Dynamic characterization and parametric instability analysis of rotating magnetorheological fluid composite sandwich plate subjected to periodic in-plane loading:
01 Sep 2019-Journal of Sandwich Structures and Materials (SAGE PublicationsSage UK: London, England)-Vol. 21, Iss: 6, pp 2099-2126
TL;DR: In this article, the dynamic characterization and instability analysis of a rotating composite magnetorheological fluid sandwich plate under periodic in-plane loading is investigated, and the results show that it is stable with respect to the inplane loading.
Abstract: In this present study, the dynamic characterization and instability analysis of a rotating composite magnetorheological fluid sandwich plate under periodic in-plane loading are investigated. The go...
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Cites background from "Dynamic characterization and parame..."
...[29] studied the instability regions of a rotating composite magnetorheological fluid sandwich plate under periodic in-plane loading....
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Cites methods from "Dynamic characterization and parame..."
...[10] studied numerically the dynamic and instability responses of the rotating MR sandwich composite plate under in-plane loading condition based on classical laminated plate theory....
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References
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TL;DR: In this article, a rotating electrorheological (ER) sandwich beam is proposed, which is composed of three layers with ER fluids sandwiched between two elastic layers based on the Hamilton's principle and finite element method (FEM).
Abstract: The modeling and vibration properties of rotating electrorheological (ER) sandwich beams are discussed. The proposed beam is composed of three layers with ER fluids sandwiched between two elastic layers. Based on the Hamilton's principle and finite element method (FEM), the equations of motion of ER beam are derived. The effects of different electric fields, rotating speed and thickness ration on the resonant frequencies and modal loss factors are presented. The results of numerical simulation show that the model loss factor of rotating ER beam can be substantially increased when applied an electric field. The ER materials have a significant effect on the vibration suppression of rotating composite beam.
13 citations
"Dynamic characterization and parame..." refers background in this paper
...[14] investigated numerically and experimentally the vibration analysis of rotating sandwich beams filled with electrorheological (ER) fluid and concluded that the damping loss factors and natural frequencies of the rotating beam increase with increase in the applied electric field....
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TL;DR: In this paper, the vibration analysis of fully and partially treated laminated composite magnetorheological (MR) fluid sandwich plates has been investigated experimentally, and a comparison of the natural frequencies of the MR fluid sandwich structure has been made at various magnetic field intensities.
Abstract: In this study, the vibration analysis of fully and partially treated laminated composite Magnetorheological (MR) fluid sandwich plates has been investigated experimentally. The natural frequencies of fully and partially treated laminated composite MR fluid sandwich plates have been measured at various magnetic field intensities under two different boundary conditions. The variations of natural frequencies with appliedmagnetic field, boundary conditions and location ofMRfluid pocket have been explored. Further, a comparison of natural frequencies of fully and partially treated MR fluid sandwich structure has been made at various magnetic field intensities.
12 citations
"Dynamic characterization and parame..." refers background in this paper
...[11] experimentally investigated the vibration analysis of fully and partially treated laminated composite MR-fluid sandwich plate....
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TL;DR: In this article, the dynamic instability analysis of rotating delaminated thickness tapered composite plates with different taper configurations subjected to periodic in-plane loads is performed, and the finite element formulation is validated by comparing the parametric exciting frequencies evaluated using the present finite element method with those presented in available literature.
Abstract: In this study, the dynamic instability analysis of rotating delaminated thickness tapered composite plates with different taper configurations subjected to periodic in-plane loads is performed. The governing differential equations of motion of the various configurations of a rotating thickness mid-plane delaminated tapered laminated composite plate are presented in the finite element formulation based on classical laminated plate theory including various rotational effects. The finite element formulation developed for the dynamic instability analysis of rotating delaminated tapered composite plate is validated by comparing the parametric exciting frequencies evaluated using the present finite element method (FEM) with those presented in available literature and comparing the natural frequencies of rotating delaminated tapered composite plate evaluated using the present FEM with experimentally measured results. Various parametric studies are also performed to study the effect of taper configurations, rotational speed, delamination length, delamination location and in-plane periodic loads on stability of the structure. It was seen that the influences of rotating speed on the principal DIR spectra among taper configurations and uniform plate are significant and the normalized width of principal and second instability regions of parametric resonance frequencies increase in the order of uniform, TC3, TC2 and TC1 for all the rotating speeds.
12 citations
"Dynamic characterization and parame..." refers background in this paper
...Equation (24) is a Mathieu–Hill type equation, describing the instability behavior of the rotating MR-fluid sandwich plate subjected to a periodic uniaxial compressive load as presented in Arumugam and Rajamohan [21,22]....
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...Rajamohan et al. [4] investigated numerically the free and forced vibration responses of a multi-layer beam with MR fluid as a core layer and demonstrated experimentally the capability of semi-active control of sandwich beam with external applied magnetic field....
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...Rajamohan et al. [7] studied the dynamic characterization of non-homogeneous MR-fluid-based multi-layer beam....
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...The correlation for the shear modulus and the magnetic field intensity of the MR fluid is considered as presented in Rajamohan et al. [4] G ¼ G0 þ jG00...
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...Rajamohan et al. [6] investigated the vibration analysis of a partially treated MR-fluid multi-layered sandwich beam using finite element formulation (FEM) and Ritz formulation....
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TL;DR: In this article, an effort has been made to deal with stability analysis of a smart sandwich beam with cross-ply faces and ER core, and an ER layer is adhered to the laminated composite beam to increase the stability.
Abstract: In this article, an effort has been made to deal with stability analysis of a smart sandwich beam with cross-ply faces and ER core. An ER layer is adhered to the laminated composite beam to increas...
11 citations
"Dynamic characterization and parame..." refers methods in this paper
...The stability analysis of smart sandwich beams with cross-ply composite face sheets and electro-rheological fluid as core materials subjected to axial loads was investigated numerically by Tabassian and Rezaeepazhand [15]....
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TL;DR: In this paper, the dynamic characterization and parametric instability analysis of rotating thickness tapered laminated composite plates is performed using MATLAB® software, and the finite element formulation is validated by comparing the natural frequencies and Parametric resonance frequencies evaluated using the present finite element method (FEM) with those obtained from the experimental measurements.
Abstract: In this study, the dynamic characterization and parametric instability analysis of rotating thickness tapered laminated composite plates is performed. The governing differential equations of motion of the various plates of a rotating thickness tapered laminated composite plate are derived based on classical laminated plate theory and presented in the finite element formulation including the effects of Coriolis acceleration, the initial stress induced stiffness and the vibratory displacement dependent additional stiffness due to rotating effects and are solved using MATLAB® software. The finite element formulation developed for dynamic characterization and instability analysis of rotating tapered laminated composite plate is validated by comparing the natural frequencies and parametric resonance frequencies evaluated using the present finite element method (FEM) with those obtained from the experimental measurements and available literature. The free vibration analysis and instability regions of the rotating thickness tapered laminated composite plates are investigated by performing various parametric studies such as the effect of taper plates, rotational speed, setting angle and uni-axial periodic static and dynamic loads. It is demonstrated that the natural frequencies, critical buckling loads and instability regions of the tapered composite plates can be altered by tailoring the various taper plates with rotating speed and setting angle. It is also shown that tapered plates are more suitable for rotating structure under dynamic environment than uniform composite plate.
8 citations