Influences of material gradient and nonlinearity on the forced vibration of orthotropic shell structures

Sofiyev, A.H.; Turan, Ferruh; Kuruoğlu, N.

doi:10.1016/j.compstruct.2021.114157

Cited by 12 publications

(1 citation statement)

References 14 publications

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“…In the presence of linear viscous damping, Sofiyev et al 47 studied the nonlinear forced vibrations of composite plates, panels, and shells reinforced with advanced materials. Under external excitations, Sofiyev et al 48 also analyzed the forced vibration of orthotopic double‐curved shallow shells with considering the nonlinearity and material gradient effects. However, the forced vibration studies of smart structural systems are few in the previous literature.…”

Section: Introductionmentioning

confidence: 99%

Hygrothermal vibration of a laminated sandwich plate with magnetostrictive faces and a homogeneous core

Zenkour

El-Shahrany

2021

Polymer Composites

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Hygrothermal forced vibration and damping analyses of a simply supported symmetric laminated composite plate with homogeneous core and magnetostrictive layers are examined using the exponential displacement model in this article. Three hygrothermal environment distribution types are investigated: uniform, linear and nonlinear rises in the present analysis. The equations of motion for laminated rectangular plates subjected to hygrothermal loads and in-plane forces in x and y directions are developed through Hamilton's principle. The closed-form solution is arrived at based on Navier's technique to analyze the hygrothermal effect on the vibrational behavior of the structure. Some parametric examples are presented to discuss the effects of the smart layer location, lamination schemes, mode number, aspect ratio, thickness ratio, feedback gain control value, in-plane forces, core thickness-to-fiber reinforced layer thickness ratio, magnetostrictive layer thickness to fiber-reinforced layer thickness ratio, temperature and moisture changes on vibration response of the proposed model. The study results illustrate that the high hygro ratio weakens the plate stiffness, and accordingly, the amplitude of the deflection increases with raising the moisture and/or temperature. The numerical results emphasize the strong role of the feedback control gain values and the smart layer position in controlling the system vibration. The largest deflections and highest damping time interval happen in the uniform temperature distribution and moisture concentration case. Moreover, the vibration frequencies of the thin smart plates are smaller than the thick ones.

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Section: Introductionmentioning

confidence: 99%

Hygrothermal vibration of a laminated sandwich plate with magnetostrictive faces and a homogeneous core

Zenkour

El-Shahrany

2021

Polymer Composites

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Nonlinear free flexural vibration of sandwich hypar shell in thermal environment

Rout

Hota

2023

J Braz. Soc. Mech. Sci. Eng.

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Analysis and Experimental Research on Vibration Characteristics of Pressure Shell Structure

Pan

Liu

2023

Exp Tech

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The vibration and sound radiation characteristics of the submarine pressure hull structure are important performance indicators for the acoustic design of the submarine structure. In this paper, the spectral element method is used to analyze the vibration of the shell structure. Combined with the periodic structure theory, the theoretical calculation method of the periodic ribbed shell structure is deduced, and the analytical method that can be used to calculate the vibration of the pressure shell structure is established. The feasibility of applying the spectral element method to the vibration calculation of the pressure shell structure is verified by comparing the analytical calculation and the finite element simulation. The vibration characteristics test experiment of the actual submarine pressured hull structure is carried out. The results show that the theoretical analysis is correct. Highlights The vibration and sound radiation characteristics of the submarine pressure hull structure have an important influence on the radiated noise of the submarine. A theoretical analysis method of vibration characteristics of pressure hulled based on spectral element method and periodic structure theory is proposed. The experimental study on vibration characteristics and active control of line spectrum of the pressure hull is carried out.

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Influences of material gradient and nonlinearity on the forced vibration of orthotropic shell structures

Cited by 12 publications

References 14 publications

Hygrothermal vibration of a laminated sandwich plate with magnetostrictive faces and a homogeneous core

Hygrothermal vibration of a laminated sandwich plate with magnetostrictive faces and a homogeneous core

Nonlinear free flexural vibration of sandwich hypar shell in thermal environment

Analysis and Experimental Research on Vibration Characteristics of Pressure Shell Structure

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