The effect of magneto-rheological fluid on vibration suppression capability of adaptive sandwich plates: Experimental and finite element analysis

Eshaghi, Mehdi; Rakheja, Subhash

doi:10.1177/1045389x15586449

Cited by 29 publications

(22 citation statements)

References 25 publications

(44 reference statements)

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“…Application of FE method has been extensively reported to derive governing equations of motion of MR/ER sandwich plates under different geometry boundary conditions (Cho et al, 2005;Lu and Meng, 2006;Yeh, 2007bYeh, , 2010bYeh, , 2011aYeh et al, 2009). Eshaghi et al (2015aEshaghi et al ( , 2015c) employed a sandwich plate element, as depicted in Figure 13, to derive governing equations of motion of an MR sandwich plate. The element consisted of four nodes with 10 DOF (longitudinal displacements, transverse displacement, and slopes about x-and y-axis for the top and bottom layers), per node.…”

Section: Mr/er Sandwich Plates With Rectangular Face Layersmentioning

confidence: 99%

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

Eshaghi

Sedaghati

Rakheja

2016

Journal of Intelligent Material Systems and Structures

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During past four decades, applications of magnetorheological and electrorheological fluids in adaptive sandwich structures have been widely studied, primarily for the purpose of vibration control. The rapid response time of controllable magnetorheological/electrorheological fluids to an applied magnetic/electric field and reversible variations in their stiffness and damping properties have been the key motivations for adaptive structures applications. This article presents a comprehensive review of the reported studies on applications of magnetorheological/electrorheological fluids for realizing active and semi-active vibration suppression in sandwich structures. The review focuses on methods of characterizing the magnetorheological/electrorheological fluids in the pre-yield region, magnetic/electric field-dependent phenomenological models describing the storage and loss moduli of fluids, experimental and analytical methods developed for vibration analysis of sandwich structures with magnetorheological/electrorheological fluid treatments, analysis of structures with partial magnetorheological/electrorheological fluid treatments and optimal treatment locations, and developments in control strategies for vibration suppression of magnetorheological/electrorheological sandwich structures. The studies on dynamic responses of fully and partially treated magnetorheological/electrorheological-based sandwich beams, plates, shells, and panels are also discussed, including the mathematical modeling methods and associated assumptions, methods of solutions, and experimental methods.

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Section: Mr/er Sandwich Plates With Rectangular Face Layersmentioning

confidence: 99%

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

Eshaghi

Sedaghati

Rakheja

2016

Journal of Intelligent Material Systems and Structures

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“…They presented the results for both free and forced vibration cases. Eshaghi et al (2015) presented both experimental and theoretical analyses about the effect of MR fluid on the vibration of sandwich plates. They used the classical plate theory (CPT) to extract the motion equations.…”

Section: Introductionmentioning

confidence: 99%

Vibration analysis of magnetorheological fluid circular sandwich plates with magnetostrictive facesheets exposed to monotonic magnetic field located on visco-Pasternak substrate

Amir

Arshid

Maraghi

et al. 2020

Journal of Vibration and Control

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Magnetorheological fluids are materials that react to the applied magnetic field and are converted to the quasi-solid phase from the liquid one. Their applications in control and suppression of vibration have interested scientists nowadays. The present study is focused on the vibrational behavior of magnetorheological fluid circular plates that are embedded with magnetostrictive face layers. Magnetostrictive materials are also playing an important role in vibration control and are used widely in smart devices such as sensors and actuators. The structure is exposed to the transverse monotonic magnetic field and is located on the visco-Pasternak elastic substrate. Using Hamilton’s principle and based on classical plate theory, the motion equations and boundary conditions are extracted, and the generalized differential quadrature method is selected to solve them. Three different types of magnetorheological fluids are considered, and their effect on the results is discussed. The outcomes of this study can be used to design more capable and precise dampers, smart structures, and devices.

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“…Sun et al (2003) investigated the relationship between the magnetic field and the complex shear modulus of MR materials in the pre-yield regime and predicted vibration characteristics of MR adaptive structures for different magnetic field levels. Eshaghi et al (2015) studied a MR fluid-based sandwich plate fabricated with two different magneto-rheological fluids (MRF-132DG and MRF-122EG) as the core layer and silicon rubber spacer as the sealant. Moreover, Ghorbanpour et al (2017) performed modelling and vibration analysis of the double of sandwich beams that consist of MR core and carbon nanotubes/ fibre/polymer composite face sheets.…”

Section: Introductionmentioning

confidence: 99%

Switching linear quadratic Gaussian control of a flexible blade structure containing magnetorheological fluid

Sivrioğlu

Bolat

2019

Transactions of the Institute of Measurement and Control

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The present study suggests a new active control structure with a switching algorithm for control current of the electromagnetic actuator to suppress vibrations of a flexible blade element containing magnetorheological (MR) fluid. An identification model between MR fluid inside the blade and the electromagnetic actuator is utilized to derive the force equation. Since only one electromagnet is employed to suppress the blade vibration, a single-sided control actuation occurs in the proposed system. Therefore, the pulling force used for vibration control is generated by the actuator when the blade moves to downward direction. A switching linear quadratic Gaussian (LQG) controller that produces always a positive control input is designed to attenuate the blade vibrations. The LQG controller with switching is experimentally implemented under the impact and steady-state aerodynamic disturbances. The results of experiments show that the proposed switching controller is effective to attenuate vibrations of the flexible blade element.

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The effect of magneto-rheological fluid on vibration suppression capability of adaptive sandwich plates: Experimental and finite element analysis

Cited by 29 publications

References 25 publications

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

Dynamic characteristics and control of magnetorheological/electrorheological sandwich structures: A state-of-the-art review

Vibration analysis of magnetorheological fluid circular sandwich plates with magnetostrictive facesheets exposed to monotonic magnetic field located on visco-Pasternak substrate

Switching linear quadratic Gaussian control of a flexible blade structure containing magnetorheological fluid

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