Forced Vibration Analysis for a FGPM Cylindrical Shell

Dai, H. L.; Jiang, Haojie

doi:10.1155/2013/512847

Cited by 9 publications

(4 citation statements)

References 32 publications

(34 reference statements)

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“…Free and forced vibration of shell were examined under different boundary conditions and the forced response of shell was presented with different influence factors. Dai and Jiang [11] presented an analytical solution for forced vibration of a FGPM cylindrical shell and the effects of electric excitation, thermal load, mechanical load, and volume exponent on the static and dynamic behaviors were discussed. From the engineer's point of view, solving a vibration problem is the assessment of the damping properties of resonance pulsation Ω (or damping frequencyf) and modal damping η.…”

Section: Classical Approaches To Free and Forced Vibration Study Of Low Shellsmentioning

confidence: 99%

Dynamic Analysis of Folded Low Shells by Using Finite Element Analysis

Olodo

Ale

Adjovi

et al. 2020

CJAST

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Aims: This work is devoted to the development of a finite element algorithm for solving problem in forced vibrations of folded low shells. Methodology: The differential equations for harmonic analysis are obtained from the Lagrange variational principle. Description of the dynamic behavior is made by the structure discretization into a system of curvilinear iso-parametric finite elements used in modal analysis. The method is implemented by a calculation code on a square-plane folded shell model withnumber of crease edges in both directions k=l=3. Results: Displacement amplitudesare obtained by decomposition into vibration eigenforms. The maximum values of dynamic stresses are determined taking into account the shell's support conditions.The results of the harmonic analysis show thatimprovement in frequency characteristics and reduction of stresses in the folded shell depend on the constructive and internal damping of the structureand the increase in the number of fold edges k and l in both directions for examplebecause this contributes to decrease in the forced vibration amplitudes.

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Section: Classical Approaches To Free and Forced Vibration Study Of Low Shellsmentioning

confidence: 99%

Dynamic Analysis of Folded Low Shells by Using Finite Element Analysis

Olodo

Ale

Adjovi

et al. 2020

CJAST

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“…Chen and co-authors [11][12][13] combined state space formulations and the laminated approximation method to conduct free vibration analysis of FGPM rectangular plate, hollow sphere and fluid filled cylinder subjected to simply supported boundary conditions. Dai and co-authors [14][15][16][17] applied numerical methods to study dynamic characteristics of FGPM circular plate, cylinder and sphere. By using the finite element method, Behjat and co-authors [18,19] studied the static bending, free vibration and transient response of FGPM cylindrical panels and functionally graded piezoelectric plates.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of stepped functionally graded piezoelectric plate with general boundary conditions

Wang

Zhong

Qin

et al. 2020

Smart Mater. Struct.

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A stepped functionally graded piezoelectric (FGPM) plate model is proposed for the first time, and its free and forced vibration are studied by using the domain energy decomposition method. The segmentation technique is used to discretize the structure along the length direction. At the structural boundary and piecewise interface, the weight parameters are introduced to satisfy the boundary conditions and the coordination conditions between the piecewise interfaces. On this basis, the boundary conditions of subdomains can be regarded as free boundary a constraint, which reduces the difficulty in constructing the displacement admissible function. Because all the structures of subdomains are the same, the displacement admissible functions of them are uniformly obtained by the two-dimensional Jacobian orthogonal polynomial expansion. The potential energy function of the plate is based on the first-order shear deformation theory. The displacement admissible function is substituted into the potential energy function, then the standard variational operation is used to obtain the solution equation of the dynamic characteristics of the FGPM plate. Through the numerical calculation, the superior calculation performance of the method is proved, and it is not limited to the boundary conditions. On this basis, the effects of geometric and material parameters on free and forced vibration of FGPM plate are also discussed.

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“…Laminated composite cylindrical shell commonly applied in structural designs is an important element of submerged and floating structures due to its excellent mechanical characteristics of high specific strength-to-weight ratio, good fatigue resistance, and ease of fabrication [1][2][3][4][5]. The vibration problems of fluid-filled shell systems are also common and important in many fields [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Study on Vibrational Power Flow Propagation Characteristics in a Laminated Composite Cylindrical Shell Filled with Fluid

Liu

Xie

2018

Shock and Vibration

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The characteristics of vibrational power flow in an infinite laminated composite cylindrical shell filled with fluid excited by a circumferential line cosine harmonic force are investigated using wave propagation approach. The harmonic motions of the shell and the fluid filled in the shell are described by Love shell theory and acoustic wave equation, respectively. Under the driving force, the vibrational power flow input into the coupled system and the transmission of the power flow carried by different internal forces (moments) of the shell in the axial direction are established. Numerical computations are implemented to investigate the vibrational power flow input and its propagation. It is found that characteristics of the vibrational power flow vary with different circumferential mode orders and frequencies, and the presence of fluid in the shell significantly affects the vibration of the shell structure. Additionally, parametric investigations are carried out to study the effects of the fiber orientation, modulus ratio 11 / 22 , and thickness-to-radius parameter ℎ/ on input power into the coupled system and propagation power along the shell axial direction. This work will provide some guidance for the vibration control of the laminated composite cylindrical shell.

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Forced Vibration Analysis for a FGPM Cylindrical Shell

Cited by 9 publications

References 32 publications

Dynamic Analysis of Folded Low Shells by Using Finite Element Analysis

Dynamic Analysis of Folded Low Shells by Using Finite Element Analysis

Dynamic analysis of stepped functionally graded piezoelectric plate with general boundary conditions

Study on Vibrational Power Flow Propagation Characteristics in a Laminated Composite Cylindrical Shell Filled with Fluid

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