Vibration and damping analysis of orthotropic cylindrical shells with electrorheological core layer

Yeh, Jui‐Feng

doi:10.1016/j.ast.2010.08.002

Cited by 34 publications

(18 citation statements)

References 21 publications

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“…rectangular sandwich plate structures. Furthermore, few studies have addressed dynamic characteristics of sandwich shells with MR/ER fluids as the core layer (Hasheminejad and Motaaleghi, 2014;Mikhasev et al, 2011;Sedaghati, 2012b, 2012c;Tylikowski, 2000;Yeh, 2011b). Figure 15 shows two typical annular circular and shell sandwich plates.…”

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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“…These models differ considerably, which may be attributed to differences in fluid type, particle size/distribution, base structure, and the adopted identification method. Viscoelastic models have commonly been used to represent the key rheological properties of the ERFs in the pre-yield regime [60][61][62]. These include solid-like models such as the Zener element model [63], Kelvin-Voigt model [64,65], the three parameter fluid models [66], and Maxwell fluid-like models [67,68].…”

Section: Electrorheological Fluid Modelmentioning

confidence: 99%

“…In present work, the first order Kelvin-Voigt viscoelastic damping model [61,62] will be adopted for describing the electrorheological behavior of the core layer. Consequently, the relevant stress/strain components within the ERF-core, ðr c…”

Section: Electrorheological Fluid Modelmentioning

confidence: 99%

“…In present work, the first order Kelvin–Voigt viscoelastic damping model [61,62] will be adopted for describing the electrorheological behavior of the core layer. Consequently, the relevant stress/strain components within the ERF-core, (σxznormalc, σθznormalc) and (εxznormalc, εθznormalc), may be related in the form [62] where Gnormalc is the shear (storage) modulus, and ηnormalc is the shear viscosity (loss) coefficient. Furthermore, the vibration damping capability of the ERF-core in the linear vibration approximation is directly linked to the electric field-induced rheological variation of the storage and loss modulus (Gnormalc,ηnormalc) of the core material that will be elaborated at the beginning of the “Numerical results” section.…”

Section: Formulationmentioning

confidence: 99%

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Active damping of sound transmission through an electrorheological fluid-actuated sandwich cylindrical shell

Hasheminejad

Cheraghi

Jamalpoor

2018

Jnl of Sandwich Structures & Materials

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An exact model is proposed for sound transmission through a sandwich cylindrical shell of infinite extent that includes a tunable electrorheological fluid core, and is obliquely insonified by a plane progressive acoustic wave. The basic formulation utilizes Hamilton’s variational principle, the classical and ﬁrst order shear deformation shell theories, the Kelvin–Voigt viscoelastic damping model (for the electrorheological fluid-core layer), and the wave equations for internal/external acoustic domains coupled by the proper fluid/structure compatibility relations. The Fourier–Bessel series expansions are used to arrange the governing (coupled) system equations in state-space form. The classical Sliding Mode Control law is then applied to semi-actively reduce sound transmission through the composite cylinder by smart variation of stiffness and damping characteristics of the electrorheological fluid-core actuator layer according to the control command. Numerical results present both the uncontrolled and controlled sound transmission loss spectra of the sandwich cylindrical shell at three angles of incidence for three distinct sets of material input parameters that represent the electric-field dependency of the complex shear modulus of the electrorheological fluid-core layer. The superior soundproof performance of electrorheological fluid-based sliding mode control system in avoiding the highly detrimental sound transmission loss dips occurring throughout the critical resonance and coincidence regions is demonstrated. Likewise, remarkable enhancements in the sound insulation characteristics of the electrorheological fluid-actuated structure utilizing the first or second electrorheological fluid material model are achieved within the stiffness-controlled region, especially at lower frequencies in near-grazing incidence situation. A number of limiting cases are introduced and validity of the formulation is confirmed by comparison with the available data.

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“…283 The vibration and damping characteristics analysis of the orthotropic cylindrical shells with an ER layer and a constraining layer are studied. 284 Compared with VEL materials, ER fluids can be effectively used to suppress the vibration over a broad frequency and temperature range. In this study, vibration analysis and damping characteristics of sandwich cylindrical panel structures using semiactive ER fluid treatments have been investigated for different boundary conditions.…”

Section: Vibration Introductionmentioning

confidence: 99%

On buckling and free vibration studies of sandwich plates and cylindrical shells: A review

Kumar¹,

Srinivasa²

2018

Journal of Thermoplastic Composite Materials

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Many review articles were published on free vibration and buckling of laminated composites, sandwich plates, and shells. The present article reviews the literature on the buckling and free vibration analysis of shear deformable isotropic and laminated composite sandwich plates and shells using various methods available for plates in the past few decades. Various theories, finite element modeling, and experimentations have been reported for the analysis of sandwich plates and shells. Few papers on functionally graded material plates, plates with smart skin (electrorheological, magnetorheological, and piezoelectric), and also viscoelastic materials were also reviewed. The scope for future research on sandwich plates and shells was also accessed.

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Vibration and damping analysis of orthotropic cylindrical shells with electrorheological core layer

Cited by 34 publications

References 21 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

Active damping of sound transmission through an electrorheological fluid-actuated sandwich cylindrical shell

On buckling and free vibration studies of sandwich plates and cylindrical shells: A review

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