A parametric study on nonlinear flow-induced dynamics of a fluid-conveying cantilevered pipe in post-flutter region from macro to micro scale

Dehrouyeh-Semnani, Amir Mehdi; Zafari-Koloukhi, Hamid; Dehdashti, Esmaeil; Nikkhah‐Bahrami, Mansour

doi:10.1016/j.ijnonlinmec.2016.07.008

Cited by 37 publications

(5 citation statements)

References 33 publications

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“…The nonlinear mathematical formulation derived from the third-order 2 approximation is the well-known model to simulate their nonlinear responses in the pre-and postflutter regions. This approximation model has attracted a great number of research interests from both theoretical and experimental studies [18][19][20][21][22][23][24][25][26]. For cantilevered flexible pipes conveying fluid, the third-order approximation model is incapable of estimating their nonlinear behavior when they undergo extremely large deformations.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear geometrically exact dynamics of fluid-conveying cantilevered hard magnetic soft pipe with uniform and nonuniform magnetizations

Dehrouyeh-Semnani

2023

Mechanical Systems and Signal Processing

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Section: Introductionmentioning

confidence: 99%

Nonlinear geometrically exact dynamics of fluid-conveying cantilevered hard magnetic soft pipe with uniform and nonuniform magnetizations

Dehrouyeh-Semnani

2023

Mechanical Systems and Signal Processing

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“…Guo et al [9] established a three-dimensional (3D) theoretical model with modified coupled stress theory to study the effect of small length scales on two types of periodic motions. Dehrouyeh-Semnani et al [10,11] investigated nonlinear size-dependent resonant characteristics for conveying fluid via extensible microtubes subjected to harmonic loads. Hu et al [12] developed the nonlinear equations of motion for cantilevered, fluidconveying microtubes to analyze the possible size-dependent nonlinear responses based on modified coupled stress theory.…”

Section: Introductionmentioning

confidence: 99%

Study on the Stability of Functionally Graded Simply Supported Fluid-Conveying Microtube under Multi-Physical Fields

2022

Micromachines

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The stability of functionally graded simply supported fluid-conveying microtubes under multiple physical fields was studied in this article. The strain energy of the fluid-conveying microtubes was determined based on strain gradient theory, and the governing equation of the functionally graded, simply supported, fluid-conveying microtube was established using Hamilton’s principle. The Galerkin method was used to solve the governing equation, and the effects of the dimensionless microscale parameters, temperature difference, and magnetic field intensity on the stability of the microtube were investigated. The results showed that the dimensionless microscale parameters have a significant impact on the stability of the microtube. The smaller the dimensionless microscale parameters were, the stronger the microscale effect of the material and the better the microtube stability became. The increase in the temperature difference decreased the eigenfrequency and critical velocity of the microtube and reduced the microtube stability. However, the magnetic field had the opposite effect. The greater the magnetic field intensity was, the greater the eigenfrequency and critical velocity were, and the more stable the microtube became.

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“…Ghayesh et al [18] first proposed a scale-dependent theoretical model considering curvature nonlinearity, derived the nonlinear coupled motion equation of fluid-conveying microtubes and studied the complex viscoelastic coupling dynamics of fluid-conveying microtubes. Considering the inextensibility of the fluid-conveying microtubes and the neglect of coupled stress effects, Dehrouyeh-Semnani et al [19] used the Hamiltonian principle to establish the motion equation of the fluid-conveying microtubes. Hosseini et al [20] established the dynamic equation of fluid-conveying microtubes by using modified strain gradient theory and Euler-Bernoulli beam model and analyzed the size-dependent stability of cantilever fluidconveying microtubes.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Nonlinear Vibration of Functionally Graded Simply Supported Fluid-Conveying Microtubes Subjected to Transverse Excitation Loads

2022

Micromachines

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This paper presents a nonlinear vibration analysis of functionally graded simply supported fluid-conveying microtubes subjected to transverse excitation loads. The development of the nonlinear equation of motion is based on the Euler–Bernoulli theory, Hamilton principle and Strain gradient theory. The nonlinear equation of motion is reduced to a second-order nonlinear ordinary differential equation by the Galerkin method. The Runge–Kutta method is adapted to solve the equation, and the effects of the dimensionless microscale parameters, the amplitude and frequency of excitation loads on the stability of the microtubes system are analyzed. It is found that when the microtube diameter is equal to the material length scale parameter, the microtube movement pattern is quasi-periodic. With the increase of the dimensionless microscale parameter, the microtube movement changes from quasi-periodic to chaos. The smaller the power-law index of volume fraction, the smaller the vibration displacement of microtubes and the better the stability. The larger the amplitude of excitation loads is, the larger the vibration displacement of the microtubes will be. When the frequency of excitation loads is equal to the natural frequency of the microtubes, it will have resonance and the vibration displacement will increase significantly.

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A parametric study on nonlinear flow-induced dynamics of a fluid-conveying cantilevered pipe in post-flutter region from macro to micro scale

Cited by 37 publications

References 33 publications

Nonlinear geometrically exact dynamics of fluid-conveying cantilevered hard magnetic soft pipe with uniform and nonuniform magnetizations

Nonlinear geometrically exact dynamics of fluid-conveying cantilevered hard magnetic soft pipe with uniform and nonuniform magnetizations

Study on the Stability of Functionally Graded Simply Supported Fluid-Conveying Microtube under Multi-Physical Fields

Analysis of Nonlinear Vibration of Functionally Graded Simply Supported Fluid-Conveying Microtubes Subjected to Transverse Excitation Loads

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