Scale-Dependent Dynamic Behavior of Nanowire-Based Sensor in Accelerating Field

Document Type : Research Paper


1 Mechanical Engineering Group, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran

2 Mechanical Engineering Group, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran

3 Department of Mechanical Engineering, University of Torbat Heydarieh, Torbat Heydarieh, Iran


The accelerating fields (e. g. centrifugal acceleration and constant acceleration) can change the physical performance of nano-sensors significantly. Herein, a new size-dependent model is developed to investigate the scale-dependent dynamic behavior of nanowire-fabricated sensor operated in an accelerating field. The scale-dependent equation of motion is developed by employing a consolidation of the strain gradient elasticity (SGE) and the Gurtin–Murdoch theory (GMT). A semi-analytical solution is extracted for calculating the stability parameters. Effects of different phenomena including centrifugal force, microstructure dependency, surface layer, length-scale-parameter, dispersion forces, squeezed film damping on the dynamic stability parameters are demonstrated.


Main Subjects

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