Flutter and divergence instability of supported piezoelectric nanotubes conveying fluid

Bahaadini, Reza; Hosseini, Mohammad; Jamali, Behnam

doi:10.1016/j.physb.2017.09.130

Cited by 39 publications

(16 citation statements)

References 49 publications

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“…These instabilities can lead to significant energy harvesting. By decreasing the critical flow velocities, an increase in piezoelectric voltage was observed that resulted in a decrease of the system stability [150]. Thiago investigated the flutter instabilities for piezoelectric transducers-based composite panels (tow steered).…”

Section: Flutter-based Pehmentioning

confidence: 99%

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

2018

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From last few decades, piezoelectric materials have played a vital role as a mechanism of energy harvesting, as they have the tendency to absorb energy from the environment and transform it to electrical energy that can be used to drive electronic devices directly or indirectly. The power of electronic circuits has been cut down to nano or micro watts, which leads towards the development of self-designed piezoelectric transducers that can overcome power generation problems and can be self-powered. Moreover, piezoelectric energy harvesters (PEHs) can reduce the need for batteries, resulting in optimization of the weight of structures. These mechanisms are of great interest for many researchers, as piezoelectric transducers are capable of generating electric voltage in response to thermal, electrical, mechanical and electromagnetic input. In this review paper, Fluid Structure Interaction-based, human-based, and vibration-based energy harvesting mechanisms were studied. Moreover, qualitative and quantitative analysis of existing PEH mechanisms has been carried out.

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Section: Flutter-based Pehmentioning

confidence: 99%

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

2018

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“…The slip boundary theory is one of the popular theories used to study the dynamic behaviors of microand nanofluids since in some researchers' opinion, the fluid sliding effect leads to main influence at nano-and microscale. [30][31][32][33][34][35][36][37] However, the slip boundary condition is not appropriate for liquids because the free path for a liquid molecule is too small to calculate. 2 Therefore, we apply nonlocal fluid theory to investigate small-scale effects induced by the microfluids in the channels.…”

Section: ∂Q ∂Xmentioning

confidence: 99%

“…The critical flow velocity for doublewalled CNTs has been discussed in detail. [32][33][34][35][36][37] Mohammad and colleagues [38][39][40][41] employed the nonlocal strain gradient beam models to study the wave propagation and free vibration behaviors for functionally graded piezoelectric and magneto-electro-elastic nanorods.…”

Section: Introductionmentioning

confidence: 99%

Study on the small-scale effect on wave propagation characteristics of fluid-filled carbon nanotubes based on nonlocal fluid theory

Yang

Wang

2019

Advances in Mechanical Engineering

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In this article, Timoshenko's beam model is established to investigate the wave propagation behaviors for a fluidconveying carbon nanotube when employing the nonlocal stress-strain gradient coupled theory and nonlocal fluid theory. The governing equations of motion for the carbon nanotube are derived. The small-scale influences induced by the nanotube are simulated by nonlocal and strain gradient effects, and the scale effect induced by fluid flow is first investigated applying nonlocal fluid theory. Numerical results obtained by solving the governing equations indicate that the nonlocal effect induced by the nanotube leads to wave damping and a decrease in stiffness, while the strain gradient effect contributes to wave promotion and an enhancement in stiffness. The scale effect caused by the inner fluid only leads to a decay for a high-mode wave since there is no influence from fluid flow on the low-mode wave. The numerical solution is validated by comparing with Monte Carlo simulation and interval analysis method.

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“…Li L et al applied this new model to study the vibration behavior for fluid-filled nanotubes, while more exact results were obtained than other numerical simulation methods [22][23][24]. Zeighampour et al established beam and shell models based on Lim's theory [18] to investigate dynamic properties of double-walled fluid-conveying carbon nanotubes; while the slip boundary theory is employed to analyze the critical fluid velocity [25][26][27][28][29][30]. However, most of the numerical results obtained by these slip boundary models are not satisfactory, since the slip boundary condition is inappropriate for nano-or microscale liquid.…”

Section: Introductionmentioning

confidence: 99%

Axisymmetric Wave Propagation Behavior in Fluid-Conveying Carbon Nanotubes Based on Nonlocal Fluid Dynamics and Nonlocal Strain Gradient Theory

Yang

Lin

Guo

2020

J. Vib. Eng. Technol.

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Purpose Goal for the present research is investigating the axisymmetric wave propagation behaviors of fluid-filled carbon nanotubes (CNTs) with low slenderness ratios when the nanoscale effects contributed by CNT and fluid flow are considered together. Method An elastic shell model for fluid-conveying CNTs is established based on theory of nonlocal elasticity and nonlocal fluid dynamics. The effects of stress non-locality and strain gradient at nanoscale are simulated by applying nonlocal stress and strain gradient theories to CNTs and nonlocal fluid dynamics to fluid flow inside the CNTs, respectively. The equilibrium equations of axisymmetric wave motion in fluid-conveying CNTs are derived. By solving the governing equations, the relationships between wave frequency and all small-scale parameters, as well as the effects caused by fluid flow on different wave modes, are analyzed. Results The numerical simulation indicates that nonlocal stress effects damp first-mode waves but promote propagation of second-mode waves. The strain gradient effect promotes propagation of first-mode waves but has no influence on second-mode waves. The nonlocal fluid effect only causes damping of second-mode waves and has no influence on first-mode waves. Damping caused by nonlocal effects are most affect on waves with short wavelength, and the effect induced by strain gradient almost promotes the propagation of wave with all wavelengths.

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Flutter and divergence instability of supported piezoelectric nanotubes conveying fluid

Cited by 39 publications

References 49 publications

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

Study on the small-scale effect on wave propagation characteristics of fluid-filled carbon nanotubes based on nonlocal fluid theory

Axisymmetric Wave Propagation Behavior in Fluid-Conveying Carbon Nanotubes Based on Nonlocal Fluid Dynamics and Nonlocal Strain Gradient Theory

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