A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Velocity gradient elasticity for nonlinear vibration of carbon nanotube resonators
In this study, for the first time, we investigate the nonlocality superimposed to the size effects on the nonlinear dynamics of an electrically actuated single-walled carbon-nanotube-based resonator. We undertake two models to capture the nanostructure nonlocal size effects: the strain and the velocity gradient theories. We use a reduced-order model based on the differential quadrature method (DQM) to discretize the governing nonlinear equation of motion and acquire a discretized-parameter nonlinear model of the system. The structural nonlinear behavior of the system assuming both strain and velocity gradient theories is investigated using the discretized model. The results suggest that nonlocal and size effects should not be neglected because they improve the prediction of corresponding dynamic amplitudes and, most importantly, the critical resonant frequencies of such nanoresonators. Neglecting these effects may impose a considerable source of error, which can be amended using more accurate modeling techniques.
Velocity gradient elasticity for nonlinear vibration of carbon nanotube resonators
In this study, for the first time, we investigate the nonlocality superimposed to the size effects on the nonlinear dynamics of an electrically actuated single-walled carbon-nanotube-based resonator. We undertake two models to capture the nanostructure nonlocal size effects: the strain and the velocity gradient theories. We use a reduced-order model based on the differential quadrature method (DQM) to discretize the governing nonlinear equation of motion and acquire a discretized-parameter nonlinear model of the system. The structural nonlinear behavior of the system assuming both strain and velocity gradient theories is investigated using the discretized model. The results suggest that nonlocal and size effects should not be neglected because they improve the prediction of corresponding dynamic amplitudes and, most importantly, the critical resonant frequencies of such nanoresonators. Neglecting these effects may impose a considerable source of error, which can be amended using more accurate modeling techniques.
Velocity gradient elasticity for nonlinear vibration of carbon nanotube resonators
Front. Struct. Civ. Eng.
Sedighi, Hamid M. (author) / Ouakad, Hassen M. (author)
Frontiers of Structural and Civil Engineering ; 14 ; 1520-1530
2020-12-01
11 pages
Article (Journal)
Electronic Resource
English
Axial vibration of carbon nanotube heterojunctions using nonlocal elasticity
| British Library Online Contents | 2010
Vibration analysis of single-walled carbon nanotubes using different gradient elasticity theories
| British Library Online Contents | 2012
| British Library Online Contents | 2013
RESEARCH ON NONLINEAR VIBRATION FOR ELECTRICALLY ACTUATED SINGLE-WALLED CARBON NANOTUBE
| DOAJ | 2016
Velocity Filter Based Tissue Elasticity Imaging for Low Frequency Vibration Wave Method
| British Library Online Contents | 2013