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Advances in Nano Research Volume 8, Number 4, May 2020 , pages 277-282 DOI: https://doi.org/10.12989/anr.2020.8.4.277 |
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Modal analysis of viscoelastic nanorods under an axially harmonic load |
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Şeref D. Akbaş
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| Abstract | ||
| Axially damped forced vibration responses of viscoelastic nanorods are investigated within the frame of the modal analysis. The nonlocal elasticity theory is used in the constitutive relation of the nanorod with the Kelvin-Voigt viscoelastic model. In the forced vibration problem, a cantilever nanorod subjected to a harmonic load at the free end of the nanorod is considered in the numerical examples. By using the modal technique, the modal expressions of the viscoelastic nanorods are presented and solved exactly in the nonlocal elasticity theory. In the numerical results, the effects of the nonlocal parameter, damping coefficient, geometry and dynamic load parameters on the dynamic responses of the viscoelastic nanobem are presented and discussed. In addition, the difference between the nonlocal theory and classical theory is investigated for the damped forced vibration problem. | ||
| Key Words | ||
| nanorods; nonlocal elasticity theory; damped forced vibration; modal analysis | ||
| Address | ||
| Department of Civil Engineering, Bursa Technical University, Yıldırım Campus, Yıldırım, Bursa 16330, Turkey. | ||