Experimental investigation of semiactive robust control for structures with magnetorheological dampers

AGGÜMÜŞ, Hüseyin; Çetin, Şaban

doi:10.1177/0263092317711985

Cited by 19 publications

(17 citation statements)

References 36 publications

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“…Real control systems contain uncertainties that fall into one of two categories: noise signals or dynamic disturbance effects. Dynamic disturbance effects are the differences between the mathematical model and the real system dynamics [22]. In addition to modeling errors that affect the performance and stability of the control system, high-frequency dynamics that cannot be modeled in the systems are also critical problems.…”

Section: Control Designmentioning

confidence: 99%

“…The control element MR damper, which is critical for the system and provides semi-activity of STMD, was set up experimentally, and the other parts of the system were modeled as computer simulations, and the system responses were analyzed by running these two parts simultaneously. The H ∞ control theory can be expertly designed to suppress structural system responses [22][23][24][25]. It can also efficiently improve system responses in active mass dampers [24].…”

Section: Introductionmentioning

confidence: 99%

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Robust H∞ Control of STMDs Used in Structural Systems by Hardware in the Loop Simulation Method

AGGÜMÜŞ

Güçlü

2020

Actuators

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This paper investigated the performance of a semi-active tuned mass damper (STMD) on a multi-degree of freedom (MDOF) building model. A magnetorheological (MR) damper was used as a control element that provided semi-activity in the STMD. The Hardware in the Loop Simulation (HILS) method was applied to mitigate the difficulty and expense of experimental studies, as well as to obtain more realistic results from numerical simulations. In the implementation of this method for the STMD, the MR damper was set up experimentally, other parts of the system were modeled as computer simulations, and studies were carried out by operating these two parts simultaneously. System performance was investigated by excitation with two different acceleration inputs produced from the natural frequencies of the MDOF building. Additionally, a robust H∞ controller was designed to determine the voltage transmitted to the MR damper. The results showed that the HILS method could be applied successfully to STMDs used in structural systems, and robust H∞ controls improve system responses with semi-active control applications. Moreover, the control performance of the MR damper develops with an increase in the mass of the STMD.

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Section: Control Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robust H∞ Control of STMDs Used in Structural Systems by Hardware in the Loop Simulation Method

AGGÜMÜŞ

Güçlü

2020

Actuators

Self Cite

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“…Magneto-rheological (MR) damper is a kind of smart semi-active control device, which exhibits some prominent advantages including fast response, lower power consumption, broad operational temperature range. 1 Therefore, MR dampers are widely employed in civil structures, 2,3 automobiles 4,5 and railway vehicles. 6,7…”

Section: Introductionmentioning

confidence: 99%

Influential characteristics of electromagnetic parameters on self-powered MR damper and its application in vehicle suspension system

Gao

Niu

Jia

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part K:

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In order to reuse the energy dissipated by magneto-rheological (MR) damper, a self-powered MR damper is designed and analyzed theoretically. The main thrust of this work is establishing the mechanical-electromagnetic coupling model of quarter vehicle suspension based on self-powered MR damper, whilst the energy conversion efficiency of self-powered MR damper with electromagnetic parameters changing is investigated. The magnetic circuit model is formulated firstly. The influence of electromagnetic parameters on current in MR damper is analyzed systemically in frequency domain. A multi-objective optimization method is performed to determine the electromagnetic parameters. Subsequently a quarter vehicle suspension system with self-powered MR damper is introduced. The mechanical-electromagnetic coupling model is established. The frequency response function is derived under random road excitation. The vibration isolation capability of the proposed quarter vehicle suspension system is addressed in time and frequency domain respectively. Compared to passive control, the amplitude of sprung mass velocity, acceleration and transmissibility are reduced by 51%, 78% and about 10 dB in time and frequency domain respectively. Finally the energy conversion efficiency of self-powered MR damper with magnetic parameters changing under random road excitation is discussed. The vibration isolation performance of self-powered MR damper is more effective than passive control, especially in resonance range of the suspension system.

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“…A representative actuator of semi-active control is magneto-rheological (MR) damper possessing the merits, which are fast response, low energy consumption, and stability without power supply. Hence, MR dampers are used widely in the area of civil structures (Aggumus et al, 2018; Zafarani et al, 2018) and vehicle engineering (Jeyasenthil and Choi, 2018; Morales et al, 2018). For the field of ambulance stretchers, Chae and Choi (2015) proposed a novel vibration isolator equipped with MR dampers for the purpose of enhancing ride quality of the patients.…”

Section: Introductionmentioning

confidence: 99%

Influence characteristics of electrical parameters and vibration isolation properties of the stretcher system based on parallel mechanism and self-powered magneto-rheological damper

Gao

Niu

Liu

et al. 2019

Journal of Vibration and Control

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For reducing multidimensional vibrations endured by supine patients on ambulances, a new ambulance stretcher composed of parallel mechanism and self-powered magneto-rheological damper is introduced. The main thrust of this work is to investigate the vibration isolation capability and energy conversion efficiency of the proposed stretcher with changes in electrical parameters. First, the kinematic and dynamic equations are deduced by geometry and Lagrange approach, respectively. Subsequently, the circuit model of self-powered magneto-rheological damper is created. The frequency response function is derived by Kirchhoff’s law, which indicates the electrical power utilization rate. Then, the vibration isolation capability of the self-powered stretcher system is analyzed with changes in electrical parameters. Compared with passive control, the vibration isolation capability of the self-powered stretcher is improved significantly in horizontal, longitudinal, vertical, and pitch directions. The first two resonance peaks of displacement response are insensitive to changes in electrical parameters in all directions. Last, the energy conversion efficiency of the self-powered stretcher is discussed. Decreasing resistance and inductance could improve energy conversion efficiency significantly.

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Experimental investigation of semiactive robust control for structures with magnetorheological dampers

Cited by 19 publications

References 36 publications

Robust H∞ Control of STMDs Used in Structural Systems by Hardware in the Loop Simulation Method

Robust H∞ Control of STMDs Used in Structural Systems by Hardware in the Loop Simulation Method

Influential characteristics of electromagnetic parameters on self-powered MR damper and its application in vehicle suspension system

Influence characteristics of electrical parameters and vibration isolation properties of the stretcher system based on parallel mechanism and self-powered magneto-rheological damper

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