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Forced and free vibrational analysis of viscoelastic nanotubes conveying fluid subjected to moving load in hygro-thermo-magnetic environments with surface effects

Sarparast, H ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1007/s43452-022-00489-3
  3. Publisher: Springer Science and Business Media Deutschland GmbH , 2022
  4. Abstract:
  5. Forced and free vibrational analyses of viscoelastic nanotubes containing fluid under a moving load in complex environments incorporating surface effects are conducted based on the nonlocal strain gradient theory and the Rayleigh beam model. To model the internal nanoflow, the slip boundary condition is employed. Adopting the Galerkin discretization approach, the reduced-order dynamic model of the system is acquired. Analytical and numerical methods are exploited to determine the dynamic response of the system. The impacts of geometry, scale parameter ratio, Knudsen number, fluid velocity, rotary inertia parameter, viscoelastic parameter, surface residual stress, surface elastic modulus, and hygro-thermo-magnetic environments on the dynamic magnification factor, critical moving load speed, cancellation, and maximum free vibration of the system are evaluated. The results indicate that the effects of the viscoelastic parameter on the dynamic behavior of the system differ significantly from those of other parameters. It is indicated that the dynamic magnification factor and critical moving load speed are enhanced by increasing the surface residual stress and the surface elastic modulus. The model and results of the current investigation can serve as a comprehensive benchmark for the optimum design of nanoflow sensors and targeted drug delivery systems. © 2022, Wroclaw University of Science and Technology
  6. Keywords:
  7. Cancellation and maximum free vibration phenomena ; Dynamic magnification factor ; Surface and environmental effects ; Viscoelastic nanotube conveying fluid ; Controlled drug delivery ; Elastic moduli ; Numerical methods ; Residual stresses ; Surface stress ; Targeted drug delivery ; Vibration analysis ; Viscoelasticity ; Cancelation and maximum free vibration phenomenon ; Critical moving load speed ; Dynamic magnification factors ; Free vibration ; Load speed ; Moving load ; Nanotube conveying fluids ; Nonlocal ; Nonlocal strain gradient theory ; Strain gradient theory ; Surface and environmental effect ; Vibration phenomena ; Viscoelastics ; Nanotubes
  8. Source: Archives of Civil and Mechanical Engineering ; Volume 22, Issue 4 , 2022 ; 16449665 (ISSN)
  9. URL: https://link.springer.com/article/10.1007/s43452-022-00489-3