Journal ArticleDOI
Active control of doubly curved laminated composite shells using elliptical smart constrained layer damping treatment
S.R. Sahoo,M. C. Ray +1 more
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In this paper, the performance of the smart constrained layer damping (SCLD) treatment with elliptical geometrical plan form is investigated for controlling the vibrations of various types of doubly curved composite shells.Abstract:
In this paper, performance of the smart constrained layer damping (SCLD) treatment with elliptical geometrical plan form is investigated for controlling the vibrations of various types of doubly curved composite shells. The SCLD treatment is composed of a viscoelastic layer and an advanced constraining piezoelectric composite (PZC) layer attached at the top surface of the composite shell. A mesh free (MF) model of the smart composite shell has been developed based on the element free Galerkin approach to study its dynamic behaviour within the framework of a mixed layerwise displacement field theory considering transverse extensibility. Spherical, paraboloid and hyperboloid type composite shells with antisymmetric/symmetric cross-ply as well as general angle-ply lamination sequences are considered for the analysis. The numerical results demonstrated that the elliptical SCLD patches are more efficient in attenuating the vibration of the spherical and paraboloid laminated shells while the regular rectangular/square plan form patches are effective for the hyperboloid shells. The numerical results also indicate that the elliptical patches are having higher performance index in enhancing the active damping characteristics of the composite shells. Investigations are also carried out to analyze the effect of the variation in orientation of the piezoelectric fibers in the active PZC layers in attenuating the vibration of shells.read more
Citations
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Journal ArticleDOI
Nonlinear vibration analysis of fiber reinforced composite cylindrical shells with partial constrained layer damping treatment
Li Hui,Li Hui,Li Hui,Wang Ziheng,Wang Ziheng,Haiyu Lv,Haiyu Lv,Zhengxue Zhou,Zhengxue Zhou,Qingkai Han,Qingkai Han,Jinguo Liu,Zhaoye Qin,Zhaoye Qin,Zhaoye Qin +14 more
TL;DR: In this paper, a novel analytical model capable of accurately predicting the strain-dependent characteristics of fiber reinforced composite shells (FRCSs) with partial constrained layer damping (CLD) treatment was proposed.
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Higher order semi-analytical solution for bending of angle-ply composite laminated cylindrical shells based on three-dimensional theory of elasticity
TL;DR: In this paper, a semi-analytical numerical model was developed to analyze the bending responses of the angle-ply composite laminated cylindrical shells with the fiber reinforced layers using the scaled boundary finite element method (SBFEM).
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Nonlinear free and forced vibration of porous piezoelectric doubly-curved shells based on NUEF model
TL;DR: In this article, the nonlinear free and forced vibration of porous piezoelectric doubly-curved shells resting on visco-Pasternak foundation is performed within the framework of the nonuniform electric field (NUEF) model and von Karman geometric nonlinearity assumption.
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Act of nonlinear proportional derivative controller for MFC laminated shell
H. S. Bauomy,A. T. EL-Sayed +1 more
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A meshless Hermite weighted least-square method for piezoelectric structures
Xiao Ma,Bo Zhou,Shifeng Xue +2 more
TL;DR: In this paper, a meshless Hermite weighted least square method is developed to improve the accuracy and stability of the numerical analysis for piezoelectric structures, including the constitutive equation, geometric equations, equilibrium equations and boundary conditions.
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