Free vibration analysis of rotating polar orthotropic annular plate with ER damping treatment

Yeh, Jui‐Feng

doi:10.1016/j.compositesb.2011.01.023

Cited by 19 publications

(7 citation statements)

References 18 publications

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“…The displacement profile of the core layer was also obtained using compatibility conditions of three layers. 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.…”

Section: Mr/er Sandwich Plates With Rectangular Face Layersmentioning

confidence: 99%

“…Sandwich structures with annular plate, skew plate, and shell face layers Although rectangular sheets have been widely employed to serve as the constraining and base layers for MR/ER sandwich plates, application of annular (Yeh, 2007a(Yeh, , 2007b(Yeh, , 2010a(Yeh, , 2010b(Yeh, , 2011a(Yeh, , 2012Yeh et al, 2009) and skew plates (Narayana and Ganesan, 2007) has also been reported. The effects of different parameters such as magnetic/electric field, core layer thickness, aspect ratio, and boundary condition on the annular or skew plates are similar to those of the Figure 14.…”

Section: Mr/er Sandwich Plates With Rectangular Face Layersmentioning

confidence: 99%

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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%

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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“…When the external magnetic field is removed, the MR fluid returns to its original properties in milliseconds. Hence, MR fluid is used as a structural core component to alter the structure’s stiffness, damping, and modal characteristics [ 5 , 6 , 7 ]. The magnetic field controls MR fluid, which can be used as a core damping component inside the host structure [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Tunable Stiffness and Damping Study on Flexible PVC Cantilever Structure Embedded with MR Fluid

Ramkumar¹,

Gnanaprakasam²,

Thirumarimurugan³

2021

Materials

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The stiffness and damping of a flexible smart cantilever structure controlled by a magnetic field is investigated in this research. The cantilever structure is fabricated by using flexible polyvinyl chloride as a host structure of rectangular cross-section embedded with magnetorheological (MR) fluid. The deflection of the cantilever structure at the free end is used to analyze the stiffness change of the cantilever structure. The stiffness of the specimen with MR fluid at magnetic flux density of 0.171T is greater than that of the specimen without subjected to magnetic field. The strength of the applied magnetic field is directly related to the structure’s stiffness. Under the influence of a magnetic field, the MR fluid embedded inside the flexible PVC cantilever structure significantly dampens the vibrations of the structure.

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“…Application of annular (Yeh, 2007a(Yeh, , 2007b(Yeh, , 2010(Yeh, , 2011 and skew face layers (Narayana and Ganesan, 2007) in the smart sandwich structures have been reported in the literature. For example, Yeh presented a comprehensive study on the dynamic characteristics of the circular and annular sandwich plates containing ER fluid as the core layer (2007a), the rotating ER circular sandwich plates (2010), dynamic stability of the annular ER plate (2007b), and free vibration of the rotating polar orthotropic sandwich annular plate (2011).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear vibration analysis of circular/annular/sector sandwich panels incorporating magnetorheological fluid operating in the post-yield region

Aboutalebi

Eshaghi

Taghvaeipour

2020

Journal of Intelligent Material Systems and Structures

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This study offers a comprehensive analysis on the nonlinear vibratory behavior of circular, annular, and sector sandwich panels containing magnetorheological (MR) fluid as the core layer. Due to the large deformation experienced by the sandwich structures, the MR fluid operates in the post-yield region, in which the shear strain and shear stress are nonlinearly dependent. The post-yield characteristics of the MR fluid are quantified using the experimental results available in the literature. The present study also employs the experimental results presented in the literature on the dynamic characteristics of a MR based sandwich circular plate to demonstrate accuracy of the results. To identify governing equations of motion of the structures, a finite element approach based on von Karman formulations is employed. Moreover, displacement control strategy is used to solve the extracted nonlinear equations and evaluate dynamic characteristics of the MR based circular/annular/sector sandwich plates in terms of resonant frequencies and loss factors. This study highlights the effect of post-yield behavior of the MR fluid in the nonlinear vibration attenuation of MR sandwich structures, under different levels of magnetic field. Also, the effects of maximum deformation and magnetic field on the functionality of the MR fluid are comprehensively investigated.

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Free vibration analysis of rotating polar orthotropic annular plate with ER damping treatment

Cited by 19 publications

References 18 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

Tunable Stiffness and Damping Study on Flexible PVC Cantilever Structure Embedded with MR Fluid

Nonlinear vibration analysis of circular/annular/sector sandwich panels incorporating magnetorheological fluid operating in the post-yield region

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