dynamic and Endurance Time Analysis Methods

Fragility Analysis of Gantry Crane Subjected to Near-Field Ground Motions

Absolute Instantaneous Optimal Control Performance Index for Active Vibration Control of Structures under Seismic Excitation

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