Semi-active magnetorheological dampers for reducing response of high-speed railway bridges

Luu, M.; Martínez-Rodrigo, M.D.; Zabel, Volkmar; Könke, Carsten

doi:10.1016/j.conengprac.2014.08.006

Cited by 24 publications

(20 citation statements)

References 16 publications

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“…It is also safe and reliable with low energy consumption and stable temperature (Liao et al, 2002). The unique rheological properties of MRF have attracted wide research interests in various applications, such as in the automotive industry (Edward et al, 2008;Shiao and Nguyen, 2014;Hema et al, 2017), precision polishing (Jang et al, 2010;Anwesa and Manas, 2018;Luo et al, 2018) and buildings (Luu et al, 2014;Ha et al, 2018;Christie et al, 2019). One of the most popular applications is the MR damper which replaced the hydraulic oil with the MRFs in the cylinder of the conventional damper.…”

Section: Introductionmentioning

confidence: 99%

Design and Modeling for 2D Plate Type MR Damper

Chen

Huang

et al. 2019

Front. Mater.

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A two-dimensional magnetorheological damper is developed for the engineering two-dimensional damping need. The velocity and pressure distribution model of the two-dimensional plate-type damper, and the damping force calculation model are established based on the Navier-Stokes equation. Several structural and physical parameters, including the working gap δ, the length a, and the width a of the middle slide plate, are analyzed theoretically. The damping performance of the two-dimensional plate-type magnetorheological damper was evaluated using a two-dimensional vibration test-bed, with the effect of the excitation current analyzed. The experimental results suggest a significant influence of Coulomb damping force on the damping force of magnetorheological damper when using appropriate magnetorheological fluid. As the excitation current increases, the damping force of magnetorheological damper becomes larger while the system amplitude decreases gradually in both directions, a maximum reduction of 2.5956 times. It's confirmed that the design of the two-dimensional plate-type magnetorheological damper is reasonable.

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Section: Introductionmentioning

confidence: 99%

Design and Modeling for 2D Plate Type MR Damper

Chen

Huang

et al. 2019

Front. Mater.

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“…Semi‐active control is a particularly appealing way of an implementation of the (ubiquitous in nature) paradigm of a smart adaptation in the area of structural and machine engineering . Potential application ranges from the adaptive landing gears of aircrafts, through the motor‐vehicle suspensions, and the drivetrain systems to semi‐active damping of the bridge suspensions . Concluding, we emphasize that it is very hard to find in the widely available literature any publications on active or semi‐active control of periodically vibrating mechanical systems in steady‐state operating conditions.…”

Section: Introductionmentioning

confidence: 99%

“…30,31 Potential application ranges from the adaptive landing gears of aircrafts, 32 through the motor-vehicle suspensions, 14,33,34 and the drivetrain systems 35 to semi-active damping of the bridge suspensions. 36 Concluding, we emphasize that it is very hard to find in the widely available literature any publications on active or semi-active control of periodically vibrating mechanical systems in steady-state operating conditions. Thus, the main novelties of the approach proposed here can be summarized as follows:…”

Section: Introductionmentioning

confidence: 99%

Semi‐active reduction of vibrations in the mechanical system driven by an electric motor

Michajłow

Jankowski

Szolc

et al. 2017

Optim Control Appl Methods

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Summary In this paper, a semi‐active damping approach is used for reduction of vibrations in a laboratory drivetrain system. The considered drivetrain system is powered by an electric, asynchronous motor at the one side and loaded with a harmonically varying torque on the other side. Here, an influence of electromechanical interaction, i.e., an electromechanical coupling, between the electric motor and the mechanical system has been taken into consideration. The harmonic load signal induces torsional vibrations in the system, which in the steady‐state phase of motion become periodic. The aim of the work is to determine the optimal control function for a semi‐active damping element, leading to vibration reduction and considering only the steady‐state phase of system motion. The optimal control is derived by using a semi‐analytical approach based on the optimal control theory aided with supplementary numerical computations. The proposed methodology is fully general, and it can be directly applied to any type of a periodically oscillating system.

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“…The resulting vibrations reduce the safety of travel while also affecting the comfort of the passengers negatively. For this reason, the vibration analyses of railway bridges are considered as a significant factor in bridge design [1]. In recent years, research and development activities on suppressing railway bridge vibrations are increasingly concentrated, especially to increase passenger comfort without compromising safety at high speeds [1,3,11,12].…”

Section: Introductionmentioning

confidence: 99%

“…For conventional speeds in railway transport, it may be sufficient to apply only passive methods such as polyurethane materials to insulate the bridge vibrations. However, after the increasing speeds on the railways, semi-active and active control methods are begun to be tried as only passive methods do not provide the desired performance in suppressing bridge vibrations [1,3,11,12].…”

Section: Introductionmentioning

confidence: 99%

Vibration Mitigation of Railway Bridge Using Magnetorheological Damper

Metin¹,

Ulu²,

Paksoy³

et al. 2018

Modern Railway Engineering

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The purpose of this study is to analyze the railway bridge vibrations and control their negative effects through semi-active magnetorheological (MR) damper. Dynamic analysis of a railway bridge subjected to the moving load is performed. The real structural parameters are used, and the six-axle train is simulated as moving loads. The railway bridge is modeled as Euler-Bernoulli beam theory, and it is discretized through Galerkin method. To mitigate the bridge vibrations, MR damper with a fuzzy logic-based controller (FLC) is positioned at the ends of the bridge. The simulations of the system are performed by MatLab software. Finally, the results are examined both in the time and frequency domains.

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Semi-active magnetorheological dampers for reducing response of high-speed railway bridges

Cited by 24 publications

References 16 publications

Design and Modeling for 2D Plate Type MR Damper

Design and Modeling for 2D Plate Type MR Damper

Semi‐active reduction of vibrations in the mechanical system driven by an electric motor

Vibration Mitigation of Railway Bridge Using Magnetorheological Damper

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